IVec2

java.lang.Object
- igeo.IParameterObject
- - igeo.IVec2

All Implemented Interfaces:

IArithmeticVal<IVec2I,IDoubleI>, IEntityParameter, IParameter, ISubobject, IVal, IVec2I, IVec2Op
```
public class IVec2
extends IParameterObject
implements IVec2I, IEntityParameter
```
Class of 2 dimensional vector.

Author:

Satoru Sugihara

Field Summary

Fields
Modifier and Type Field and Description

double x

static IVec2 xaxis

double y

static IVec2 yaxis
- Fields inherited from class igeo.IParameterObject
  parent

Fields
Modifier and Type	Field and Description
`double`	`x`
`static IVec2`	`xaxis`
`double`	`y`
`static IVec2`	`yaxis`

Constructor Summary

Constructors
Constructor and Description
`IVec2()`
`IVec2(double x, double y)`
`IVec2(IDoubleI x, IDoubleI y)`
`IVec2(IServerI s)`
`IVec2(IServerI s, double x, double y)`
`IVec2(IServerI s, IDoubleI x, IDoubleI y)`
`IVec2(IServerI s, IVec2 v)`
`IVec2(IServerI s, IVec2I v)`
`IVec2(IServerI s, IVecI v)`
`IVec2(IServerI s, IVecI v, IVecI projectionDir)`
`IVec2(IServerI s, IVecI v, IVecI xaxis, IVecI yaxis)`
`IVec2(IServerI s, IVecI v, IVecI xaxis, IVecI yaxis, IVecI origin)`
`IVec2(IVec2 v)`
`IVec2(IVec2I v)`
`IVec2(IVecI v)`
`IVec2(IVecI v, IVecI projectionDir)`
`IVec2(IVecI v, IVecI xaxis, IVecI yaxis)`
`IVec2(IVecI v, IVecI xaxis, IVecI yaxis, IVecI origin)`

Method Summary

Methods
Modifier and Type	Method and Description
`IVec2`	`add(double x, double y)`
`IVec2`	`add(double f, IVec2 v)` scale add; alias
`IVec2`	`add(double f, IVec2I v)` scale add; alias
`IVec2`	`add(IDoubleI x, IDoubleI y)`
`IVec2`	`add(IDoubleI f, IVec2I v)` scale add; alias
`IVec2`	`add(IVec2 v)`
`IVec2`	`add(IVec2 v, double f)` scale add
`IVec2`	`add(IVec2I v)`
`IVec2`	`add(IVec2I v, double f)` scale add
`IVec2`	`add(IVec2I v, IDoubleI f)` scale add
`double`	`angle(double vx, double vy)` angle between two vectors
`double`	`angle(ISwitchE e, IVec2I v)` angle between two vectors
`IDouble`	`angle(ISwitchR r, IVec2I v)` angle between two vectors
`double`	`angle(IVec2 v)`
`double`	`angle(IVec2I v)` angle between two vectors
`static double`	`area(IVec2[] pts)`
`IVec2`	`bisect(double vx, double vy)` create a new instance of bisector
`IVec2`	`bisect(IVec2 v)` create a new instance of bisector
`IVec2`	`bisect(IVec2I v)` create a new instance of bisector
`static boolean`	`clockwise(IVec2[] pts)` Check if polyline loop defined by the point array is clockwise or not.
`static boolean`	`counterclockwise(IVec2[] pts)` Check if polyline loop defined by the point array is counterclockwise or not.
`IVec2`	`cp()` cp() is alias of dup()
`IVec2`	`cp(double x, double y)` cp() is alias of dup().add()
`IVec2`	`cp(IDoubleI x, IDoubleI y)` cp() is alias of dup().add()
`IVec2`	`cp(IVec2 v)` cp() is alias of dup().add()
`IVec2`	`cp(IVec2I v)` cp() is alias of dup().add()
`IVec`	`cross(double vx, double vy)` cross product in z direction as IVec
`IVec`	`cross(IVec2 v)` cross product in z direction as IVec
`IVec`	`cross(IVec2I v)` cross product in z direction as IVec
`IVec2`	`dif(double vx, double vy)` create a new instance of difference
`IVec2`	`dif(IVec2 v)` create a new instance of difference
`IVec2`	`dif(IVec2I v)` create a new instance of difference
`IVec2`	`diff(double vx, double vy)` alias of dif
`IVec2`	`diff(IVec2 v)` alias of dif
`IVec2`	`diff(IVec2I v)` alias of dif
`double`	`dist(double vx, double vy)` distance of two vectors
`double`	`dist(ISwitchE e, IVec2I v)` distance of two vectors
`IDouble`	`dist(ISwitchR r, IVec2I v)` distance of two vectors
`double`	`dist(IVec2 v)` distance of two vectors
`double`	`dist(IVec2I v)` distance of two vectors
`double`	`dist2(double vx, double vy)` squared distance of two vectors
`double`	`dist2(ISwitchE e, IVec2I v)` squared distance of two vectors
`IDouble`	`dist2(ISwitchR r, IVec2I v)` squared distance of two vectors
`double`	`dist2(IVec2 v)` squared distance of two vectors
`double`	`dist2(IVec2I v)` squared distance of two vectors
`double`	`distToLine(IVec2I lineDir)` distance to a line dir
`double`	`distToLine(IVec2I lineDir, IVec2I linePt)` distance to an infinite line
`double`	`distToLine(IVec2 pt1, IVec2 pt2)` distance to an infinite line issue: there is another distToLine(IVecI lineDir,IVecI linePt) method
`double`	`distToSegment(IVec2I linePt1, IVec2I linePt2)` distance to a line segment
`double`	`distToTriangle(IVec2I pt1, IVec2I pt2, IVec2I pt3)` distance to a triangle
`IVec2`	`div(double x)`
`IVec2`	`div(IDouble v)`
`IVec2`	`div(IDoubleI v)`
`double`	`dot(double vx, double vy)` dot product
`double`	`dot(ISwitchE e, IVec2I v)` dot product
`IDouble`	`dot(ISwitchR r, IVec2I v)` dot product
`double`	`dot(IVec2 v)` dot product
`double`	`dot(IVec2I v)` dot product
`IVec2`	`dup()`
`boolean`	`eq(double vx, double vy)` whether location is same or not
`boolean`	`eq(double vx, double vy, double tolerance)` whether location is same or not within tolerance
`boolean`	`eq(ISwitchE e, IVec2I v)` whether location is same or not
`boolean`	`eq(ISwitchE e, IVec2I v, double tolerance)` whether location is same or not within tolerance
`IBool`	`eq(ISwitchR r, IVec2I v)` whether location is same or not
`IBool`	`eq(ISwitchR r, IVec2I v, IDoubleI tolerance)` whether location is same or not within tolerance
`boolean`	`eq(IVec2 v)` whether location is same or not
`boolean`	`eq(IVec2 v, double tolerance)` whether location is same or not within tolerance
`boolean`	`eq(IVec2I v)` whether location is same or not
`boolean`	`eq(IVec2I v, double tolerance)` whether location is same or not within tolerance
`boolean`	`eqX(double vx)` check if same in X
`boolean`	`eqX(double vx, double tolerance)` check if same in X within tolerance
`boolean`	`eqX(ISwitchE e, IVec2I v)` check if same in X
`boolean`	`eqX(ISwitchE e, IVec2I v, double tolerance)` check if same in X within tolerance
`IBool`	`eqX(ISwitchR r, IVec2I v)` check if same in X
`IBool`	`eqX(ISwitchR r, IVec2I v, IDoubleI tolerance)` check if same in X within tolerance
`boolean`	`eqX(IVec2 v)` check if same in X
`boolean`	`eqX(IVec2 v, double tolerance)` check if same in X within tolerance
`boolean`	`eqX(IVec2I v)` check if same in X
`boolean`	`eqX(IVec2I v, double tolerance)` check if same in X within tolerance
`boolean`	`eqY(double vy)` check if same in Y
`boolean`	`eqY(double vy, double tolerance)` check if same in Y within tolerance
`boolean`	`eqY(ISwitchE e, IVec2I v)` check if same in Y
`boolean`	`eqY(ISwitchE e, IVec2I v, double tolerance)` check if same in Y within tolerance
`IBool`	`eqY(ISwitchR r, IVec2I v)` check if same in Y
`IBool`	`eqY(ISwitchR r, IVec2I v, IDoubleI tolerance)` check if same in Y within tolerance
`boolean`	`eqY(IVec2 v)` check if same in Y
`boolean`	`eqY(IVec2 v, double tolerance)` check if same in Y within tolerance
`boolean`	`eqY(IVec2I v)` check if same in Y
`boolean`	`eqY(IVec2I v, double tolerance)` check if same in Y within tolerance
`IVec2`	`flip()` alias of neg
`IVec2`	`get()`
`IDouble`	`getX()`
`IDouble`	`getY()`
`static IVec2`	`intersect(IVec2I pt1, IVec2I dir1, IVec2I pt2, IVec2I dir2)` intersection of two infinite lines
`static IVec2[]`	`intersectLineAndCircle(IVec2I linePt, IVec2I lineDir, IVec2I circleCenter, double radius)` intersection of an infinite line and a circle
`static IVec2`	`intersectPolygon(IVec2I p1, IVec2I p2, IVec2I[] pts)`
`static IVec2`	`intersectPolyline(IVec2I p1, IVec2I p2, IVec2I[] pts)`
`static IVec2`	`intersectPolyline(IVec2I p1, IVec2I p2, IVec2I[] pts, boolean closed)`
`static IVec2`	`intersectSegment(IVec2I line1pt1, IVec2I line1pt2, IVec2I line2pt1, IVec2I line2pt2)`
`static IVec2`	`intersectSegmentAndXLine(IVec2I linePt1, IVec2I linePt2, double y)`
`static IVec2`	`intersectSegmentAndYLine(IVec2I linePt1, IVec2I linePt2, double x)`
`static IVec2`	`intersectXLine(IVec2 linePt, IVec2 lineDir, double yOfXLine)`
`static IVec2`	`intersectYLine(IVec2 linePt, IVec2 lineDir, double xOfYLine)`
`boolean`	`isBetween(IVec2I pt1, IVec2I pt2)`
`boolean`	`isInside(IVec2[] pts)` determine if the point is insde the polygon defined by the argument true if the point is on the edge of polygon
`boolean`	`isInside(IVec2I[] pts)` determine if the point is insde the polygon defined by the argument
`boolean`	`isOnLine(IVec2 pt1, IVec2 pt2)`
`boolean`	`isOnSegment(IVec2I pt1, IVec2I pt2)`
`boolean`	`isParallel(IVec2I v)` check if two vectors are parallel
`boolean`	`isParallel(IVec2I v, double angleReso)` check if two vectors are parallel
`boolean`	`isStraight(IVec2I v1, IVec2I v2)` check if three locations are on straight line
`boolean`	`isStraight(IVec2I v1, IVec2I v2, double angleReso)` check if three locations are on straight line
`boolean`	`isValid()` checking x, y is valid number (not Infinite, nor NaN).
`double`	`len()` getting length
`IVec2`	`len(double l)` setting length
`IVec2`	`len(IDoubleI l)` setting length
`double`	`len(ISwitchE e)` getting length
`IDouble`	`len(ISwitchR r)` getting length
`double`	`len2()` return squared length of the vector in double
`double`	`len2(ISwitchE e)` return squared length of the vector in double
`IDouble`	`len2(ISwitchR r)` return squared length of the vector in double
`static boolean`	`loopdir(IVec2[] pts)` true if polyline loop defined by the point array is counter-clockwise.
`IVec2`	`mid(double vx, double vy)` create a new instance of midpoint
`IVec2`	`mid(IVec2 v)` create a new instance of midpoint
`IVec2`	`mid(IVec2I v)` create a new instance of midpoint
`IVec2`	`mirror(double lineX, double lineY)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`mirror(double linePtX, double linePtY, double lineDirX, double lineDirY)` reflect (mirror) 2 dimensionally to the other side of the line at line point
`IVec2`	`mirror(IVec2 lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`mirror(IVec2I lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`mirror(IVec2I linePt, IVec2I lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`mirror(IVec2 linePt, IVec2 lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`mul(double x)`
`IVec2`	`mul(IDouble v)`
`IVec2`	`mul(IDoubleI v)`
`IVec2`	`mv(double x, double y)` mv() is alias of add()
`IVec2`	`mv(IDoubleI x, IDoubleI y)` mv() is alias of add()
`IVec2`	`mv(IVec2 v)` mv() is alias of add()
`IVec2`	`mv(IVec2I v)` mv() is alias of add()
`IVec2`	`neg()`
`IVecI`	`nml(double vx, double vy)` alias of cross
`IVecI`	`nml(double vx1, double vy1, double vx2, double vy2)` create normal vector from 3 points of self, pt1 and pt2
`IVec`	`nml(IVec2 v)` alias of cross
`static IVec`	`nml(IVec2[] pts)` normal vector of polyline loop defined by input points.
`IVec`	`nml(IVec2I v)` alias of cross
`IVecI`	`nml(IVec2I pt1, IVec2I pt2)` create normal vector from 3 points of self, pt1 and pt2
`IVecI`	`nml(IVec2 pt1, IVec2 pt2)` create normal vector from 3 points of self, pt1 and pt2
`IVec2`	`ortho()` rotate vector in Pi/2
`IVec2`	`perpendicularVecToLine(IVec2I lineDir)` create a new vector from line to this point perpendicular to the line dir
`IVec2`	`perpendicularVecToLine(IVec2I lineDir, IVec2I linePt)` create a new vector from this point to the line in parpendicular direction.
`double[]`	`projectTo2Vec(IVec2I v1, IVec2I 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.
`double`	`ratioOnSegment(IVec2I linePt1, IVec2I linePt2)` ratio of projected point between two points (line segment).
`IVec2`	`ref(double lineX, double lineY)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`ref(double linePtX, double linePtY, double lineDirX, double lineDirY)` reflect (mirror) 2 dimensionally to the other side of the line at line point
`IVec2`	`ref(IVec2 lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`ref(IVec2I lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`ref(IVec2I linePt, IVec2I lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`IVec2`	`ref(IVec2 linePt, IVec2 lineDir)` reflect (mirror) 2 dimensionally to the other side of the line
`static IVec2I[]`	`removeDuplicatedPoints(IVec2I[] pts, boolean closed)`
`static IVec2I[]`	`removeStraightPoints(IVec2I[] pts, boolean closed)` remove points which are on straight line of adjacents
`IVec2`	`rev()` alias of neg
`IVec2`	`rot(double angle)` rotate
`IVec2`	`rot(double centerX, double centerY, double angle)` rotate around center
`IVec2`	`rot(IDoubleI angle)` rotate
`IVec2`	`rot(IVec2 destDir)` rotate towards destination direction
`IVec2`	`rot(IVec2 center, double angle)` rotate around center
`IVec2`	`rot(IVec2I destDir)` rotate towards destination direction
`IVec2`	`rot(IVec2I center, double angle)` rotate around center
`IVec2`	`rot(IVec2I center, IDoubleI angle)` rotate around center
`IVec2`	`rot(IVec2I center, IVec2I destPt)` rotate around center towards destination point
`IVec2`	`rot(IVec2 center, IVec2 destPt)` rotate around center towards destination point
`IVec2`	`scale(double f)` alias of mul
`IVec2`	`scale(double centerX, double centerY, double f)` scale around center
`IVec2`	`scale(IDoubleI f)` alias of mul
`IVec2`	`scale(IVec2 center, double f)` scale around center
`IVec2`	`scale(IVec2I center, double f)` scale around center
`IVec2`	`scale(IVec2I center, IDoubleI f)` scale around center
`IVec2`	`scale1d(double axisX, double axisY, double f)` scale only in 1 direction
`IVec2`	`scale1d(double centerX, double centerY, double axisX, double axisY, double f)` scale only in 1 direction from a center
`IVec2`	`scale1d(IVec2 axis, double f)` scale only in 1 direction
`IVec2`	`scale1d(IVec2I axis, double f)` scale only in 1 direction
`IVec2`	`scale1d(IVec2I axis, IDoubleI f)` scale only in 1 direction
`IVec2`	`scale1d(IVec2I center, IVec2I axis, double f)` scale only in 1 direction from a center
`IVec2`	`scale1d(IVec2I center, IVec2I axis, IDoubleI f)` scale only in 1 direction from a center
`IVec2`	`scale1d(IVec2 center, IVec2 axis, double f)` scale only in 1 direction from a center
`IVec2`	`set(double x, double y)`
`IVec2`	`set(IDoubleI x, IDoubleI y)`
`IVec2`	`set(IVec2 v)`
`IVec2`	`set(IVec2I v)`
`IVec2`	`set(IVecI v)`
`IVec2`	`set(IVecI v, IVecI projectionDir)`
`IVec2`	`set(IVecI v, IVecI xaxis, IVecI yaxis)`
`IVec2`	`set(IVecI v, IVecI xaxis, IVecI yaxis, IVecI origin)`
`IVec2`	`shear(double sxy, double syx)` shear operation on XY
`IVec2`	`shear(IDoubleI sxy, IDoubleI syx)` shear operation on XY
`IVec2`	`shear(IVec2I center, double sxy, double syx)` shear operation on XY
`IVec2`	`shear(IVec2I center, IDoubleI sxy, IDoubleI syx)` shear operation on XY
`static double`	`signedArea(IVec2[] pts)` Calculate area of the polyline loop defined by the input points.
`IVec2`	`sub(double x, double y)`
`IVec2`	`sub(IDoubleI x, IDoubleI y)`
`IVec2`	`sub(IVec2 v)`
`IVec2`	`sub(IVec2I v)`
`IVec2`	`sum(double vx, double vy)` create a new instance of summation
`IVec2`	`sum(IVec2 v)` create a new instance of summation
`IVec2`	`sum(IVec2 v2, double w2)` create a new instance of weighted sum
`IVec2`	`sum(IVec2 v2, double w1, double w2)` create a new instance of weighted sum
`IVec2`	`sum(IVec2I... v)` create a new instance of summation
`IVec2`	`sum(IVec2I v)` create a new instance of summation
`IVec2`	`sum(IVec2I v2, double w2)` create a new instance of weighted sum
`IVec2`	`sum(IVec2I v2, double w1, double w2)` create a new instance of weighted sum
`IVec2`	`sum(IVec2I v2, IDoubleI w2)` create a new instance of weighted sum
`IVec2`	`sum(IVec2I v2, IDoubleI w1, IDoubleI w2)` create a new instance of weighted sum
`IVec`	`to3d()`
`IVec`	`to3d(double z)`
`IVec`	`to3d(IDoubleI z)`
`IVec4`	`to4d()`
`IVec4`	`to4d(double z, double w)`
`IVec4`	`to4d(IDoubleI z, IDoubleI w)`
`java.lang.String`	`toString()`
`IVec2`	`transform(IMatrix2I mat)` transform with 2x2 transform matrix
`IVec2`	`transform(IMatrix3I mat)` transform with 3x3 transform matrix
`IVec2`	`transform(IVec2I xvec, IVec2I yvec)` transform with transform vectors
`IVec2`	`transform(IVec2I xvec, IVec2I yvec, IVec2I translate)` transform with transform vectors
`IVec2`	`transform(IVec2 xvec, IVec2 yvec)` transform with transform vectors
`IVec2`	`transform(IVec2 xvec, IVec2 yvec, IVec2 translate)` transform with transform vectors
`IVec2`	`translate(double x, double y)` alias of add()
`IVec2`	`translate(IDoubleI x, IDoubleI y)` alias of add()
`IVec2`	`translate(IVec2 v)` alias of add()
`IVec2`	`translate(IVec2I v)` alias of add()
`IVec2`	`unit()` unitize (normalize) vector
`double`	`x()`
`IVec2`	`x(double vx)` setting x component
`IVec2`	`x(IDoubleI vx)` setting x component
`double`	`x(ISwitchE e)` getting x component
`IDouble`	`x(ISwitchR r)` getting x component
`double`	`y()`
`IVec2`	`y(double vy)` setting y component
`IVec2`	`y(IDoubleI vy)` setting y component
`double`	`y(ISwitchE e)` getting y component
`IDouble`	`y(ISwitchR r)` getting y component
`IVec2`	`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

xaxis
```
public static IVec2 xaxis
```

yaxis
```
public static IVec2 yaxis
```

x
```
public double x
```

y
```
public double y
```

Constructor Detail

IVec2
```
public IVec2()
```

IVec2

public IVec2(double x,
     double y)

IVec2
```
public IVec2(IVec2 v)
```

IVec2
```
public IVec2(IVec2I v)
```

IVec2

public IVec2(IDoubleI x,
     IDoubleI y)

IVec2
```
public IVec2(IVecI v)
```

IVec2

public IVec2(IVecI v,
     IVecI projectionDir)

IVec2

public IVec2(IVecI v,
     IVecI xaxis,
     IVecI yaxis)

IVec2

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

IVec2
```
public IVec2(IServerI s)
```

IVec2

public IVec2(IServerI s,
     double x,
     double y)

IVec2

public IVec2(IServerI s,
     IVec2 v)

IVec2

public IVec2(IServerI s,
     IVec2I v)

IVec2

public IVec2(IServerI s,
     IDoubleI x,
     IDoubleI y)

IVec2

public IVec2(IServerI s,
     IVecI v)

IVec2

public IVec2(IServerI s,
     IVecI v,
     IVecI projectionDir)

IVec2

public IVec2(IServerI s,
     IVecI v,
     IVecI xaxis,
     IVecI yaxis)

IVec2

public IVec2(IServerI s,
     IVecI v,
     IVecI xaxis,
     IVecI yaxis,
     IVecI origin)

Method Detail
- x
```
public double x()
```
  Specified by:
  
  x in interface IVec2I
- y
```
public double y()
```
  Specified by:
  
  y in interface IVec2I
- x
```
public IVec2 x(double vx)
```
  setting x component
  
  Specified by:
  
  x in interface IVec2I
- y
```
public IVec2 y(double vy)
```
  setting y component
  
  Specified by:
  
  y in interface IVec2I
- x
```
public IVec2 x(IDoubleI vx)
```
  setting x component
  
  Specified by:
  
  x in interface IVec2I
- y
```
public IVec2 y(IDoubleI vy)
```
  setting y component
  
  Specified by:
  
  y in interface IVec2I
- x
```
public double x(ISwitchE e)
```
  getting x component
  
  Specified by:
  
  x in interface IVec2I
- y
```
public double y(ISwitchE e)
```
  getting y component
  
  Specified by:
  
  y in interface IVec2I
- x
```
public IDouble x(ISwitchR r)
```
  getting x component
  
  Specified by:
  
  x in interface IVec2I
- y
```
public IDouble y(ISwitchR r)
```
  getting y component
  
  Specified by:
  
  y in interface IVec2I
- get
```
public IVec2 get()
```
  Specified by:
  
  get in interface IParameter
  
  Specified by:
  
  get in interface IVec2I
  
  Specified by:
  
  get in interface IVec2Op
- dup
```
public IVec2 dup()
```
  Specified by:
  
  dup in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  dup in interface IVec2I
- to3d
```
public IVec to3d()
```
  Specified by:
  
  to3d in interface IVec2I
- to3d
```
public IVec to3d(double z)
```
  Specified by:
  
  to3d in interface IVec2I
- to3d
```
public IVec to3d(IDoubleI z)
```
  Specified by:
  
  to3d in interface IVec2I
- to4d
```
public IVec4 to4d()
```
  Specified by:
  
  to4d in interface IVec2I
- to4d
```
public IVec4 to4d(double z,
         double w)
```
  Specified by:
  
  to4d in interface IVec2I
- to4d
```
public IVec4 to4d(IDoubleI z,
         IDoubleI w)
```
  Specified by:
  
  to4d in interface IVec2I
- getX
```
public IDouble getX()
```
  Specified by:
  
  getX in interface IVec2I
- getY
```
public IDouble getY()
```
  Specified by:
  
  getY in interface IVec2I
- set
```
public IVec2 set(double x,
        double y)
```
  Specified by:
  
  set in interface IVec2I
- set
```
public IVec2 set(IVec2 v)
```
- set
```
public IVec2 set(IVec2I v)
```
  Specified by:
  
  set in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  set in interface IVec2I
- set
```
public IVec2 set(IDoubleI x,
        IDoubleI y)
```
  Specified by:
  
  set in interface IVec2I
- set
```
public IVec2 set(IVecI v)
```
- set
```
public IVec2 set(IVecI v,
        IVecI projectionDir)
```
- set
```
public IVec2 set(IVecI v,
        IVecI xaxis,
        IVecI yaxis)
```
- set
```
public IVec2 set(IVecI v,
        IVecI xaxis,
        IVecI yaxis,
        IVecI origin)
```
- add
```
public IVec2 add(double x,
        double y)
```
  Specified by:
  
  add in interface IVec2I
- add
```
public IVec2 add(IDoubleI x,
        IDoubleI y)
```
  Specified by:
  
  add in interface IVec2I
- add
```
public IVec2 add(IVec2 v)
```
- add
```
public IVec2 add(IVec2I v)
```
  Specified by:
  
  add in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  add in interface IVec2I
- sub
```
public IVec2 sub(double x,
        double y)
```
  Specified by:
  
  sub in interface IVec2I
- sub
```
public IVec2 sub(IDoubleI x,
        IDoubleI y)
```
  Specified by:
  
  sub in interface IVec2I
- sub
```
public IVec2 sub(IVec2 v)
```
- sub
```
public IVec2 sub(IVec2I v)
```
  Specified by:
  
  sub in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  sub in interface IVec2I
- mul
```
public IVec2 mul(double x)
```
  Specified by:
  
  mul in interface IVec2I
- mul
```
public IVec2 mul(IDouble v)
```
- mul
```
public IVec2 mul(IDoubleI v)
```
  Specified by:
  
  mul in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  mul in interface IVec2I
- div
```
public IVec2 div(double x)
```
  Specified by:
  
  div in interface IVec2I
- div
```
public IVec2 div(IDouble v)
```
- div
```
public IVec2 div(IDoubleI v)
```
  Specified by:
  
  div in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  div in interface IVec2I
- neg
```
public IVec2 neg()
```
  Specified by:
  
  neg in interface IVec2I
- rev
```
public IVec2 rev()
```
  alias of neg
  
  Specified by:
  
  rev in interface IVec2I
- flip
```
public IVec2 flip()
```
  alias of neg
  
  Specified by:
  
  flip in interface IVec2I
- zero
```
public IVec2 zero()
```
  setting all zero
  
  Specified by:
  
  zero in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  zero in interface IVec2I
- add
```
public IVec2 add(IVec2 v,
        double f)
```
  scale add
- add
```
public IVec2 add(IVec2I v,
        double f)
```
  scale add
  
  Specified by:
  
  add in interface IVec2I
- add
```
public IVec2 add(IVec2I v,
        IDoubleI f)
```
  scale add
  
  Specified by:
  
  add in interface IVec2I
- add
```
public IVec2 add(double f,
        IVec2 v)
```
  scale add; alias
- add
```
public IVec2 add(double f,
        IVec2I v)
```
  scale add; alias
  
  Specified by:
  
  add in interface IVec2I
- add
```
public IVec2 add(IDoubleI f,
        IVec2I v)
```
  scale add; alias
  
  Specified by:
  
  add in interface IVec2I
- dot
```
public double dot(IVec2 v)
```
  dot product
- dot
```
public double dot(double vx,
         double vy)
```
  dot product
  
  Specified by:
  
  dot in interface IVec2I
- dot
```
public double dot(IVec2I v)
```
  dot product
  
  Specified by:
  
  dot in interface IVec2I
- dot
```
public double dot(ISwitchE e,
         IVec2I v)
```
  dot product
  
  Specified by:
  
  dot in interface IVec2I
- dot
```
public IDouble dot(ISwitchR r,
          IVec2I v)
```
  dot product
  
  Specified by:
  
  dot in interface IVec2I
- cross
```
public IVec cross(IVec2 v)
```
  cross product in z direction as IVec
- cross
```
public IVec cross(double vx,
         double vy)
```
  cross product in z direction as IVec
  
  Specified by:
  
  cross in interface IVec2I
- cross
```
public IVec cross(IVec2I v)
```
  cross product in z direction as IVec
  
  Specified by:
  
  cross in interface IVec2I
- len
```
public double len()
```
  Description copied from interface: IVec2I
  
  getting length
  
  Specified by:
  
  len in interface IVec2I
  
  Returns:
  length (norm) of the vector in double
- len
```
public double len(ISwitchE e)
```
  Description copied from interface: IVec2I
  
  getting length
  
  Specified by:
  
  len in interface IVec2I
  
  Returns:
  length (norm) of the vector in double
- len
```
public IDouble len(ISwitchR r)
```
  Description copied from interface: IVec2I
  
  getting length
  
  Specified by:
  
  len in interface IVec2I
  
  Returns:
  length (norm) of the vector in double
- len2
```
public double len2()
```
  return squared length of the vector in double
  
  Specified by:
  
  len2 in interface IVec2I
- len2
```
public double len2(ISwitchE e)
```
  return squared length of the vector in double
  
  Specified by:
  
  len2 in interface IVec2I
- len2
```
public IDouble len2(ISwitchR r)
```
  return squared length of the vector in double
  
  Specified by:
  
  len2 in interface IVec2I
- len
```
public IVec2 len(IDoubleI l)
```
  setting length
  
  Specified by:
  
  len in interface IVec2I
- len
```
public IVec2 len(double l)
```
  setting length
  
  Specified by:
  
  len in interface IVec2I
- unit
```
public IVec2 unit()
```
  unitize (normalize) vector
  
  Specified by:
  
  unit in interface IVec2I
- ortho
```
public IVec2 ortho()
```
  rotate vector in Pi/2
  
  Specified by:
  
  ortho in interface IVec2I
- dist
```
public double dist(IVec2 v)
```
  distance of two vectors
- dist
```
public double dist(double vx,
          double vy)
```
  distance of two vectors
  
  Specified by:
  
  dist in interface IVec2I
- dist
```
public double dist(IVec2I v)
```
  distance of two vectors
  
  Specified by:
  
  dist in interface IVec2I
- dist
```
public double dist(ISwitchE e,
          IVec2I v)
```
  distance of two vectors
  
  Specified by:
  
  dist in interface IVec2I
- dist
```
public IDouble dist(ISwitchR r,
           IVec2I v)
```
  distance of two vectors
  
  Specified by:
  
  dist in interface IVec2I
- dist2
```
public double dist2(IVec2 v)
```
  squared distance of two vectors
- dist2
```
public double dist2(double vx,
           double vy)
```
  squared distance of two vectors
  
  Specified by:
  
  dist2 in interface IVec2I
- dist2
```
public double dist2(IVec2I v)
```
  squared distance of two vectors
  
  Specified by:
  
  dist2 in interface IVec2I
- dist2
```
public double dist2(ISwitchE e,
           IVec2I v)
```
  squared distance of two vectors
  
  Specified by:
  
  dist2 in interface IVec2I
- dist2
```
public IDouble dist2(ISwitchR r,
            IVec2I v)
```
  squared distance of two vectors
  
  Specified by:
  
  dist2 in interface IVec2I
- eq
```
public boolean eq(IVec2 v)
```
  whether location is same or not
- eq
```
public boolean eq(double vx,
         double vy)
```
  whether location is same or not
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public boolean eq(IVec2I v)
```
  whether location is same or not
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public boolean eq(ISwitchE e,
         IVec2I v)
```
  whether location is same or not
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public IBool eq(ISwitchR r,
       IVec2I v)
```
  whether location is same or not
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public boolean eq(IVec2 v,
         double tolerance)
```
  whether location is same or not within tolerance
- eq
```
public boolean eq(double vx,
         double vy,
         double tolerance)
```
  whether location is same or not within tolerance
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public boolean eq(IVec2I v,
         double tolerance)
```
  whether location is same or not within tolerance
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public boolean eq(ISwitchE e,
         IVec2I v,
         double tolerance)
```
  whether location is same or not within tolerance
  
  Specified by:
  
  eq in interface IVec2I
- eq
```
public IBool eq(ISwitchR r,
       IVec2I v,
       IDoubleI tolerance)
```
  whether location is same or not within tolerance
  
  Specified by:
  
  eq in interface IVec2I
- eqX
```
public boolean eqX(IVec2 v)
```
  check if same in X
- eqY
```
public boolean eqY(IVec2 v)
```
  check if same in Y
- eqX
```
public boolean eqX(double vx)
```
  check if same in X
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(double vy)
```
  check if same in Y
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public boolean eqX(IVec2I v)
```
  check if same in X
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(IVec2I v)
```
  check if same in Y
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public boolean eqX(ISwitchE e,
          IVec2I v)
```
  check if same in X
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(ISwitchE e,
          IVec2I v)
```
  check if same in Y
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public IBool eqX(ISwitchR r,
        IVec2I v)
```
  check if same in X
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public IBool eqY(ISwitchR r,
        IVec2I v)
```
  check if same in Y
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public boolean eqX(IVec2 v,
          double tolerance)
```
  check if same in X within tolerance
- eqY
```
public boolean eqY(IVec2 v,
          double tolerance)
```
  check if same in Y within tolerance
- eqX
```
public boolean eqX(double vx,
          double tolerance)
```
  check if same in X within tolerance
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(double vy,
          double tolerance)
```
  check if same in Y within tolerance
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public boolean eqX(IVec2I v,
          double tolerance)
```
  check if same in X within tolerance
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(IVec2I v,
          double tolerance)
```
  check if same in Y within tolerance
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public boolean eqX(ISwitchE e,
          IVec2I v,
          double tolerance)
```
  check if same in X within tolerance
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public boolean eqY(ISwitchE e,
          IVec2I v,
          double tolerance)
```
  check if same in Y within tolerance
  
  Specified by:
  
  eqY in interface IVec2I
- eqX
```
public IBool eqX(ISwitchR r,
        IVec2I v,
        IDoubleI tolerance)
```
  check if same in X within tolerance
  
  Specified by:
  
  eqX in interface IVec2I
- eqY
```
public IBool eqY(ISwitchR r,
        IVec2I v,
        IDoubleI tolerance)
```
  check if same in Y within tolerance
  
  Specified by:
  
  eqY in interface IVec2I
- angle
```
public double angle(IVec2 v)
```
  Returns:
  angle of two vector. From -Pi to Pi. Sign follows right-handed screw rule
- angle
```
public double angle(double vx,
           double vy)
```
  Description copied from interface: IVec2I
  
  angle between two vectors
  
  Specified by:
  
  angle in interface IVec2I
  
  Returns:
  angle of two vector. From -Pi to Pi. Sign follows right-handed screw rule
- angle
```
public double angle(IVec2I v)
```
  Description copied from interface: IVec2I
  
  angle between two vectors
  
  Specified by:
  
  angle in interface IVec2I
  
  Returns:
  angle of two vector. From -Pi to Pi. Sign follows right-handed screw rule
- angle
```
public double angle(ISwitchE e,
           IVec2I v)
```
  Description copied from interface: IVec2I
  
  angle between two vectors
  
  Specified by:
  
  angle in interface IVec2I
  
  Returns:
  angle of two vector. From -Pi to Pi. Sign follows right-handed screw rule
- angle
```
public IDouble angle(ISwitchR r,
            IVec2I v)
```
  Description copied from interface: IVec2I
  
  angle between two vectors
  
  Specified by:
  
  angle in interface IVec2I
  
  Returns:
  angle of two vector. From -Pi to Pi. Sign follows right-handed screw rule
- rot
```
public IVec2 rot(double angle)
```
  rotate
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IDoubleI angle)
```
  rotate
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IVec2 center,
        double angle)
```
  rotate around center
- rot
```
public IVec2 rot(double centerX,
        double centerY,
        double angle)
```
  rotate around center
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IVec2I center,
        double angle)
```
  rotate around center
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IVec2I center,
        IDoubleI angle)
```
  rotate around center
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IVec2 destDir)
```
  rotate towards destination direction
- rot
```
public IVec2 rot(IVec2I destDir)
```
  rotate towards destination direction
  
  Specified by:
  
  rot in interface IVec2I
- rot
```
public IVec2 rot(IVec2 center,
        IVec2 destPt)
```
  rotate around center towards destination point
- rot
```
public IVec2 rot(IVec2I center,
        IVec2I destPt)
```
  rotate around center towards destination point
  
  Specified by:
  
  rot in interface IVec2I
- scale
```
public IVec2 scale(double f)
```
  alias of mul
  
  Specified by:
  
  scale in interface IVec2I
- scale
```
public IVec2 scale(IDoubleI f)
```
  alias of mul
  
  Specified by:
  
  scale in interface IVec2I
- scale
```
public IVec2 scale(IVec2 center,
          double f)
```
  scale around center
- scale
```
public IVec2 scale(double centerX,
          double centerY,
          double f)
```
  scale around center
  
  Specified by:
  
  scale in interface IVec2I
- scale
```
public IVec2 scale(IVec2I center,
          double f)
```
  scale around center
  
  Specified by:
  
  scale in interface IVec2I
- scale
```
public IVec2 scale(IVec2I center,
          IDoubleI f)
```
  scale around center
  
  Specified by:
  
  scale in interface IVec2I
- scale1d
```
public IVec2 scale1d(IVec2 axis,
            double f)
```
  scale only in 1 direction
- scale1d
```
public IVec2 scale1d(IVec2I axis,
            double f)
```
  scale only in 1 direction
  
  Specified by:
  
  scale1d in interface IVec2I
- scale1d
```
public IVec2 scale1d(IVec2I axis,
            IDoubleI f)
```
  scale only in 1 direction
  
  Specified by:
  
  scale1d in interface IVec2I
- scale1d
```
public IVec2 scale1d(double axisX,
            double axisY,
            double f)
```
  scale only in 1 direction
  
  Specified by:
  
  scale1d in interface IVec2I
- scale1d
```
public IVec2 scale1d(IVec2 center,
            IVec2 axis,
            double f)
```
  scale only in 1 direction from a center
- scale1d
```
public IVec2 scale1d(IVec2I center,
            IVec2I axis,
            double f)
```
  scale only in 1 direction from a center
  
  Specified by:
  
  scale1d in interface IVec2I
- scale1d
```
public IVec2 scale1d(IVec2I center,
            IVec2I axis,
            IDoubleI f)
```
  scale only in 1 direction from a center
  
  Specified by:
  
  scale1d in interface IVec2I
- scale1d
```
public IVec2 scale1d(double centerX,
            double centerY,
            double axisX,
            double axisY,
            double f)
```
  scale only in 1 direction from a center
  
  Specified by:
  
  scale1d in interface IVec2I
- ref
```
public IVec2 ref(IVec2 lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Parameters:
  lineDir - direction of reflection line
- ref
```
public IVec2 ref(double lineX,
        double lineY)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  ref in interface IVec2I
- ref
```
public IVec2 ref(IVec2I lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  ref in interface IVec2I
  
  Parameters:
  lineDir - direction of reflection line
- ref
```
public IVec2 ref(IVec2 linePt,
        IVec2 lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Parameters:
  linePt - start point of reflection line
  lineDir - direction of reflection line
- ref
```
public IVec2 ref(double linePtX,
        double linePtY,
        double lineDirX,
        double lineDirY)
```
  reflect (mirror) 2 dimensionally to the other side of the line at line point
  
  Specified by:
  
  ref in interface IVec2I
- ref
```
public IVec2 ref(IVec2I linePt,
        IVec2I lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  ref in interface IVec2I
  
  Parameters:
  linePt - start point of reflection line
  lineDir - direction of reflection line
- mirror
```
public IVec2 mirror(IVec2 lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Parameters:
  lineDir - direction of reflection line
- mirror
```
public IVec2 mirror(double lineX,
           double lineY)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  mirror in interface IVec2I
- mirror
```
public IVec2 mirror(IVec2I lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  mirror in interface IVec2I
  
  Parameters:
  lineDir - direction of reflection line
- mirror
```
public IVec2 mirror(IVec2 linePt,
           IVec2 lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Parameters:
  linePt - start point of reflection line
  lineDir - direction of reflection line
- mirror
```
public IVec2 mirror(double linePtX,
           double linePtY,
           double lineDirX,
           double lineDirY)
```
  reflect (mirror) 2 dimensionally to the other side of the line at line point
  
  Specified by:
  
  mirror in interface IVec2I
- mirror
```
public IVec2 mirror(IVec2I linePt,
           IVec2I lineDir)
```
  reflect (mirror) 2 dimensionally to the other side of the line
  
  Specified by:
  
  mirror in interface IVec2I
  
  Parameters:
  linePt - start point of reflection line
  lineDir - direction of reflection line
- shear
```
public IVec2 shear(double sxy,
          double syx)
```
  shear operation on XY
  
  Specified by:
  
  shear in interface IVec2I
- shear
```
public IVec2 shear(IDoubleI sxy,
          IDoubleI syx)
```
  shear operation on XY
  
  Specified by:
  
  shear in interface IVec2I
- shear
```
public IVec2 shear(IVec2I center,
          double sxy,
          double syx)
```
  shear operation on XY
  
  Specified by:
  
  shear in interface IVec2I
- shear
```
public IVec2 shear(IVec2I center,
          IDoubleI sxy,
          IDoubleI syx)
```
  shear operation on XY
  
  Specified by:
  
  shear in interface IVec2I
- translate
```
public IVec2 translate(double x,
              double y)
```
  alias of add()
  
  Specified by:
  
  translate in interface IVec2I
- translate
```
public IVec2 translate(IDoubleI x,
              IDoubleI y)
```
  alias of add()
  
  Specified by:
  
  translate in interface IVec2I
- translate
```
public IVec2 translate(IVec2 v)
```
  alias of add()
- translate
```
public IVec2 translate(IVec2I v)
```
  alias of add()
  
  Specified by:
  
  translate in interface IVec2I
- transform
```
public IVec2 transform(IMatrix2I mat)
```
  transform with 2x2 transform matrix
  
  Specified by:
  
  transform in interface IVec2I
- transform
```
public IVec2 transform(IMatrix3I mat)
```
  transform with 3x3 transform matrix
  
  Specified by:
  
  transform in interface IVec2I
- transform
```
public IVec2 transform(IVec2 xvec,
              IVec2 yvec)
```
  transform with transform vectors
- transform
```
public IVec2 transform(IVec2I xvec,
              IVec2I yvec)
```
  transform with transform vectors
  
  Specified by:
  
  transform in interface IVec2I
- transform
```
public IVec2 transform(IVec2 xvec,
              IVec2 yvec,
              IVec2 translate)
```
  transform with transform vectors
- transform
```
public IVec2 transform(IVec2I xvec,
              IVec2I yvec,
              IVec2I translate)
```
  transform with transform vectors
  
  Specified by:
  
  transform in interface IVec2I
- mv
```
public IVec2 mv(double x,
       double y)
```
  mv() is alias of add()
  
  Specified by:
  
  mv in interface IVec2I
- mv
```
public IVec2 mv(IDoubleI x,
       IDoubleI y)
```
  mv() is alias of add()
  
  Specified by:
  
  mv in interface IVec2I
- mv
```
public IVec2 mv(IVec2 v)
```
  mv() is alias of add()
- mv
```
public IVec2 mv(IVec2I v)
```
  mv() is alias of add()
  
  Specified by:
  
  mv in interface IVec2I
- cp
```
public IVec2 cp()
```
  cp() is alias of dup()
  
  Specified by:
  
  cp in interface IArithmeticVal<IVec2I,IDoubleI>
  
  Specified by:
  
  cp in interface IVec2I
- cp
```
public IVec2 cp(double x,
       double y)
```
  cp() is alias of dup().add()
  
  Specified by:
  
  cp in interface IVec2I
- cp
```
public IVec2 cp(IDoubleI x,
       IDoubleI y)
```
  cp() is alias of dup().add()
  
  Specified by:
  
  cp in interface IVec2I
- cp
```
public IVec2 cp(IVec2 v)
```
  cp() is alias of dup().add()
- cp
```
public IVec2 cp(IVec2I v)
```
  cp() is alias of dup().add()
  
  Specified by:
  
  cp in interface IVec2I
- dif
```
public IVec2 dif(IVec2 v)
```
  create a new instance of difference
- dif
```
public IVec2 dif(double vx,
        double vy)
```
  create a new instance of difference
  
  Specified by:
  
  dif in interface IVec2I
- dif
```
public IVec2 dif(IVec2I v)
```
  create a new instance of difference
  
  Specified by:
  
  dif in interface IVec2I
- diff
```
public IVec2 diff(IVec2 v)
```
  alias of dif
- diff
```
public IVec2 diff(double vx,
         double vy)
```
  alias of dif
  
  Specified by:
  
  diff in interface IVec2I
- diff
```
public IVec2 diff(IVec2I v)
```
  alias of dif
  
  Specified by:
  
  diff in interface IVec2I
- mid
```
public IVec2 mid(IVec2 v)
```
  create a new instance of midpoint
- mid
```
public IVec2 mid(double vx,
        double vy)
```
  create a new instance of midpoint
  
  Specified by:
  
  mid in interface IVec2I
- mid
```
public IVec2 mid(IVec2I v)
```
  create a new instance of midpoint
  
  Specified by:
  
  mid in interface IVec2I
- sum
```
public IVec2 sum(IVec2 v)
```
  create a new instance of summation
- sum
```
public IVec2 sum(double vx,
        double vy)
```
  create a new instance of summation
  
  Specified by:
  
  sum in interface IVec2I
- sum
```
public IVec2 sum(IVec2I v)
```
  create a new instance of summation
  
  Specified by:
  
  sum in interface IVec2I
- sum
```
public IVec2 sum(IVec2I... v)
```
  create a new instance of summation
  
  Specified by:
  
  sum in interface IVec2I
- bisect
```
public IVec2 bisect(IVec2 v)
```
  create a new instance of bisector
- bisect
```
public IVec2 bisect(double vx,
           double vy)
```
  create a new instance of bisector
  
  Specified by:
  
  bisect in interface IVec2I
- bisect
```
public IVec2 bisect(IVec2I v)
```
  create a new instance of bisector
  
  Specified by:
  
  bisect in interface IVec2I
- sum
```
public IVec2 sum(IVec2 v2,
        double w1,
        double w2)
```
  create a new instance of weighted sum
- sum
```
public IVec2 sum(IVec2I v2,
        double w1,
        double w2)
```
  create a new instance of weighted sum
  
  Specified by:
  
  sum in interface IVec2I
- sum
```
public IVec2 sum(IVec2I v2,
        IDoubleI w1,
        IDoubleI w2)
```
  create a new instance of weighted sum
  
  Specified by:
  
  sum in interface IVec2I
- sum
```
public IVec2 sum(IVec2 v2,
        double w2)
```
  create a new instance of weighted sum
- sum
```
public IVec2 sum(IVec2I v2,
        double w2)
```
  create a new instance of weighted sum
  
  Specified by:
  
  sum in interface IVec2I
- sum
```
public IVec2 sum(IVec2I v2,
        IDoubleI w2)
```
  create a new instance of weighted sum
  
  Specified by:
  
  sum in interface IVec2I
- nml
```
public IVec nml(IVec2 v)
```
  alias of cross
- nml
```
public IVec nml(IVec2I v)
```
  alias of cross
  
  Specified by:
  
  nml in interface IVec2I
- nml
```
public IVecI nml(double vx,
        double vy)
```
  alias of cross
  
  Specified by:
  
  nml in interface IVec2I
- nml
```
public IVecI nml(IVec2 pt1,
        IVec2 pt2)
```
  create normal vector from 3 points of self, pt1 and pt2
- nml
```
public IVecI nml(double vx1,
        double vy1,
        double vx2,
        double vy2)
```
  create normal vector from 3 points of self, pt1 and pt2
  
  Specified by:
  
  nml in interface IVec2I
- nml
```
public IVecI nml(IVec2I pt1,
        IVec2I pt2)
```
  create normal vector from 3 points of self, pt1 and pt2
  
  Specified by:
  
  nml in interface IVec2I
- isParallel
```
public boolean isParallel(IVec2I v)
```
  check if two vectors are parallel
- isParallel
```
public boolean isParallel(IVec2I v,
                 double angleReso)
```
  check if two vectors are parallel
- isStraight
```
public boolean isStraight(IVec2I v1,
                 IVec2I v2)
```
  check if three locations are on straight line
- isStraight
```
public boolean isStraight(IVec2I v1,
                 IVec2I v2,
                 double angleReso)
```
  check if three locations are on straight line
- intersect
```
public static IVec2 intersect(IVec2I pt1,
              IVec2I dir1,
              IVec2I pt2,
              IVec2I dir2)
```
  intersection of two infinite lines
- intersectYLine
```
public static IVec2 intersectYLine(IVec2 linePt,
                   IVec2 lineDir,
                   double xOfYLine)
```
- intersectXLine
```
public static IVec2 intersectXLine(IVec2 linePt,
                   IVec2 lineDir,
                   double yOfXLine)
```
- intersectSegment
```
public static IVec2 intersectSegment(IVec2I line1pt1,
                     IVec2I line1pt2,
                     IVec2I line2pt1,
                     IVec2I line2pt2)
```
- intersectPolyline
```
public static IVec2 intersectPolyline(IVec2I p1,
                      IVec2I p2,
                      IVec2I[] pts,
                      boolean closed)
```
- intersectPolyline
```
public static IVec2 intersectPolyline(IVec2I p1,
                      IVec2I p2,
                      IVec2I[] pts)
```
- intersectPolygon
```
public static IVec2 intersectPolygon(IVec2I p1,
                     IVec2I p2,
                     IVec2I[] pts)
```
- intersectSegmentAndXLine
```
public static IVec2 intersectSegmentAndXLine(IVec2I linePt1,
                             IVec2I linePt2,
                             double y)
```
- intersectSegmentAndYLine
```
public static IVec2 intersectSegmentAndYLine(IVec2I linePt1,
                             IVec2I linePt2,
                             double x)
```
- intersectLineAndCircle
```
public static IVec2[] intersectLineAndCircle(IVec2I linePt,
                             IVec2I lineDir,
                             IVec2I circleCenter,
                             double radius)
```
  intersection of an infinite line and a circle
- removeStraightPoints
```
public static IVec2I[] removeStraightPoints(IVec2I[] pts,
                            boolean closed)
```
  remove points which are on straight line of adjacents
- removeDuplicatedPoints
```
public static IVec2I[] removeDuplicatedPoints(IVec2I[] pts,
                              boolean closed)
```
- clockwise
```
public static boolean clockwise(IVec2[] pts)
```
  Check if polyline loop defined by the point array is clockwise or not. When loop area is zero (line) false (counterclockwise)
- counterclockwise
```
public static boolean counterclockwise(IVec2[] pts)
```
  Check if polyline loop defined by the point array is counterclockwise or not. When loop area is zero (line) true
- loopdir
```
public static boolean loopdir(IVec2[] pts)
```
  true if polyline loop defined by the point array is counter-clockwise. clockwise is false. (right hand screw rule).
- nml
```
public static IVec nml(IVec2[] pts)
```
  normal vector of polyline loop defined by input points. the z value of the normal is equals to signed area of the loop.
- signedArea
```
public static double signedArea(IVec2[] pts)
```
  Calculate area of the polyline loop defined by the input points. If the loop is clockwise, the area is negative.
- area
```
public static double area(IVec2[] pts)
```
- isInside
```
public boolean isInside(IVec2I[] pts)
```
  determine if the point is insde the polygon defined by the argument
- isInside
```
public boolean isInside(IVec2[] pts)
```
  determine if the point is insde the polygon defined by the argument true if the point is on the edge of polygon
- isValid
```
public boolean isValid()
```
  checking x, y is valid number (not Infinite, nor NaN).
  
  Specified by:
  
  isValid in interface IVec2I
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object
- distToLine
```
public double distToLine(IVec2 pt1,
                IVec2 pt2)
```
  distance to an infinite line issue: there is another distToLine(IVecI lineDir,IVecI linePt) method
- isOnLine
```
public boolean isOnLine(IVec2 pt1,
               IVec2 pt2)
```
- isOnSegment
```
public boolean isOnSegment(IVec2I pt1,
                  IVec2I pt2)
```
- isBetween
```
public boolean isBetween(IVec2I pt1,
                IVec2I pt2)
```
- projectTo2Vec
```
public double[] projectTo2Vec(IVec2I v1,
                     IVec2I 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 ;
  
  Returns:
  array of three double number, first is coefficient of uvec, second is of vvec
- perpendicularVecToLine
```
public IVec2 perpendicularVecToLine(IVec2I lineDir,
                           IVec2I linePt)
```
  create a new vector from this point to the line in parpendicular direction.
- perpendicularVecToLine
```
public IVec2 perpendicularVecToLine(IVec2I lineDir)
```
  create a new vector from line to this point perpendicular to the line dir
- distToLine
```
public double distToLine(IVec2I lineDir,
                IVec2I linePt)
```
  distance to an infinite line
- distToLine
```
public double distToLine(IVec2I lineDir)
```
  distance to a line dir
- distToSegment
```
public double distToSegment(IVec2I linePt1,
                   IVec2I linePt2)
```
  distance to a line segment
- ratioOnSegment
```
public double ratioOnSegment(IVec2I linePt1,
                    IVec2I linePt2)
```
  ratio of projected point between two points (line segment). 0.0 is at linePt1, 1.0 is at linePt2.
- distToTriangle
```
public double distToTriangle(IVec2I pt1,
                    IVec2I pt2,
                    IVec2I pt3)
```
  distance to a triangle

Class IVec2

Field Summary

Fields inherited from class igeo.IParameterObject

Constructor Summary

Method Summary

Methods inherited from class igeo.IParameterObject

Methods inherited from class java.lang.Object

Field Detail

xaxis

yaxis

x

y

Constructor Detail

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

IVec2

Method Detail

x

y

x

y

x

y

x

y

x

y

get

dup

to3d

to3d

to3d

to4d

to4d

to4d

getX

getY

set

set

set

set

set

set

set

set

add

add

add

add

sub

sub

sub

sub

mul

mul

mul

div

div

div

neg

rev

flip

zero

add

add