IVec

java.lang.Object
- igeo.IParameterObject
- - igeo.IVec

All Implemented Interfaces:

IArithmeticVal<IVecI,IDoubleI>, IEntityParameter, IParameter, ISubobject, ITransformable, IVal, IVecI, IVecOp

Direct Known Subclasses:

IVec4
```
public class IVec
extends IParameterObject
implements IVecI, IEntityParameter
```
Class of 3 dimensional vector.

Author:

Satoru Sugihara

Field Summary

Fields
Modifier and Type Field and Description

static IVec origin

double x

static IVec xaxis

double y

static IVec yaxis

double z

static IVec zaxis
- Fields inherited from class igeo.IParameterObject
  parent

Fields
Modifier and Type	Field and Description
`static IVec`	`origin`
`double`	`x`
`static IVec`	`xaxis`
`double`	`y`
`static IVec`	`yaxis`
`double`	`z`
`static IVec`	`zaxis`

Constructor Summary

Constructors
Constructor and Description
`IVec()`
`IVec(double x, double y)`
`IVec(double x, double y, double z)`
`IVec(IDoubleI x, IDoubleI y, IDoubleI z)`
`IVec(IServerI s)`
`IVec(IServerI s, double x, double y)`
`IVec(IServerI s, double x, double y, double z)`
`IVec(IServerI s, IDoubleI x, IDoubleI y, IDoubleI z)`
`IVec(IServerI s, IVec v)`
`IVec(IServerI s, IVec2I v)`
`IVec(IServerI s, IVecI v)`
`IVec(IVec v)`
`IVec(IVec2I v)`
`IVec(IVecI v)`

Method Summary

Methods
Modifier and Type	Method and Description
`IVec`	`add(double x, double y, double z)`
`IVec`	`add(double f, IVec v)` scale add; alias of add(IVec,double)
`IVec`	`add(double f, IVecI v)` scale add; alias of add(IVecI,double)
`IVec`	`add(IDoubleI x, IDoubleI y, IDoubleI z)`
`IVec`	`add(IDoubleI f, IVecI v)` scale add; alias of add(IVec,IDouble)
`IVec`	`add(IVec v)`
`IVec`	`add(IVec v, double f)` scale add
`IVec`	`add(IVecI v)`
`IVec`	`add(IVecI v, double f)` scale add
`IVec`	`add(IVecI v, IDoubleI f)` scale add
`double`	`angle(double vx, double vy, double vz)` angle in radian, ranging from 0 to Pi
`double`	`angle(double vx, double vy, double vz, double axisX, double axisY, double axisZ)` angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis.
`double`	`angle(ISwitchE e, IVecI v)` angle in radian, ranging from 0 to Pi
`double`	`angle(ISwitchE e, IVecI v, IVecI axis)` angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis.
`IDouble`	`angle(ISwitchR r, IVecI v)` angle in radian, ranging from 0 to Pi
`IDouble`	`angle(ISwitchR r, IVecI v, IVecI axis)` angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis.
`double`	`angle(IVec v)` angle in radian, ranging from 0 to Pi
`double`	`angle(IVecI v)` angle in radian, ranging from 0 to Pi
`double`	`angle(IVecI v, IVecI axis)` angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis.
`static double`	`angle(IVecI pt1, IVecI pt2, IVecI pt3)` measure angle of polyline of pt1, pt2 and pt3 at pt2, which is equivalent to measure angle between vectors from pt2 to pt1 and pt2 to pt3.
`double`	`angle(IVec v, IVec axis)` angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis.
`double`	`angleOnPlane(ISwitchE e, IVecI v, IVecI planeDir)` angle of two vector on a specified plane
`double`	`angleOnPlane(ISwitchE e, IVecI pt, IVecI planeCenter, IVecI planeDir)` angle of two points on a specified plane around the center
`IDouble`	`angleOnPlane(ISwitchR r, IVecI v, IVecI planeDir)` angle of two vector on a specified plane
`IDouble`	`angleOnPlane(ISwitchR r, IVecI pt, IVecI planeCenter, IVecI planeDir)` angle of two points on a specified plane around the center
`double`	`angleOnPlane(IVecI v, IVecI planeDir)` angle of two vector on a specified plane
`double`	`angleOnPlane(IVecI pt, IVecI planeCenter, IVecI planeDir)` angle of two points on a specified plane around the center
`double`	`angleOnPlane(IVec v, IVec planeDir)` angle of two vector on a specified plane
`double`	`angleOnPlane(IVec pt, IVec planeCenter, IVec planeDir)` angle of two points on a specified plane around the center
`static double`	`area(IVecI pt1, IVecI pt2, IVecI pt3)` area of a triangle
`static IVec`	`averageNormal(IVecI[] pts)` average normal of point array in form of a polyline.
`static IVec`	`averageNormal(IVecI[][] pts)` average normal of point array in form of a matrix.
`IVec`	`bisect(double vx, double vy, double vz)` create a new instance of bisector
`IVec`	`bisect(IVec v)` create a new instance of bisector
`IVec`	`bisect(IVecI v)` create a new instance of bisector
`static IVec[]`	`bisectPlane(IVec planeDir1, IVec planePt1, IVec planeDir2, IVec planePt2)` bisector plane of two planes
`static IVec`	`center(IVecI... v)` calculating centetr of multiple points
`static IVec`	`circumcenter(IVecI pt1, IVecI pt2, IVecI pt3)` calculate circumcenter; center of circumcircle
`static IVec[]`	`closestPointsOn2Lines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPointsOn2Lines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPointsOnLines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPointsOnLines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPointsOnSegments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` find two closest points on two finete line segments in a skew relationship
`static IVec[]`	`closestPointsOnSegments(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` find two closest points on two finete line segments in a skew relationship
`static IVec[]`	`closestPtsOnLines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPtsOnLines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)` find two closest points on two infinete lines in a skew relationship, which makes a segment perpendicular to two lines
`static IVec[]`	`closestPtsOnSegments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` find two closest points on two finete line segments in a skew relationship
`static IVec[]`	`closestPtsOnSegments(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` find two closest points on two finete line segments in a skew relationship
`IVec`	`cp()` cp() is alias of dup()
`IVec`	`cp(double vx, double vy, double vz)` cp() is alias of dup().add()
`IVec`	`cp(IDoubleI vx, IDoubleI vy, IDoubleI vz)` cp() is alias of dup().add()
`IVec`	`cp(IVec v)` cp() is alias of dup().add()
`IVec`	`cp(IVecI v)` cp() is alias of dup().add()
`IVec`	`cross(double vx, double vy, double vz)` cross product.
`IVec`	`cross(IVec v)` cross product.
`IVec`	`cross(IVecI v)` cross product, creating a new instance
`IVec[]`	`decompose(IVecI uaxis, IVecI vaxis)` decompose the vector to two input vectors and another perpendicular vector of those two and returns three decomposed vector.
`IVec`	`dif(double vx, double vy, double vz)` create a new instance of difference
`IVec`	`dif(IVec v)` create a new instance of difference
`IVec`	`dif(IVecI v)` create a new instance of difference
`IVec`	`diff(double vx, double vy, double vz)` create a new instance of difference
`IVec`	`diff(IVec v)` create a new instance of difference
`IVec`	`diff(IVecI v)` create a new instance of difference
`double`	`dist(double vx, double vy, double vz)` get distance between two vectors
`double`	`dist(ISwitchE e, IVecI v)` get distance between two vectors
`IDouble`	`dist(ISwitchR r, IVecI v)` get distance between two vectors
`double`	`dist(IVec v)` get distance between two vectors
`double`	`dist(IVecI v)` get distance between two vectors
`double`	`dist2(double vx, double vy, double vz)` get squared distance between two vectors
`double`	`dist2(ISwitchE e, IVecI v)` get squared distance between two vectors
`IDouble`	`dist2(ISwitchR r, IVecI v)` get squared distance between two vectors
`double`	`dist2(IVec v)` get squared distance between two vectors
`double`	`dist2(IVecI v)` get squared distance between two vectors
`static double`	`distBetween2Lines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)`
`static double`	`distBetween2Lines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)`
`static double`	`distBetween2Segments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)`
`static double`	`distBetween2Segments(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static double`	`distBetweenLines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)`
`static double`	`distBetweenLines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)`
`static double`	`distBetweenSegments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)`
`double`	`distToLine(IVecI lineDir)` distance to a line dir
`double`	`distToLine(IVecI lineDir, IVecI linePt)` distance to an infinite line
`double`	`distToPlane(IVecI planeDir, IVecI planePt)` distance to a plane
`double`	`distToSegment(IVecI linePt1, IVecI linePt2)` distance to a line segment
`double`	`distToTriangle(IVecI pt1, IVecI pt2, IVecI pt3)` distance to a triangle
`IVec`	`div(double v)`
`IVec`	`div(IDouble v)`
`IVec`	`div(IDoubleI v)`
`double`	`dot(double vx, double vy, double vz)` dot product in double
`double`	`dot(ISwitchE e, IVecI v)` dot product in double
`IDouble`	`dot(ISwitchR r, IVecI v)` dot product in IDouble
`double`	`dot(IVec v)` dot product in double
`double`	`dot(IVecI v)` dot product in double
`IVec`	`dup()` duplicate the instance
`boolean`	`eq(double vx, double vy, double vz)` check if 2 vectors are same by distance
`boolean`	`eq(double vx, double vy, double vz, double tolerance)` check if 2 vectors are same by distance with tolerace
`boolean`	`eq(ISwitchE e, IVecI v)` check if 2 vectors are same by distance
`boolean`	`eq(ISwitchE e, IVecI v, double tolerance)` check if 2 vectors are same by distance with tolerace
`IBool`	`eq(ISwitchR r, IVecI v)` check if 2 vectors are same by distance
`IBool`	`eq(ISwitchR r, IVecI v, IDoubleI tolerance)` check if 2 vectors are same by distance with tolerace
`boolean`	`eq(IVec v)` check if 2 vectors are same by distance
`boolean`	`eq(IVec v, double tolerance)` check if 2 vectors are same by distance with tolerace
`boolean`	`eq(IVecI v)` check if 2 vectors are same by distance
`boolean`	`eq(IVecI v, double tolerance)` check if 2 vectors are same by distance with tolerace
`boolean`	`eqX(double vx)` check if 2 vectors are same in X
`boolean`	`eqX(double vx, double tolerance)` check if same in X with tolerance
`boolean`	`eqX(ISwitchE e, IVecI v)` check if 2 vectors are same in X
`boolean`	`eqX(ISwitchE e, IVecI v, double tolerance)` check if same in X with tolerance
`IBool`	`eqX(ISwitchR r, IVecI v)` check if 2 vectors are same in X
`IBool`	`eqX(ISwitchR r, IVecI v, IDoubleI tolerance)` check if same in X with tolerance
`boolean`	`eqX(IVec v)` check if 2 vectors are same in X
`boolean`	`eqX(IVec v, double tolerance)`
`boolean`	`eqX(IVecI v)` check if 2 vectors are same in X
`boolean`	`eqX(IVecI v, double tolerance)` check if same in X with tolerance
`boolean`	`eqY(double vy)` check if 2 vectors are same in Y
`boolean`	`eqY(double vy, double tolerance)` check if same in Y with tolerance
`boolean`	`eqY(ISwitchE e, IVecI v)` check if 2 vectors are same in Y
`boolean`	`eqY(ISwitchE e, IVecI v, double tolerance)` check if same in Y with tolerance
`IBool`	`eqY(ISwitchR r, IVecI v)` check if 2 vectors are same in Y
`IBool`	`eqY(ISwitchR r, IVecI v, IDoubleI tolerance)` check if same in Y with tolerance
`boolean`	`eqY(IVec v)` check if 2 vectors are same in Y
`boolean`	`eqY(IVec v, double tolerance)`
`boolean`	`eqY(IVecI v)` check if 2 vectors are same in Y
`boolean`	`eqY(IVecI v, double tolerance)` check if same in Y with tolerance
`boolean`	`eqZ(double vz)` check if 2 vectors are same in Z
`boolean`	`eqZ(double vz, double tolerance)` check if same in Z with tolerance
`boolean`	`eqZ(ISwitchE e, IVecI v)` check if 2 vectors are same in Z
`boolean`	`eqZ(ISwitchE e, IVecI v, double tolerance)` check if same in Z with tolerance
`IBool`	`eqZ(ISwitchR r, IVecI v)` check if 2 vectors are same in Z
`IBool`	`eqZ(ISwitchR r, IVecI v, IDoubleI tolerance)` check if same in Z with tolerance
`boolean`	`eqZ(IVec v)` check if 2 vectors are same in Z
`boolean`	`eqZ(IVec v, double tolerance)`
`boolean`	`eqZ(IVecI v)` check if 2 vectors are same in Z
`boolean`	`eqZ(IVecI v, double tolerance)` check if same in Z with tolerance
`IVec`	`flip()` alias of neg()
`IVec`	`get()`
`static IVec`	`getNormal(double vx1, double vy1, double vz1, double vx2, double vy2, double vz2, double vx3, double vy3, double vz3)`
`IVecI`	`getNormal(IVecI pt2, IVecI pt3)` alias of nml
`static IVecI`	`getNormal(IVecI pt1, IVecI pt2, IVecI pt3)` create normal vector from 3 points
`IVec`	`getNormal(IVec pt2, IVec pt3)` alias of nml
`static IVec`	`getNormal(IVec pt1, IVec pt2, IVec pt3)` create normal vector from 3 points
`IDouble`	`getX()`
`IDouble`	`getY()`
`IDouble`	`getZ()`
`IVec`	`icross(double vx, double vy, double vz)` cross product, changing its values by itself.
`IVec`	`icross(IVec v)` cross product, changing its values by itself.
`IVec`	`icross(IVecI v)` cross product, changing its values by itself.
`static IVec`	`intersect(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersection of two infinite lines.
`static IVec`	`intersect(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)` intersection of two infinite lines.
`static IVec`	`intersect(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersection of two infinite lines.
`static IVec`	`intersect(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersection of two infinite lines.
`static IVec[]`	`intersectCircle(IVec circleNormal1, IVec circleCenter1, double radius1, IVec circleNormal2, IVec circleCenter2, double radius2)`
`static IVec[]`	`intersectCircleAndSphere(IVec circleNormal, IVec circleCenter, double circleRadius, IVec sphereCenter, double sphereRadius)`
`static IVec`	`intersectInfiniteLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfiniteLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectInfLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersect infinite lines; alias of intersect()
`static IVec`	`intersectLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersection of line segments; alias of intersectSegment
`static IVec`	`intersectLine(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)`
`static IVec`	`intersectLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static IVec`	`intersectLine(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)`
`static IVec[]`	`intersectLineAndSphere(IVec lineDir, IVec linePt, IVec center, double radius)` intersection between an infinite line and a sphere.
`static IVec`	`intersectLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersection of line segments; alias of intersectSegment
`static IVec`	`intersectLines(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)`
`static IVec`	`intersectLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static IVec`	`intersectLines(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)`
`static IVec`	`intersectPlane(IVec plane1Dir, IVec plane2Dir)` intersection of two planes at the origin.
`static IVec[]`	`intersectPlane(IVec plane1Dir, IVec plane1Pt, IVec plane2Dir, IVec plane2Pt)` intersection of two planes.
`static IVec[]`	`intersectPlane(IVec plane1Pt1, IVec plane1Pt2, IVec plane1Pt3, IVec plane2Pt1, IVec plane2Pt2, IVec plane2Pt3)` intersection of two planes
`static IVec`	`intersectPlaneAndLine(IVec planeDir, IVec lineDir, IVec linePt)` intersection of one plane at the origin and one infinite line
`static IVec`	`intersectPlaneAndLine(IVec planeDir, IVec planePt, IVec lineDir, IVec linePt)` intersection of one plane and one infinite line
`static IVec`	`intersectPlaneAndLine(IVec planePt1, IVec planePt2, IVec planePt3, IVec linePt1, IVec linePt2)` intersection of one plane and one infinite line
`static IVec`	`intersectPlaneAndSegment(IVec planeDir, IVec linePt1, IVec linePt2)` intersection of one plane at the origin and one line segment.
`static IVec`	`intersectPlaneAndSegment(IVec planeDir, IVec planePt, IVec linePt1, IVec linePt2)` intersection of one plane and one line segment.
`static IVec[]`	`intersectPlaneAndSphere(IVec planeDir, IVec planePt, IVec sphereCenter, double sphereRadius)` intersection circle of a plane and a sphere.
`static IVec`	`intersectSeg(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersection of line segments; alias of intersectSegment
`static IVec`	`intersectSeg(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)`
`static IVec`	`intersectSeg(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static IVec`	`intersectSeg(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)`
`static IVec`	`intersectSegment(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)`
`static IVec`	`intersectSegment(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)`
`static IVec`	`intersectSegment(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)` intersection of line segments.
`static IVec`	`intersectSegment(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)` intersection of line segments.
`static IVec`	`intersectSegments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)` intersection of line segments; alias of intersectSegment
`static IVec`	`intersectSegments(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double tolerance)`
`static IVec`	`intersectSegments(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static IVec`	`intersectSegments(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double tolerance)`
`static IVec[]`	`intersectSphere(IVec sphereCenter1, double radius1, IVec sphereCenter2, double radius2)` intersection circle of two spheres
`static boolean`	`isArrayEqual(IVec[] pts1, IVec[] pts2, boolean cyclic, boolean reverse)`
`static boolean`	`isArrayEqual(IVec[] pts1, IVec[] pts2, boolean cyclic, boolean reverse, double tolerance)`
`static boolean`	`isFlat(IVecI[] pts)`
`static boolean`	`isFlat(IVecI[] pts, double tolerance)`
`static boolean`	`isFlat(IVecI pt1, IVecI pt2, IVecI pt3, IVecI pt4)`
`static boolean`	`isFlat(IVecI pt1, IVecI pt2, IVecI pt3, IVecI pt4, double tolerance)`
`boolean`	`isInside2d(IVec2I[] pts)`
`boolean`	`isInside2d(IVecI[] pts)`
`boolean`	`isInside2d(IVecI projectionDir, IVec2I[] pts)`
`boolean`	`isInside2d(IVecI projectionDir, IVecI[] pts)`
`boolean`	`isInsideTriangle(IVecI pt1, IVecI pt2, IVecI pt3)`
`static boolean`	`isLinesCloserThan(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2, double thresholdDist)`
`static boolean`	`isLinesCloserThan(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2, double thresholdDist)`
`boolean`	`isOnLine(IVecI v1, IVecI v2)` determine if it's on & inside the line
`boolean`	`isOnLine(IVecI v1, IVecI v2, double tolerance)` determine if it's on & inside the line
`boolean`	`isOnPlane(IVecI planeDir, IVecI planePt)`
`boolean`	`isOnPlane(IVecI planeDir, IVecI planePt, double tolerance)`
`boolean`	`isOnPlane(IVecI planePt1, IVecI planePt2, IVecI planePt3)`
`boolean`	`isOnPlane(IVecI planePt1, IVecI planePt2, IVecI planePt3, double tolerance)`
`boolean`	`isOnSegment(IVecI v1, IVecI v2)` alias of isOnLine
`boolean`	`isOnSegment(IVecI v1, IVecI v2, double tolerance)` alias of isOnLine
`boolean`	`isOnTriangle(IVecI pt1, IVecI pt2, IVecI pt3)`
`boolean`	`isOnTriangle(IVecI pt1, IVecI pt2, IVecI pt3, double tolerance)`
`boolean`	`isParallel(IVecI v)`
`boolean`	`isParallel(IVecI v, double angleTolerance)`
`boolean`	`isPerpendicular(IVecI v)`
`boolean`	`isPerpendicular(IVecI v, double angleTolerance)`
`static boolean`	`isSegCloserThan(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double thresholdDist)`
`static boolean`	`isSegCloserThan(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double thresholdDist)`
`static boolean`	`isSegmentsCloserThan(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2, double thresholdDist)`
`static boolean`	`isSegmentsCloserThan(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2, double thresholdDist)`
`static boolean`	`isStraight(IVecI[] pts)`
`static boolean`	`isStraight(IVecI[] pts, double tolerance)` static methods
`boolean`	`isStraight(IVecI v1, IVecI v2)`
`boolean`	`isStraight(IVecI v1, IVecI v2, double tolerance)`
`boolean`	`isValid()` checking x, y, and z is valid number (not Infinite, nor NaN).
`double`	`len()` get length of the vector
`IVec`	`len(double l)` set length of the vector
`IVec`	`len(IDoubleI l)` set length of the vector
`double`	`len(ISwitchE e)` get length of the vector
`IDouble`	`len(ISwitchR r)` get length of the vector
`double`	`len2()` get squared length of the vector
`double`	`len2(ISwitchE e)` get squared length of the vector
`IDouble`	`len2(ISwitchR r)` get squared length of the vector
`static double`	`lineDist(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)`
`static double`	`lineDist(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)`
`IVec`	`mid(double vx, double vy, double vz)` create a new instance of midpoint
`IVec`	`mid(IVec v)` create a new instance of midpoint
`IVec`	`mid(IVecI v)` create a new instance of midpoint
`IVec`	`mirror(double planeX, double planeY, double planeZ)` alias of ref
`IVec`	`mirror(double centerX, double centerY, double centerZ, double planeX, double planeY, double planeZ)` alias of ref
`IVec`	`mirror(IVec planeDir)` alias of ref
`IVec`	`mirror(IVecI planeDir)` alias of ref
`IVec`	`mirror(IVecI center, IVecI planeDir)` alias of ref
`IVec`	`mirror(IVec center, IVec planeDir)` alias of ref
`IVec`	`mul(double v)`
`IVec`	`mul(IDouble v)`
`IVec`	`mul(IDoubleI v)`
`IVec`	`mv(double vx, double vy, double vz)` mv() is alias of add()
`IVec`	`mv(IDoubleI vx, IDoubleI vy, IDoubleI vz)` mv() is alias of add()
`IVec`	`mv(IVecI v)` mv() is alias of add()
`IVec`	`neg()`
`IVec`	`nml(double vx, double vy, double vz)` alias of cross.
`IVec`	`nml(double vx1, double vy1, double vz1, double vx2, double vy2, double vz2)` create normal vector from 3 points of self, pt1 and pt2 (not unitized)
`static IVec`	`nml(double vx1, double vy1, double vz1, double vx2, double vy2, double vz2, double vx3, double vy3, double vz3)` create normal vector from 3 points
`IVec`	`nml(IVec v)` alias of cross.
`IVec`	`nml(IVecI v)` alias of cross.
`IVec`	`nml(IVecI pt1, IVecI pt2)` create normal vector from 3 points of self, pt1 and pt2 (not unitized)
`static IVecI`	`nml(IVecI pt1, IVecI pt2, IVecI pt3)` create normal vector from 3 points
`IVec`	`nml(IVec pt1, IVec pt2)` create normal vector from 3 points of self, pt1 and pt2 (not unitized)
`static IVec`	`nml(IVec pt1, IVec pt2, IVec pt3)` create normal vector from 3 points
`static IVec[]`	`offset(IVec[] pts, double width)`
`static IVec[]`	`offset(IVec[] pts, double width, boolean closed)`
`static IVec[]`	`offset(IVec[] pts, double width, IVecI planeNormal)`
`static IVec[]`	`offset(IVec[] pts, double width, IVecI[] normals)`
`static IVec[]`	`offset(IVec[] pts, double width, IVecI[] normals, boolean closed)`
`static IVec[]`	`offset(IVec[] pts, double width, IVecI planeNormal, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, double width)` offset without normal vector.
`static IVecI[]`	`offset(IVecI[] pts, double width, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, double width, IVecI planeNormal)` offset with one normal vector
`static IVecI[]`	`offset(IVecI[] pts, double width, IVecI[] normals)` offset with array of normal vectors
`static IVecI[]`	`offset(IVecI[] pts, double width, IVecI[] normals, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, double width, IVecI planeNormal, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width, IVecI planeNormal)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width, IVecI[] normals)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width, IVecI[] normals, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, IDoubleI width, IVecI planeNormal, boolean closed)`
`static IVecI[]`	`offset(IVecI[] pts, int ptNum, int returnNum, double width, IVecI[] normals, boolean closed)` offset points
`static IVecI[]`	`offset(IVecI[] pts, int ptNum, int returnNum, IDoubleI width, IVecI[] normals, boolean closed)` offset points
`static IVecI[]`	`offsetNormal(IVecI[] pts, int ptNum, boolean close)`
`static IVec[]`	`perpendicularTo2Lines(IVecI lineDir1, IVecI linePt1, IVecI lineDir2, IVecI linePt2)` alias to closestPointsOn2Lines
`static IVec[]`	`perpendicularTo2Lines(IVec lineDir1, IVec linePt1, IVec lineDir2, IVec linePt2)` alias to closestPointsOn2Lines
`IVec`	`perpendicularVecToLine(IVecI lineDir)` create a new vector from line to this point perpendicular to the line dir
`IVec`	`perpendicularVecToLine(IVecI lineDir, IVecI linePt)` create a new vector from this point to the line in parpendicular direction.
`double[]`	`projectTo2Vec(IVecI v1, IVecI v2)` project the vector to the plane defined by two input vector and decompose vector to two vector and another perpendicular vector and returns coefficient of them.
`IVec`	`projectToLine(IVecI linePt, IVecI lineDir)` project to an infinite line.
`IVec`	`projectToPlane(IVecI planeNormal)` project a vector onto a plane at origin
`static void`	`projectToPlane(IVecI[] pts)` project point array to a plane.
`static void`	`projectToPlane(IVecI[][] pts)` project point array to a plane.
`static void`	`projectToPlane(IVecI[][] pts, IVecI planeNormal)` project point array to a plane.
`static void`	`projectToPlane(IVecI[][] pts, IVecI planeNormal, IVecI planePt)` project point array to a plane.
`static void`	`projectToPlane(IVecI[][] pts, IVecI projectDir, IVecI planeNormal, IVecI planePt)` project point array to a plane.
`static void`	`projectToPlane(IVecI[] pts, IVecI planeNormal)` project point array to a plane.
`static void`	`projectToPlane(IVecI[] pts, IVecI planeNormal, IVecI planePt)` project point array to a plane.
`static void`	`projectToPlane(IVecI[] pts, IVecI projectDir, IVecI planeNormal, IVecI planePt)` project point array to a plane.
`IVec`	`projectToPlane(IVecI projectDir, IVecI planeNormal)` project a vector onto a plane at origin towards a specified direction
`IVec`	`projectToPlane(IVecI projectDir, IVecI planeNormal, IVecI planePoint)` project a point onto a plane at planePoint towards a specified direction
`static IVecI`	`projectToPlane(IVecI pt, IVecI projectDir, IVecI planeNormal, IVecI planePt)` project point a plane.
`IVec`	`projectToSegment(IVecI linePt1, IVecI linePt2)` project to a line segment.
`IVec`	`projectToTriangle(IVecI pt1, IVecI pt2, IVecI pt3)`
`double`	`projectToVec(IVecI v)` project this vector to the input vector and returns projection coefficient.
`double`	`ratioOnSegment(IVecI linePt1, IVecI linePt2)` ratio of projected point between two points (line segment).
`IVec`	`ref(double planeX, double planeY, double planeZ)` reflect (mirror) 3 dimensionally to the other side of the plane
`IVec`	`ref(double centerX, double centerY, double centerZ, double planeX, double planeY, double planeZ)` reflect (mirror) 3 dimensionally to the other side of the plane at the center
`IVec`	`ref(IVec planeDir)` reflect (mirror) 3 dimensionally to the other side of the plane
`IVec`	`ref(IVecI planeDir)` reflect (mirror) 3 dimensionally to the other side of the plane
`IVec`	`ref(IVecI center, IVecI planeDir)` reflect (mirror) 3 dimensionally to the other side of the plane at the center
`IVec`	`ref(IVec center, IVec planeDir)` reflect (mirror) 3 dimensionally to the other side of the plane at the center
`IVec`	`rev()` alias of neg()
`IVec`	`rot(double angle)` rotation on xy-plane
`IVec`	`rot(double axisX, double axisY, double axisZ, double angle)` rotate the vector around the axis
`IVec`	`rot(double centerX, double centerY, double centerZ, double axisX, double axisY, double axisZ, double angle)` rotation around axis vector and center point
`IVec`	`rot(IDoubleI angle)` rotation on xy-plane
`IVec`	`rot(IVec axis, double angle)` rotate the vector around the axis
`IVec`	`rot(IVecI axis, double angle)` rotation around axis vector
`IVec`	`rot(IVecI axis, IDoubleI angle)` rotation around axis vector
`IVec`	`rot(IVecI axis, IVecI destDir)` rotation around axis towards destination direction
`IVec`	`rot(IVecI center, IVecI axis, double angle)` rotation around axis vector and center point
`IVec`	`rot(IVecI center, IVecI axis, IDoubleI angle)` rotation around axis vector and center point
`IVec`	`rot(IVecI center, IVecI axis, IVecI destPt)` rotation around axis and center towards destination point
`IVec`	`rot(IVec axis, IVec destDir)` rotation around axis towards destination direction
`IVec`	`rot(IVec center, IVec axis, double angle)`
`IVec`	`rot(IVec center, IVec axis, IVec destPt)` rotation around axis and center towards destination point
`IVec`	`rot2(double angle)` rotation on xy-plane; alias of rot(double)
`IVec`	`rot2(double centerX, double centerY, double angle)` rotation on xy-plane
`IVec`	`rot2(IDoubleI angle)` rotation on xy-plane; alias of rot(IDoubleI)
`IVec`	`rot2(IVec destDir)` rotation on xy-plane towards destDir
`IVec`	`rot2(IVec center, double angle)` rotation on xy-plane
`IVec`	`rot2(IVecI destDir)` rotation on xy-plane towards destDir
`IVec`	`rot2(IVecI center, double angle)` rotation on xy-plane
`IVec`	`rot2(IVecI center, IDoubleI angle)` rotation on xy-plane
`IVec`	`rot2(IVecI center, IVecI destPt)` rotation on xy-plane towards destPt
`IVec`	`rot2(IVec center, IVec destPt)` rotation on xy-plane towards destPt
`IVec`	`scale(double f)` alias of mul
`IVec`	`scale(double centerX, double centerY, double centerZ, double f)` scale from the center
`IVec`	`scale(IDoubleI f)` alias of mul
`IVec`	`scale(IVec center, double f)` scale from the center
`IVec`	`scale(IVecI center, double f)` scale from the center
`IVec`	`scale(IVecI center, IDoubleI f)` scale from the center
`IVec`	`scale1d(double axisX, double axisY, double axisZ, double f)` scale only in 1 direction
`IVec`	`scale1d(double centerX, double centerY, double centerZ, double axisX, double axisY, double axisZ, double f)` scale only in 1 direction
`IVec`	`scale1d(IVec axis, double f)` scale only in 1 direction
`IVec`	`scale1d(IVecI axis, double f)` scale only in 1 direction
`IVec`	`scale1d(IVecI axis, IDoubleI f)` scale only in 1 direction
`IVec`	`scale1d(IVecI center, IVecI axis, double f)` scale only in 1 direction
`IVec`	`scale1d(IVecI center, IVecI axis, IDoubleI f)` scale only in 1 direction
`IVec`	`scale1d(IVec center, IVec axis, double f)` scale only in 1 direction
`static double`	`segDist(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)`
`static double`	`segDist(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`static double`	`segmentDist(IVecI line1Pt1, IVecI line1Pt2, IVecI line2Pt1, IVecI line2Pt2)`
`static double`	`segmentDist(IVec line1Pt1, IVec line1Pt2, IVec line2Pt1, IVec line2Pt2)`
`IVec`	`set(double x, double y, double z)`
`IVec`	`set(IDoubleI x, IDoubleI y, IDoubleI z)`
`IVec`	`set(IVec v)`
`IVec`	`set(IVecI v)`
`IVec`	`shear(double sxy, double syx, double syz, double szy, double szx, double sxz)` shear operation
`IVec`	`shear(IDoubleI sxy, IDoubleI syx, IDoubleI syz, IDoubleI szy, IDoubleI szx, IDoubleI sxz)` shear operation
`IVec`	`shear(IVecI center, double sxy, double syx, double syz, double szy, double szx, double sxz)` shear operation
`IVec`	`shear(IVecI center, IDoubleI sxy, IDoubleI syx, IDoubleI syz, IDoubleI szy, IDoubleI szx, IDoubleI sxz)` shear operation
`IVec`	`shearXY(double sxy, double syx)` shear operation on XY
`IVec`	`shearXY(IDoubleI sxy, IDoubleI syx)` shear operation on XY
`IVec`	`shearXY(IVecI center, double sxy, double syx)` shear operation on XY
`IVec`	`shearXY(IVecI center, IDoubleI sxy, IDoubleI syx)` shear operation on XY
`IVec`	`shearYZ(double syz, double szy)` shear operation on YZ
`IVec`	`shearYZ(IDoubleI syz, IDoubleI szy)` shear operation on YZ
`IVec`	`shearYZ(IVecI center, double syz, double szy)` shear operation on YZ
`IVec`	`shearYZ(IVecI center, IDoubleI syz, IDoubleI szy)` shear operation on YZ
`IVec`	`shearZX(double szx, double sxz)` shear operation on ZX
`IVec`	`shearZX(IDoubleI szx, IDoubleI sxz)` shear operation on ZX
`IVec`	`shearZX(IVecI center, double szx, double sxz)` shear operation on ZX
`IVec`	`shearZX(IVecI center, IDoubleI szx, IDoubleI sxz)` shear operation on ZX
`IVectorObject`	`show()` visualize a vector as an arrow.
`IVectorObject`	`show(IServerI s)` visualize a vector as an arrow.
`IVectorObject`	`show(IServerI s, IVecI root)` visualize a vector as an arrow.
`IVectorObject`	`show(IVecI root)` visualize a vector as an arrow.
`IVec`	`sub(double x, double y, double z)`
`IVec`	`sub(IDoubleI x, IDoubleI y, IDoubleI z)`
`IVec`	`sub(IVec v)`
`IVec`	`sub(IVecI v)`
`IVec`	`sum(double vx, double vy, double vz)` create a new instance of summation
`IVec`	`sum(IVec... v)` create a new instance of summation
`IVec`	`sum(IVec v)` create a new instance of summation
`IVec`	`sum(IVec v2, double w2)` create a new instance of weighted summation
`IVec`	`sum(IVec v2, double w1, double w2)` create a new instance of weighted summation
`IVec`	`sum(IVecI... v)` create a new instance of summation
`IVec`	`sum(IVecI v)` create a new instance of summation
`IVec`	`sum(IVecI v2, double w2)` create a new instance of weighted summation
`IVec`	`sum(IVecI v2, double w1, double w2)` create a new instance of weighted summation
`IVec`	`sum(IVecI v2, IDoubleI w2)` create a new instance of weighted summation
`IVec`	`sum(IVecI v2, IDoubleI w1, IDoubleI w2)` create a new instance of weighted summation
`IVec2`	`to2d()`
`IVec2`	`to2d(IVecI projectionDir)`
`IVec2`	`to2d(IVecI xaxis, IVecI yaxis)`
`IVec2`	`to2d(IVecI xaxis, IVecI yaxis, IVecI origin)`
`IVec4`	`to4d()`
`IVec4`	`to4d(double w)`
`IVec4`	`to4d(IDoubleI w)`
`static IVec[]`	`toIVecArray(IVecI[] array)`
`java.lang.String`	`toString()`
`IVec`	`transform(IMatrix3I mat)` transform with a transformation matrix
`IVec`	`transform(IMatrix4I mat)` transform with a transformation matrix
`IVec`	`transform(IVecI xvec, IVecI yvec, IVecI zvec)` transform with a transformation vectors
`IVec`	`transform(IVecI xvec, IVecI yvec, IVecI zvec, IVecI translate)` transform with a transformation vectors
`IVec`	`transform(IVec xvec, IVec yvec, IVec zvec)`
`IVec`	`transform(IVec xvec, IVec yvec, IVec zvec, IVec translate)`
`IVec`	`translate(double x, double y, double z)` alias of add()
`IVec`	`translate(IDoubleI x, IDoubleI y, IDoubleI z)` alias of add()
`IVec`	`translate(IVecI v)` alias of add()
`IVec`	`unit()` unitize the vector
`double`	`x()` getting x component
`IVec`	`x(double vx)` setting x component
`IVec`	`x(IDoubleI vx)` setting x component
`double`	`x(ISwitchE e)` getting x component
`IDouble`	`x(ISwitchR r)` getting x component
`IVec`	`x(IVec2I v)` setting x component by x component of input vector
`IVec`	`x(IVecI v)` setting x component by x component of input vector
`double`	`y()` getting y component
`IVec`	`y(double vy)` setting y component
`IVec`	`y(IDoubleI vy)` setting y component
`double`	`y(ISwitchE e)` getting y component
`IDouble`	`y(ISwitchR r)` getting y component
`IVec`	`y(IVec2I v)` setting y component by y component of input vector
`IVec`	`y(IVecI v)` setting y component by y component of input vector
`double`	`z()` getting z component
`IVec`	`z(double vz)` setting z component
`IVec`	`z(IDoubleI vz)` setting z component
`double`	`z(ISwitchE e)` getting z component
`IDouble`	`z(ISwitchR r)` getting z component
`IVec`	`z(IVecI v)` setting z component by z component of input vector
`IVec`	`zero()` setting all zero

Methods inherited from class igeo.IParameterObject
createObject, parent, parent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

origin
```
public static final IVec origin
```

xaxis
```
public static final IVec xaxis
```

yaxis
```
public static final IVec yaxis
```

zaxis
```
public static final IVec zaxis
```

x
```
public double x
```

y
```
public double y
```

z
```
public double z
```

Constructor Detail

IVec
```
public IVec()
```

IVec

public IVec(double x,
    double y,
    double z)

IVec
```
public IVec(double x,
    double y)
```

IVec
```
public IVec(IVec v)
```

IVec
```
public IVec(IVecI v)
```

IVec

public IVec(IDoubleI x,
    IDoubleI y,
    IDoubleI z)

IVec
```
public IVec(IVec2I v)
```

IVec
```
public IVec(IServerI s)
```

IVec

public IVec(IServerI s,
    double x,
    double y,
    double z)

IVec

public IVec(IServerI s,
    double x,
    double y)

IVec
```
public IVec(IServerI s,
    IVec v)
```

IVec
```
public IVec(IServerI s,
    IVecI v)
```

IVec

public IVec(IServerI s,
    IDoubleI x,
    IDoubleI y,
    IDoubleI z)

IVec

public IVec(IServerI s,
    IVec2I v)

Method Detail

x
```
public double x()
```
Description copied from interface: IVecI

getting x component

Specified by:

x in interface IVecI

y
```
public double y()
```
Description copied from interface: IVecI

getting y component

Specified by:

y in interface IVecI

z
```
public double z()
```
Description copied from interface: IVecI

getting z component

Specified by:

z in interface IVecI

x
```
public IVec x(double vx)
```
setting x component

Specified by:

x in interface IVecI

y
```
public IVec y(double vy)
```
setting y component

Specified by:

y in interface IVecI

z
```
public IVec z(double vz)
```
setting z component

Specified by:

z in interface IVecI

x
```
public IVec x(IDoubleI vx)
```
setting x component

Specified by:

x in interface IVecI

y
```
public IVec y(IDoubleI vy)
```
setting y component

Specified by:

y in interface IVecI

z
```
public IVec z(IDoubleI vz)
```
setting z component

Specified by:

z in interface IVecI

x
```
public IVec x(IVecI v)
```
setting x component by x component of input vector

Specified by:

x in interface IVecI

y
```
public IVec y(IVecI v)
```
setting y component by y component of input vector

Specified by:

y in interface IVecI

z
```
public IVec z(IVecI v)
```
setting z component by z component of input vector

Specified by:

z in interface IVecI

x
```
public IVec x(IVec2I v)
```
setting x component by x component of input vector

Specified by:

x in interface IVecI

y
```
public IVec y(IVec2I v)
```
setting y component by y component of input vector

Specified by:

y in interface IVecI

x
```
public double x(ISwitchE e)
```
getting x component

Specified by:

x in interface IVecI

y
```
public double y(ISwitchE e)
```
getting y component

Specified by:

y in interface IVecI

z
```
public double z(ISwitchE e)
```
getting z component

Specified by:

z in interface IVecI

x
```
public IDouble x(ISwitchR r)
```
getting x component

Specified by:

x in interface IVecI

y
```
public IDouble y(ISwitchR r)
```
getting y component

Specified by:

y in interface IVecI

z
```
public IDouble z(ISwitchR r)
```
getting z component

Specified by:

z in interface IVecI

get
```
public IVec get()
```
Specified by:

get in interface IParameter

Specified by:

get in interface IVecI

Specified by:

get in interface IVecOp

dup
```
public IVec dup()
```
Description copied from interface: ITransformable

duplicate the instance

Specified by:

dup in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

dup in interface ITransformable

Specified by:

dup in interface IVecI

to2d
```
public IVec2 to2d()
```
Specified by:

to2d in interface IVecI

to2d

public IVec2 to2d(IVecI projectionDir)

Specified by:: to2d in interface IVecI

to2d

public IVec2 to2d(IVecI xaxis,
         IVecI yaxis)

Specified by:: to2d in interface IVecI

to2d

public IVec2 to2d(IVecI xaxis,
         IVecI yaxis,
         IVecI origin)

Specified by:: to2d in interface IVecI

to4d
```
public IVec4 to4d()
```
Specified by:

to4d in interface IVecI

to4d
```
public IVec4 to4d(double w)
```
Specified by:

to4d in interface IVecI

to4d
```
public IVec4 to4d(IDoubleI w)
```
Specified by:

to4d in interface IVecI

getX
```
public IDouble getX()
```
Specified by:

getX in interface IVecI

getY
```
public IDouble getY()
```
Specified by:

getY in interface IVecI

getZ
```
public IDouble getZ()
```
Specified by:

getZ in interface IVecI

set

public IVec set(double x,
       double y,
       double z)

Specified by:: set in interface IVecI

set
```
public IVec set(IVec v)
```

set
```
public IVec set(IVecI v)
```
Specified by:

set in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

set in interface IVecI

set

public IVec set(IDoubleI x,
       IDoubleI y,
       IDoubleI z)

Specified by:: set in interface IVecI

add
```
public IVec add(double x,
       double y,
       double z)
```
Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

add

public IVec add(IDoubleI x,
       IDoubleI y,
       IDoubleI z)

Specified by:: add in interface ITransformable
Specified by:: add in interface IVecI

add
```
public IVec add(IVec v)
```

add
```
public IVec add(IVecI v)
```
Specified by:

add in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

sub
```
public IVec sub(double x,
       double y,
       double z)
```
Specified by:

sub in interface ITransformable

Specified by:

sub in interface IVecI

sub

public IVec sub(IDoubleI x,
       IDoubleI y,
       IDoubleI z)

Specified by:: sub in interface ITransformable
Specified by:: sub in interface IVecI

sub
```
public IVec sub(IVec v)
```

sub
```
public IVec sub(IVecI v)
```
Specified by:

sub in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

sub in interface ITransformable

Specified by:

sub in interface IVecI

mul
```
public IVec mul(double v)
```
Specified by:

mul in interface ITransformable

Specified by:

mul in interface IVecI

mul
```
public IVec mul(IDouble v)
```

mul
```
public IVec mul(IDoubleI v)
```
Specified by:

mul in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

mul in interface ITransformable

Specified by:

mul in interface IVecI

div
```
public IVec div(double v)
```
Specified by:

div in interface ITransformable

Specified by:

div in interface IVecI

div
```
public IVec div(IDouble v)
```

div
```
public IVec div(IDoubleI v)
```
Specified by:

div in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

div in interface ITransformable

Specified by:

div in interface IVecI

neg
```
public IVec neg()
```
Specified by:

neg in interface ITransformable

Specified by:

neg in interface IVecI

rev
```
public IVec rev()
```
alias of neg()

Specified by:

rev in interface IVecI

flip
```
public IVec flip()
```
alias of neg()

Specified by:

flip in interface ITransformable

Specified by:

flip in interface IVecI

zero
```
public IVec zero()
```
setting all zero

Specified by:

zero in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

zero in interface IVecI

add

public IVec add(IVec v,
       double f)

scale add

add
```
public IVec add(IVecI v,
       double f)
```
scale add

Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

add
```
public IVec add(IVecI v,
       IDoubleI f)
```
scale add

Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

add

public IVec add(double f,
       IVec v)

scale add; alias of add(IVec,double)

add
```
public IVec add(double f,
       IVecI v)
```
scale add; alias of add(IVecI,double)

Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

add
```
public IVec add(IDoubleI f,
       IVecI v)
```
scale add; alias of add(IVec,IDouble)

Specified by:

add in interface ITransformable

Specified by:

add in interface IVecI

dot
```
public double dot(IVec v)
```
dot product in double

dot
```
public double dot(IVecI v)
```
dot product in double

Specified by:

dot in interface IVecI

dot

public double dot(double vx,
         double vy,
         double vz)

dot product in double

Specified by:: dot in interface IVecI

dot

public double dot(ISwitchE e,
         IVecI v)

dot product in double

Specified by:: dot in interface IVecI

dot

public IDouble dot(ISwitchR r,
          IVecI v)

dot product in IDouble

Specified by:: dot in interface IVecI

cross
```
public IVec cross(IVec v)
```
cross product. returning a new instance, not changing own content! 2011/08/03

cross

public IVec cross(double vx,
         double vy,
         double vz)

cross product.

Specified by:: cross in interface IVecI

cross
```
public IVec cross(IVecI v)
```
Description copied from interface: IVecI

cross product, creating a new instance

Specified by:

cross in interface IVecI

icross
```
public IVec icross(IVec v)
```
cross product, changing its values by itself. no new instance created.

icross

public IVec icross(double vx,
          double vy,
          double vz)

cross product, changing its values by itself. no new instance created.

icross
```
public IVec icross(IVecI v)
```
cross product, changing its values by itself. no new instance created.

len
```
public double len()
```
get length of the vector

Specified by:

len in interface IVecI

len
```
public double len(ISwitchE e)
```
get length of the vector

Specified by:

len in interface IVecI

len
```
public IDouble len(ISwitchR r)
```
get length of the vector

Specified by:

len in interface IVecI

len2
```
public double len2()
```
get squared length of the vector

Specified by:

len2 in interface IVecI

len2
```
public double len2(ISwitchE e)
```
get squared length of the vector

Specified by:

len2 in interface IVecI

len2
```
public IDouble len2(ISwitchR r)
```
get squared length of the vector

Specified by:

len2 in interface IVecI

len
```
public IVec len(double l)
```
set length of the vector

Specified by:

len in interface IVecI

len
```
public IVec len(IDoubleI l)
```
set length of the vector

Specified by:

len in interface IVecI

unit
```
public IVec unit()
```
unitize the vector

Specified by:

unit in interface IVecI

dist
```
public double dist(IVec v)
```
get distance between two vectors

dist
```
public double dist(IVecI v)
```
get distance between two vectors

Specified by:

dist in interface IVecI

dist

public double dist(double vx,
          double vy,
          double vz)

get distance between two vectors

Specified by:: dist in interface IVecI

dist
```
public double dist(ISwitchE e,
          IVecI v)
```
get distance between two vectors

Specified by:

dist in interface IVecI

dist

public IDouble dist(ISwitchR r,
           IVecI v)

get distance between two vectors

Specified by:: dist in interface IVecI

dist2
```
public double dist2(IVec v)
```
get squared distance between two vectors

dist2
```
public double dist2(double vx,
           double vy,
           double vz)
```
get squared distance between two vectors

Specified by:

dist2 in interface IVecI

dist2
```
public double dist2(IVecI v)
```
get squared distance between two vectors

Specified by:

dist2 in interface IVecI

dist2
```
public double dist2(ISwitchE e,
           IVecI v)
```
get squared distance between two vectors

Specified by:

dist2 in interface IVecI

dist2
```
public IDouble dist2(ISwitchR r,
            IVecI v)
```
get squared distance between two vectors

Specified by:

dist2 in interface IVecI

eq
```
public boolean eq(IVec v)
```
check if 2 vectors are same by distance

eq

public boolean eq(double vx,
         double vy,
         double vz)

check if 2 vectors are same by distance

Specified by:: eq in interface IVecI

eq
```
public boolean eq(IVecI v)
```
check if 2 vectors are same by distance

Specified by:

eq in interface IVecI

eq
```
public boolean eq(ISwitchE e,
         IVecI v)
```
check if 2 vectors are same by distance

Specified by:

eq in interface IVecI

eq
```
public IBool eq(ISwitchR r,
       IVecI v)
```
check if 2 vectors are same by distance

Specified by:

eq in interface IVecI

eq

public boolean eq(IVec v,
         double tolerance)

check if 2 vectors are same by distance with tolerace

eq

public boolean eq(double vx,
         double vy,
         double vz,
         double tolerance)

check if 2 vectors are same by distance with tolerace

Specified by:: eq in interface IVecI

eq
```
public boolean eq(IVecI v,
         double tolerance)
```
check if 2 vectors are same by distance with tolerace

Specified by:

eq in interface IVecI

eq

public boolean eq(ISwitchE e,
         IVecI v,
         double tolerance)

check if 2 vectors are same by distance with tolerace

Specified by:: eq in interface IVecI

eq

public IBool eq(ISwitchR r,
       IVecI v,
       IDoubleI tolerance)

check if 2 vectors are same by distance with tolerace

Specified by:: eq in interface IVecI

eqX
```
public boolean eqX(IVec v)
```
check if 2 vectors are same in X

eqY
```
public boolean eqY(IVec v)
```
check if 2 vectors are same in Y

eqZ
```
public boolean eqZ(IVec v)
```
check if 2 vectors are same in Z

eqX
```
public boolean eqX(double vx)
```
check if 2 vectors are same in X

Specified by:

eqX in interface IVecI

eqY
```
public boolean eqY(double vy)
```
check if 2 vectors are same in Y

Specified by:

eqY in interface IVecI

eqZ
```
public boolean eqZ(double vz)
```
check if 2 vectors are same in Z

Specified by:

eqZ in interface IVecI

eqX
```
public boolean eqX(IVecI v)
```
check if 2 vectors are same in X

Specified by:

eqX in interface IVecI

eqY
```
public boolean eqY(IVecI v)
```
check if 2 vectors are same in Y

Specified by:

eqY in interface IVecI

eqZ
```
public boolean eqZ(IVecI v)
```
check if 2 vectors are same in Z

Specified by:

eqZ in interface IVecI

eqX

public boolean eqX(ISwitchE e,
          IVecI v)

check if 2 vectors are same in X

Specified by:: eqX in interface IVecI

eqY

public boolean eqY(ISwitchE e,
          IVecI v)

check if 2 vectors are same in Y

Specified by:: eqY in interface IVecI

eqZ

public boolean eqZ(ISwitchE e,
          IVecI v)

check if 2 vectors are same in Z

Specified by:: eqZ in interface IVecI

eqX
```
public IBool eqX(ISwitchR r,
        IVecI v)
```
check if 2 vectors are same in X

Specified by:

eqX in interface IVecI

eqY
```
public IBool eqY(ISwitchR r,
        IVecI v)
```
check if 2 vectors are same in Y

Specified by:

eqY in interface IVecI

eqZ
```
public IBool eqZ(ISwitchR r,
        IVecI v)
```
check if 2 vectors are same in Z

Specified by:

eqZ in interface IVecI

eqX

public boolean eqX(IVec v,
          double tolerance)

eqY

public boolean eqY(IVec v,
          double tolerance)

eqZ

public boolean eqZ(IVec v,
          double tolerance)

eqX
```
public boolean eqX(double vx,
          double tolerance)
```
Description copied from interface: IVecI

check if same in X with tolerance

Specified by:

eqX in interface IVecI

eqY
```
public boolean eqY(double vy,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Y with tolerance

Specified by:

eqY in interface IVecI

eqZ
```
public boolean eqZ(double vz,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Z with tolerance

Specified by:

eqZ in interface IVecI

eqX
```
public boolean eqX(IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in X with tolerance

Specified by:

eqX in interface IVecI

eqY
```
public boolean eqY(IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Y with tolerance

Specified by:

eqY in interface IVecI

eqZ
```
public boolean eqZ(IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Z with tolerance

Specified by:

eqZ in interface IVecI

eqX
```
public boolean eqX(ISwitchE e,
          IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in X with tolerance

Specified by:

eqX in interface IVecI

eqY
```
public boolean eqY(ISwitchE e,
          IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Y with tolerance

Specified by:

eqY in interface IVecI

eqZ
```
public boolean eqZ(ISwitchE e,
          IVecI v,
          double tolerance)
```
Description copied from interface: IVecI

check if same in Z with tolerance

Specified by:

eqZ in interface IVecI

eqX
```
public IBool eqX(ISwitchR r,
        IVecI v,
        IDoubleI tolerance)
```
Description copied from interface: IVecI

check if same in X with tolerance

Specified by:

eqX in interface IVecI

eqY
```
public IBool eqY(ISwitchR r,
        IVecI v,
        IDoubleI tolerance)
```
Description copied from interface: IVecI

check if same in Y with tolerance

Specified by:

eqY in interface IVecI

eqZ
```
public IBool eqZ(ISwitchR r,
        IVecI v,
        IDoubleI tolerance)
```
Description copied from interface: IVecI

check if same in Z with tolerance

Specified by:

eqZ in interface IVecI

angle
```
public double angle(IVec v)
```
angle in radian, ranging from 0 to Pi

angle

public double angle(double vx,
           double vy,
           double vz)

angle in radian, ranging from 0 to Pi

Specified by:: angle in interface IVecI

angle
```
public double angle(IVecI v)
```
angle in radian, ranging from 0 to Pi

Specified by:

angle in interface IVecI

angle
```
public double angle(ISwitchE e,
           IVecI v)
```
angle in radian, ranging from 0 to Pi

Specified by:

angle in interface IVecI

angle

public IDouble angle(ISwitchR r,
            IVecI v)

angle in radian, ranging from 0 to Pi

Specified by:: angle in interface IVecI

angle
```
public double angle(IVec v,
           IVec axis)
```
angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis. axis just define if it's positive angle or negative angle

angle
```
public double angle(double vx,
           double vy,
           double vz,
           double axisX,
           double axisY,
           double axisZ)
```
angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis. axis just define if it's positive angle or negative angle

Specified by:

angle in interface IVecI

Returns:
angle between two vector from -Pi to Pi. Sign follows right-handed screw rule along axis

angle
```
public double angle(IVecI v,
           IVecI axis)
```
angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis. axis just define if it's positive angle or negative angle

Specified by:

angle in interface IVecI

axis - axis to determin sign of angle following right-handed screw rule.

Returns:
angle between two vector from -Pi to Pi. Sign follows right-handed screw rule along axis

angle
```
public double angle(ISwitchE e,
           IVecI v,
           IVecI axis)
```
angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis. axis just define if it's positive angle or negative angle

Specified by:

angle in interface IVecI

axis - axis to determin sign of angle following right-handed screw rule.

Returns:
angle between two vector from -Pi to Pi. Sign follows right-handed screw rule along axis

angle
```
public IDouble angle(ISwitchR r,
            IVecI v,
            IVecI axis)
```
angle in radian, with reference axis to decide which is negative direction, ranging from -Pi to Pi angle is not measured on the plane of axis. axis just define if it's positive angle or negative angle

Specified by:

angle in interface IVecI

axis - axis to determin sign of angle following right-handed screw rule.

Returns:
angle between two vector from -Pi to Pi. Sign follows right-handed screw rule along axis

angleOnPlane

public double angleOnPlane(IVec v,
                  IVec planeDir)

angle of two vector on a specified plane

angleOnPlane

public double angleOnPlane(IVecI v,
                  IVecI planeDir)

angle of two vector on a specified plane

angleOnPlane

public double angleOnPlane(ISwitchE e,
                  IVecI v,
                  IVecI planeDir)

angle of two vector on a specified plane

angleOnPlane

public IDouble angleOnPlane(ISwitchR r,
                   IVecI v,
                   IVecI planeDir)

angle of two vector on a specified plane

angleOnPlane

public double angleOnPlane(IVec pt,
                  IVec planeCenter,
                  IVec planeDir)

angle of two points on a specified plane around the center

angleOnPlane

public double angleOnPlane(IVecI pt,
                  IVecI planeCenter,
                  IVecI planeDir)

angle of two points on a specified plane around the center

angleOnPlane

public double angleOnPlane(ISwitchE e,
                  IVecI pt,
                  IVecI planeCenter,
                  IVecI planeDir)

angle of two points on a specified plane around the center

angleOnPlane

public IDouble angleOnPlane(ISwitchR r,
                   IVecI pt,
                   IVecI planeCenter,
                   IVecI planeDir)

angle of two points on a specified plane around the center

rot

public IVec rot(IVec axis,
       double angle)

rotate the vector around the axis

rot

public IVec rot(double axisX,
       double axisY,
       double axisZ,
       double angle)

rotate the vector around the axis

Specified by:: rot in interface IVecI

rot
```
public IVec rot(IVecI axis,
       double angle)
```
Description copied from interface: IVecI

rotation around axis vector

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot
```
public IVec rot(IVecI axis,
       IDoubleI angle)
```
Description copied from interface: IVecI

rotation around axis vector

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot
```
public IVec rot(double angle)
```
rotation on xy-plane

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot
```
public IVec rot(IDoubleI angle)
```
rotation on xy-plane

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot

public IVec rot(IVec center,
       IVec axis,
       double angle)

rot

public IVec rot(double centerX,
       double centerY,
       double centerZ,
       double axisX,
       double axisY,
       double axisZ,
       double angle)

Description copied from interface: IVecI

rotation around axis vector and center point

Specified by:: rot in interface IVecI

rot
```
public IVec rot(IVecI center,
       IVecI axis,
       double angle)
```
Description copied from interface: IVecI

rotation around axis vector and center point

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot
```
public IVec rot(IVecI center,
       IVecI axis,
       IDoubleI angle)
```
Description copied from interface: IVecI

rotation around axis vector and center point

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot

public IVec rot(IVec axis,
       IVec destDir)

rotation around axis towards destination direction

rot
```
public IVec rot(IVecI axis,
       IVecI destDir)
```
rotation around axis towards destination direction

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot

public IVec rot(IVec center,
       IVec axis,
       IVec destPt)

rotation around axis and center towards destination point

rot
```
public IVec rot(IVecI center,
       IVecI axis,
       IVecI destPt)
```
rotation around axis and center towards destination point

Specified by:

rot in interface ITransformable

Specified by:

rot in interface IVecI

rot2
```
public IVec rot2(double angle)
```
rotation on xy-plane; alias of rot(double)

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

rot2
```
public IVec rot2(IDoubleI angle)
```
rotation on xy-plane; alias of rot(IDoubleI)

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

rot2

public IVec rot2(IVec center,
        double angle)

rotation on xy-plane

rot2

public IVec rot2(double centerX,
        double centerY,
        double angle)

rotation on xy-plane

Specified by:: rot2 in interface IVecI

rot2
```
public IVec rot2(IVecI center,
        double angle)
```
rotation on xy-plane

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

rot2
```
public IVec rot2(IVecI center,
        IDoubleI angle)
```
rotation on xy-plane

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

rot2
```
public IVec rot2(IVec destDir)
```
rotation on xy-plane towards destDir

rot2
```
public IVec rot2(IVecI destDir)
```
rotation on xy-plane towards destDir

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

rot2

public IVec rot2(IVec center,
        IVec destPt)

rotation on xy-plane towards destPt

rot2
```
public IVec rot2(IVecI center,
        IVecI destPt)
```
rotation on xy-plane towards destPt

Specified by:

rot2 in interface ITransformable

Specified by:

rot2 in interface IVecI

scale
```
public IVec scale(IDoubleI f)
```
alias of mul

Specified by:

scale in interface ITransformable

Specified by:

scale in interface IVecI

scale
```
public IVec scale(double f)
```
Description copied from interface: IVecI

alias of mul

Specified by:

scale in interface ITransformable

Specified by:

scale in interface IVecI

scale

public IVec scale(IVec center,
         double f)

scale from the center

scale

public IVec scale(double centerX,
         double centerY,
         double centerZ,
         double f)

scale from the center

Specified by:: scale in interface IVecI

scale
```
public IVec scale(IVecI center,
         double f)
```
scale from the center

Specified by:

scale in interface ITransformable

Specified by:

scale in interface IVecI

scale
```
public IVec scale(IVecI center,
         IDoubleI f)
```
scale from the center

Specified by:

scale in interface ITransformable

Specified by:

scale in interface IVecI

scale1d

public IVec scale1d(IVec axis,
           double f)

scale only in 1 direction

scale1d

public IVec scale1d(double axisX,
           double axisY,
           double axisZ,
           double f)

scale only in 1 direction

Specified by:: scale1d in interface IVecI

scale1d
```
public IVec scale1d(IVecI axis,
           double f)
```
scale only in 1 direction

Specified by:

scale1d in interface ITransformable

Specified by:

scale1d in interface IVecI

scale1d
```
public IVec scale1d(IVecI axis,
           IDoubleI f)
```
scale only in 1 direction

Specified by:

scale1d in interface ITransformable

Specified by:

scale1d in interface IVecI

scale1d

public IVec scale1d(IVec center,
           IVec axis,
           double f)

scale only in 1 direction

scale1d
```
public IVec scale1d(IVecI center,
           IVecI axis,
           double f)
```
scale only in 1 direction

Specified by:

scale1d in interface ITransformable

Specified by:

scale1d in interface IVecI

scale1d

public IVec scale1d(double centerX,
           double centerY,
           double centerZ,
           double axisX,
           double axisY,
           double axisZ,
           double f)

scale only in 1 direction

Specified by:: scale1d in interface IVecI

scale1d

public IVec scale1d(IVecI center,
           IVecI axis,
           IDoubleI f)

scale only in 1 direction

Specified by:: scale1d in interface ITransformable
Specified by:: scale1d in interface IVecI

ref
```
public IVec ref(IVec planeDir)
```
reflect (mirror) 3 dimensionally to the other side of the plane

ref
```
public IVec ref(double planeX,
       double planeY,
       double planeZ)
```
reflect (mirror) 3 dimensionally to the other side of the plane

Specified by:

ref in interface IVecI

ref
```
public IVec ref(IVecI planeDir)
```
reflect (mirror) 3 dimensionally to the other side of the plane

Specified by:

ref in interface ITransformable

Specified by:

ref in interface IVecI

ref
```
public IVec ref(IVec center,
       IVec planeDir)
```
reflect (mirror) 3 dimensionally to the other side of the plane at the center

ref

public IVec ref(double centerX,
       double centerY,
       double centerZ,
       double planeX,
       double planeY,
       double planeZ)

reflect (mirror) 3 dimensionally to the other side of the plane at the center

Specified by:: ref in interface IVecI

ref
```
public IVec ref(IVecI center,
       IVecI planeDir)
```
reflect (mirror) 3 dimensionally to the other side of the plane at the center

Specified by:

ref in interface ITransformable

Specified by:

ref in interface IVecI

mirror
```
public IVec mirror(IVec planeDir)
```
alias of ref

mirror

public IVec mirror(double planeX,
          double planeY,
          double planeZ)

alias of ref

Specified by:: mirror in interface IVecI

mirror
```
public IVec mirror(IVecI planeDir)
```
alias of ref

Specified by:

mirror in interface ITransformable

Specified by:

mirror in interface IVecI

mirror

public IVec mirror(IVec center,
          IVec planeDir)

alias of ref

mirror

public IVec mirror(double centerX,
          double centerY,
          double centerZ,
          double planeX,
          double planeY,
          double planeZ)

alias of ref

Specified by:: mirror in interface IVecI

mirror
```
public IVec mirror(IVecI center,
          IVecI planeDir)
```
alias of ref

Specified by:

mirror in interface ITransformable

Specified by:

mirror in interface IVecI

shear

public IVec shear(double sxy,
         double syx,
         double syz,
         double szy,
         double szx,
         double sxz)

Description copied from interface: IVecI

shear operation

Specified by:: shear in interface ITransformable
Specified by:: shear in interface IVecI

shear

public IVec shear(IDoubleI sxy,
         IDoubleI syx,
         IDoubleI syz,
         IDoubleI szy,
         IDoubleI szx,
         IDoubleI sxz)

Description copied from interface: IVecI

shear operation

Specified by:: shear in interface ITransformable
Specified by:: shear in interface IVecI

shear

public IVec shear(IVecI center,
         double sxy,
         double syx,
         double syz,
         double szy,
         double szx,
         double sxz)

Description copied from interface: IVecI

shear operation

Specified by:: shear in interface ITransformable
Specified by:: shear in interface IVecI

shear

public IVec shear(IVecI center,
         IDoubleI sxy,
         IDoubleI syx,
         IDoubleI syz,
         IDoubleI szy,
         IDoubleI szx,
         IDoubleI sxz)

Description copied from interface: IVecI

shear operation

Specified by:: shear in interface ITransformable
Specified by:: shear in interface IVecI

shearXY
```
public IVec shearXY(double sxy,
           double syx)
```
Description copied from interface: IVecI

shear operation on XY

Specified by:

shearXY in interface ITransformable

Specified by:

shearXY in interface IVecI

shearXY
```
public IVec shearXY(IDoubleI sxy,
           IDoubleI syx)
```
Description copied from interface: IVecI

shear operation on XY

Specified by:

shearXY in interface ITransformable

Specified by:

shearXY in interface IVecI

shearXY
```
public IVec shearXY(IVecI center,
           double sxy,
           double syx)
```
Description copied from interface: IVecI

shear operation on XY

Specified by:

shearXY in interface ITransformable

Specified by:

shearXY in interface IVecI

shearXY
```
public IVec shearXY(IVecI center,
           IDoubleI sxy,
           IDoubleI syx)
```
Description copied from interface: IVecI

shear operation on XY

Specified by:

shearXY in interface ITransformable

Specified by:

shearXY in interface IVecI

shearYZ
```
public IVec shearYZ(double syz,
           double szy)
```
Description copied from interface: IVecI

shear operation on YZ

Specified by:

shearYZ in interface ITransformable

Specified by:

shearYZ in interface IVecI

shearYZ
```
public IVec shearYZ(IDoubleI syz,
           IDoubleI szy)
```
Description copied from interface: IVecI

shear operation on YZ

Specified by:

shearYZ in interface ITransformable

Specified by:

shearYZ in interface IVecI

shearYZ
```
public IVec shearYZ(IVecI center,
           double syz,
           double szy)
```
Description copied from interface: IVecI

shear operation on YZ

Specified by:

shearYZ in interface ITransformable

Specified by:

shearYZ in interface IVecI

shearYZ
```
public IVec shearYZ(IVecI center,
           IDoubleI syz,
           IDoubleI szy)
```
Description copied from interface: IVecI

shear operation on YZ

Specified by:

shearYZ in interface ITransformable

Specified by:

shearYZ in interface IVecI

shearZX
```
public IVec shearZX(double szx,
           double sxz)
```
Description copied from interface: IVecI

shear operation on ZX

Specified by:

shearZX in interface ITransformable

Specified by:

shearZX in interface IVecI

shearZX
```
public IVec shearZX(IDoubleI szx,
           IDoubleI sxz)
```
Description copied from interface: IVecI

shear operation on ZX

Specified by:

shearZX in interface ITransformable

Specified by:

shearZX in interface IVecI

shearZX
```
public IVec shearZX(IVecI center,
           double szx,
           double sxz)
```
Description copied from interface: IVecI

shear operation on ZX

Specified by:

shearZX in interface ITransformable

Specified by:

shearZX in interface IVecI

shearZX
```
public IVec shearZX(IVecI center,
           IDoubleI szx,
           IDoubleI sxz)
```
Description copied from interface: IVecI

shear operation on ZX

Specified by:

shearZX in interface ITransformable

Specified by:

shearZX in interface IVecI

translate
```
public IVec translate(double x,
             double y,
             double z)
```
Description copied from interface: IVecI

alias of add()

Specified by:

translate in interface ITransformable

Specified by:

translate in interface IVecI

translate
```
public IVec translate(IDoubleI x,
             IDoubleI y,
             IDoubleI z)
```
Description copied from interface: IVecI

alias of add()

Specified by:

translate in interface ITransformable

Specified by:

translate in interface IVecI

translate
```
public IVec translate(IVecI v)
```
Description copied from interface: IVecI

alias of add()

Specified by:

translate in interface ITransformable

Specified by:

translate in interface IVecI

transform
```
public IVec transform(IMatrix3I mat)
```
Description copied from interface: IVecI

transform with a transformation matrix

Specified by:

transform in interface ITransformable

Specified by:

transform in interface IVecI

transform
```
public IVec transform(IMatrix4I mat)
```
Description copied from interface: IVecI

transform with a transformation matrix

Specified by:

transform in interface ITransformable

Specified by:

transform in interface IVecI

transform

public IVec transform(IVec xvec,
             IVec yvec,
             IVec zvec)

transform
```
public IVec transform(IVecI xvec,
             IVecI yvec,
             IVecI zvec)
```
Description copied from interface: IVecI

transform with a transformation vectors

Specified by:

transform in interface ITransformable

Specified by:

transform in interface IVecI

transform

public IVec transform(IVec xvec,
             IVec yvec,
             IVec zvec,
             IVec translate)

transform
```
public IVec transform(IVecI xvec,
             IVecI yvec,
             IVecI zvec,
             IVecI translate)
```
Description copied from interface: IVecI

transform with a transformation vectors

Specified by:

transform in interface ITransformable

Specified by:

transform in interface IVecI

mv
```
public IVec mv(double vx,
      double vy,
      double vz)
```
mv() is alias of add()

Specified by:

mv in interface ITransformable

Specified by:

mv in interface IVecI

mv
```
public IVec mv(IDoubleI vx,
      IDoubleI vy,
      IDoubleI vz)
```
Description copied from interface: IVecI

mv() is alias of add()

Specified by:

mv in interface ITransformable

Specified by:

mv in interface IVecI

mv
```
public IVec mv(IVecI v)
```
Description copied from interface: IVecI

mv() is alias of add()

Specified by:

mv in interface ITransformable

Specified by:

mv in interface IVecI

cp
```
public IVec cp()
```
cp() is alias of dup()

Specified by:

cp in interface IArithmeticVal<IVecI,IDoubleI>

Specified by:

cp in interface ITransformable

Specified by:

cp in interface IVecI

cp
```
public IVec cp(IVec v)
```
cp() is alias of dup().add()

cp
```
public IVec cp(double vx,
      double vy,
      double vz)
```
Description copied from interface: IVecI

cp() is alias of dup().add()

Specified by:

cp in interface ITransformable

Specified by:

cp in interface IVecI

cp
```
public IVec cp(IDoubleI vx,
      IDoubleI vy,
      IDoubleI vz)
```
Description copied from interface: IVecI

cp() is alias of dup().add()

Specified by:

cp in interface ITransformable

Specified by:

cp in interface IVecI

cp
```
public IVec cp(IVecI v)
```
Description copied from interface: IVecI

cp() is alias of dup().add()

Specified by:

cp in interface ITransformable

Specified by:

cp in interface IVecI

dif
```
public IVec dif(IVec v)
```
create a new instance of difference

dif

public IVec dif(double vx,
       double vy,
       double vz)

create a new instance of difference

Specified by:: dif in interface IVecI

dif
```
public IVec dif(IVecI v)
```
create a new instance of difference

Specified by:

dif in interface IVecI

diff
```
public IVec diff(IVec v)
```
create a new instance of difference

diff

public IVec diff(double vx,
        double vy,
        double vz)

create a new instance of difference

Specified by:: diff in interface IVecI

diff
```
public IVec diff(IVecI v)
```
create a new instance of difference

Specified by:

diff in interface IVecI

mid
```
public IVec mid(IVec v)
```
create a new instance of midpoint

mid

public IVec mid(double vx,
       double vy,
       double vz)

create a new instance of midpoint

Specified by:: mid in interface IVecI

mid
```
public IVec mid(IVecI v)
```
create a new instance of midpoint

Specified by:

mid in interface IVecI

sum
```
public IVec sum(IVec v)
```
create a new instance of summation

sum

public IVec sum(double vx,
       double vy,
       double vz)

create a new instance of summation

Specified by:: sum in interface IVecI

sum
```
public IVec sum(IVecI v)
```
create a new instance of summation

Specified by:

sum in interface IVecI

sum
```
public IVec sum(IVec... v)
```
create a new instance of summation

sum
```
public IVec sum(IVecI... v)
```
create a new instance of summation

Specified by:

sum in interface IVecI

bisect
```
public IVec bisect(IVec v)
```
create a new instance of bisector

bisect

public IVec bisect(double vx,
          double vy,
          double vz)

create a new instance of bisector

Specified by:: bisect in interface IVecI

bisect
```
public IVec bisect(IVecI v)
```
create a new instance of bisector

Specified by:

bisect in interface IVecI

sum

public IVec sum(IVec v2,
       double w1,
       double w2)

create a new instance of weighted summation

sum

public IVec sum(IVec v2,
       double w2)

create a new instance of weighted summation

sum
```
public IVec sum(IVecI v2,
       double w1,
       double w2)
```
create a new instance of weighted summation

Specified by:

sum in interface IVecI

sum
```
public IVec sum(IVecI v2,
       double w2)
```
create a new instance of weighted summation

Specified by:

sum in interface IVecI

sum

public IVec sum(IVecI v2,
       IDoubleI w1,
       IDoubleI w2)

create a new instance of weighted summation

Specified by:: sum in interface IVecI

sum
```
public IVec sum(IVecI v2,
       IDoubleI w2)
```
create a new instance of weighted summation

Specified by:

sum in interface IVecI

isValid
```
public boolean isValid()
```
checking x, y, and z is valid number (not Infinite, nor NaN).

Specified by:

isValid in interface IVecI

toString
```
public java.lang.String toString()
```
Overrides:

toString in class java.lang.Object

isParallel
```
public boolean isParallel(IVecI v)
```

isParallel

public boolean isParallel(IVecI v,
                 double angleTolerance)

isPerpendicular

public boolean isPerpendicular(IVecI v)

isPerpendicular

public boolean isPerpendicular(IVecI v,
                      double angleTolerance)

isStraight

public boolean isStraight(IVecI v1,
                 IVecI v2)

isStraight

public boolean isStraight(IVecI v1,
                 IVecI v2,
                 double tolerance)

isOnLine

public boolean isOnLine(IVecI v1,
               IVecI v2)

determine if it's on & inside the line

isOnLine

public boolean isOnLine(IVecI v1,
               IVecI v2,
               double tolerance)

determine if it's on & inside the line

isOnSegment

public boolean isOnSegment(IVecI v1,
                  IVecI v2)

alias of isOnLine

isOnSegment

public boolean isOnSegment(IVecI v1,
                  IVecI v2,
                  double tolerance)

alias of isOnLine

isInside2d

public boolean isInside2d(IVecI[] pts)

isInside2d

public boolean isInside2d(IVec2I[] pts)

isInside2d

public boolean isInside2d(IVecI projectionDir,
                 IVecI[] pts)

isInside2d

public boolean isInside2d(IVecI projectionDir,
                 IVec2I[] pts)

isInsideTriangle

public boolean isInsideTriangle(IVecI pt1,
                       IVecI pt2,
                       IVecI pt3)

nml
```
public IVec nml(IVecI v)
```
alias of cross. (not unitized)

Specified by:

nml in interface IVecI

nml
```
public IVec nml(IVec v)
```
alias of cross. (not unitized)

nml

public IVec nml(double vx,
       double vy,
       double vz)

alias of cross. (not unitized)

Specified by:: nml in interface IVecI

nml
```
public IVec nml(IVecI pt1,
       IVecI pt2)
```
create normal vector from 3 points of self, pt1 and pt2 (not unitized)

Specified by:

nml in interface IVecI

nml
```
public IVec nml(IVec pt1,
       IVec pt2)
```
create normal vector from 3 points of self, pt1 and pt2 (not unitized)

nml

public IVec nml(double vx1,
       double vy1,
       double vz1,
       double vx2,
       double vy2,
       double vz2)

create normal vector from 3 points of self, pt1 and pt2 (not unitized)

Specified by:: nml in interface IVecI

nml

public static IVecI nml(IVecI pt1,
        IVecI pt2,
        IVecI pt3)

create normal vector from 3 points

nml

public static IVec nml(IVec pt1,
       IVec pt2,
       IVec pt3)

create normal vector from 3 points

nml

public static IVec nml(double vx1,
       double vy1,
       double vz1,
       double vx2,
       double vy2,
       double vz2,
       double vx3,
       double vy3,
       double vz3)

create normal vector from 3 points

getNormal

public static IVecI getNormal(IVecI pt1,
              IVecI pt2,
              IVecI pt3)

create normal vector from 3 points

getNormal

public static IVec getNormal(IVec pt1,
             IVec pt2,
             IVec pt3)

create normal vector from 3 points

getNormal

public static IVec getNormal(double vx1,
             double vy1,
             double vz1,
             double vx2,
             double vy2,
             double vz2,
             double vx3,
             double vy3,
             double vz3)

getNormal

public IVecI getNormal(IVecI pt2,
              IVecI pt3)

alias of nml

getNormal

public IVec getNormal(IVec pt2,
             IVec pt3)

alias of nml

projectToPlane

public IVec projectToPlane(IVecI planeNormal)

project a vector onto a plane at origin

projectToPlane

public IVec projectToPlane(IVecI projectDir,
                  IVecI planeNormal)

project a vector onto a plane at origin towards a specified direction

projectToPlane

public IVec projectToPlane(IVecI projectDir,
                  IVecI planeNormal,
                  IVecI planePoint)

project a point onto a plane at planePoint towards a specified direction

projectToTriangle

public IVec projectToTriangle(IVecI pt1,
                     IVecI pt2,
                     IVecI pt3)

projectToLine

public IVec projectToLine(IVecI linePt,
                 IVecI lineDir)

project to an infinite line. the vector changes itself.

projectToSegment

public IVec projectToSegment(IVecI linePt1,
                    IVecI linePt2)

project to a line segment. this project itself

projectTo2Vec
```
public double[] projectTo2Vec(IVecI v1,
                     IVecI v2)
```
project the vector to the plane defined by two input vector and decompose vector to two vector and another perpendicular vector and returns coefficient of them. relationship of them is like below. this = return[0] * v1 + return[1] * v2 + return[2] * v1.cross(v2);

Returns:
array of three double number, first is coefficient of uvec, second is of vvec and third is of uvec.cross(vvec)

projectToVec
```
public double projectToVec(IVecI v)
```
project this vector to the input vector and returns projection coefficient.

Parameters:
v - a vector for this vector to project on.

decompose
```
public IVec[] decompose(IVecI uaxis,
               IVecI vaxis)
```
decompose the vector to two input vectors and another perpendicular vector of those two and returns three decomposed vector. the vector itself doensn't change. this = return[0] + return[1] + return[2];

Returns:
array of three decomposed vectors

distToLine

public double distToLine(IVecI lineDir,
                IVecI linePt)

distance to an infinite line

distToLine

public double distToLine(IVecI lineDir)

distance to a line dir

distToSegment

public double distToSegment(IVecI linePt1,
                   IVecI linePt2)

distance to a line segment

ratioOnSegment
```
public double ratioOnSegment(IVecI linePt1,
                    IVecI linePt2)
```
ratio of projected point between two points (line segment). 0.0 is at linePt1, 1.0 is at linePt2.

distToPlane

public double distToPlane(IVecI planeDir,
                 IVecI planePt)

distance to a plane

distToTriangle

public double distToTriangle(IVecI pt1,
                    IVecI pt2,
                    IVecI pt3)

distance to a triangle

perpendicularVecToLine

public IVec perpendicularVecToLine(IVecI lineDir,
                          IVecI linePt)

create a new vector from this point to the line in parpendicular direction.

perpendicularVecToLine
```
public IVec perpendicularVecToLine(IVecI lineDir)
```
create a new vector from line to this point perpendicular to the line dir

isOnPlane

public boolean isOnPlane(IVecI planePt1,
                IVecI planePt2,
                IVecI planePt3)

isOnPlane

public boolean isOnPlane(IVecI planeDir,
                IVecI planePt)

isOnPlane

public boolean isOnPlane(IVecI planePt1,
                IVecI planePt2,
                IVecI planePt3,
                double tolerance)

isOnPlane

public boolean isOnPlane(IVecI planeDir,
                IVecI planePt,
                double tolerance)

isOnTriangle

public boolean isOnTriangle(IVecI pt1,
                   IVecI pt2,
                   IVecI pt3,
                   double tolerance)

isOnTriangle

public boolean isOnTriangle(IVecI pt1,
                   IVecI pt2,
                   IVecI pt3)

show
```
public IVectorObject show(IVecI root)
```
visualize a vector as an arrow.

Parameters:
root - A root position of the arrow.

show
```
public IVectorObject show()
```
visualize a vector as an arrow. The root position of the arrow is the origin.

show
```
public IVectorObject show(IServerI s,
                 IVecI root)
```
visualize a vector as an arrow.

Parameters:
s - A server to store the object.
root - A root position of the arrow.

show
```
public IVectorObject show(IServerI s)
```
visualize a vector as an arrow. The root position of the arrow is the origin.

Parameters:
s - A server to store the object.

isStraight

public static boolean isStraight(IVecI[] pts,
                 double tolerance)

static methods

isStraight

public static boolean isStraight(IVecI[] pts)

isFlat

public static boolean isFlat(IVecI pt1,
             IVecI pt2,
             IVecI pt3,
             IVecI pt4)

isFlat

public static boolean isFlat(IVecI pt1,
             IVecI pt2,
             IVecI pt3,
             IVecI pt4,
             double tolerance)

isFlat

public static boolean isFlat(IVecI[] pts)

isFlat

public static boolean isFlat(IVecI[] pts,
             double tolerance)

isArrayEqual

public static boolean isArrayEqual(IVec[] pts1,
                   IVec[] pts2,
                   boolean cyclic,
                   boolean reverse)

isArrayEqual

public static boolean isArrayEqual(IVec[] pts1,
                   IVec[] pts2,
                   boolean cyclic,
                   boolean reverse,
                   double tolerance)

averageNormal
```
public static IVec averageNormal(IVecI[] pts)
```
average normal of point array in form of a polyline. It return IVec, not IVecI. (Should it return IVecI?)

averageNormal
```
public static IVec averageNormal(IVecI[][] pts)
```
average normal of point array in form of a matrix. It return IVec, not IVecI. (Should it return IVecI?)

center

public static IVec center(IVecI... v)

calculating centetr of multiple points

circumcenter

public static IVec circumcenter(IVecI pt1,
                IVecI pt2,
                IVecI pt3)

calculate circumcenter; center of circumcircle

area

public static double area(IVecI pt1,
          IVecI pt2,
          IVecI pt3)

area of a triangle

toIVecArray

public static IVec[] toIVecArray(IVecI[] array)

offsetNormal

public static IVecI[] offsetNormal(IVecI[] pts,
                   int ptNum,
                   boolean close)

offset
```
public static IVecI[] offset(IVecI[] pts,
             double width)
```
offset without normal vector. normal vectors are automatically generated

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width)

offset

public static IVecI[] offset(IVecI[] pts,
             double width,
             boolean closed)

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width,
             boolean closed)

offset

public static IVec[] offset(IVec[] pts,
            double width)

offset

public static IVec[] offset(IVec[] pts,
            double width,
            boolean closed)

offset

public static IVecI[] offset(IVecI[] pts,
             double width,
             IVecI planeNormal)

offset with one normal vector

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width,
             IVecI planeNormal)

offset

public static IVecI[] offset(IVecI[] pts,
             double width,
             IVecI planeNormal,
             boolean closed)

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width,
             IVecI planeNormal,
             boolean closed)

offset

public static IVec[] offset(IVec[] pts,
            double width,
            IVecI planeNormal)

offset

public static IVec[] offset(IVec[] pts,
            double width,
            IVecI planeNormal,
            boolean closed)

offset

public static IVecI[] offset(IVecI[] pts,
             double width,
             IVecI[] normals)

offset with array of normal vectors

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width,
             IVecI[] normals)

offset

public static IVecI[] offset(IVecI[] pts,
             double width,
             IVecI[] normals,
             boolean closed)

offset

public static IVecI[] offset(IVecI[] pts,
             IDoubleI width,
             IVecI[] normals,
             boolean closed)

offset

public static IVec[] offset(IVec[] pts,
            double width,
            IVecI[] normals)

offset

public static IVec[] offset(IVec[] pts,
            double width,
            IVecI[] normals,
            boolean closed)

offset
```
public static IVecI[] offset(IVecI[] pts,
             int ptNum,
             int returnNum,
             double width,
             IVecI[] normals,
             boolean closed)
```
offset points

Parameters:
pts - points to be offset
ptNum - point num to be offset (equals to pts.length or less)
returnNum - return array length (cannot be less than ptNum; when more than ptNum, the remaining is filled with null )
width - offset width
normals - normal vector at each point (number can be less than ptNum; if so, the last member is used for the rest). if normals is null, it's automatically set by offsetNormal method
closed - closed polyline or not

offset
```
public static IVecI[] offset(IVecI[] pts,
             int ptNum,
             int returnNum,
             IDoubleI width,
             IVecI[] normals,
             boolean closed)
```
offset points

Parameters:
pts - points to be offset
ptNum - point num to be offset (equals to pts.length or less)
returnNum - return array length (cannot be less than ptNum; when more than ptNum, the remaining is filled with null )
width - offset width
normals - normal vector at each point (number can be less than ptNum; if so, the last member is used for the rest)
closed - closed polyline or not

projectToPlane

public static IVecI projectToPlane(IVecI pt,
                   IVecI projectDir,
                   IVecI planeNormal,
                   IVecI planePt)

project point a plane. input IVecI point pt is changed. doing same thing with projectToPlane(IVecI,IVecI,IVecI) but this is for IVecI.

projectToPlane

public static void projectToPlane(IVecI[] pts,
                  IVecI projectDir,
                  IVecI planeNormal,
                  IVecI planePt)

project point array to a plane. input points are changed.

projectToPlane

public static void projectToPlane(IVecI[][] pts,
                  IVecI projectDir,
                  IVecI planeNormal,
                  IVecI planePt)

project point array to a plane. input points are changed.

projectToPlane

public static void projectToPlane(IVecI[] pts,
                  IVecI planeNormal,
                  IVecI planePt)

project point array to a plane. input points are changed.

projectToPlane

public static void projectToPlane(IVecI[][] pts,
                  IVecI planeNormal,
                  IVecI planePt)

project point array to a plane. input points are changed.

projectToPlane
```
public static void projectToPlane(IVecI[] pts,
                  IVecI planeNormal)
```
project point array to a plane. input points are changed. projection plane point is the first element in the array. (should it be center?)

projectToPlane
```
public static void projectToPlane(IVecI[][] pts,
                  IVecI planeNormal)
```
project point array to a plane. input points are changed. projection plane point is the first element in the array. (should it be center?)

projectToPlane
```
public static void projectToPlane(IVecI[] pts)
```
project point array to a plane. input points are changed. projection plane normal is average normal of pts. projection plane point is the first element in the array. (should it be center?)

projectToPlane
```
public static void projectToPlane(IVecI[][] pts)
```
project point array to a plane. input points are changed. projection plane normal is average normal of pts. projection plane point is the first element in the array. (should it be center?)

intersect

public static IVec intersect(IVecI line1Pt1,
             IVecI line1Pt2,
             IVecI line2Pt1,
             IVecI line2Pt2)

intersection of two infinite lines.

intersect

public static IVec intersect(IVecI line1Pt1,
             IVecI line1Pt2,
             IVecI line2Pt1,
             IVecI line2Pt2,
             double tolerance)

intersection of two infinite lines.

intersect

public static IVec intersect(IVec line1Pt1,
             IVec line1Pt2,
             IVec line2Pt1,
             IVec line2Pt2)

intersection of two infinite lines.

intersect
```
public static IVec intersect(IVec line1Pt1,
             IVec line1Pt2,
             IVec line2Pt1,
             IVec line2Pt2,
             double tolerance)
```
intersection of two infinite lines. If two lines are skew and 4 points are not on the same plane and the gap is less than tolerance, intersection points is projected onto the line. If the gap is too big or lines are parallel, it returns null. If tolerance is negative, it accepts any gap of two lines and returns a close point on one line.

Returns:
intersection point or null if it cannot find intersection