Package de.xima.fc.utils
Class AffineTransformUtils
- java.lang.Object
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- de.xima.fc.utils.AffineTransformUtils
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public final class AffineTransformUtils extends Object
Utilities foraffine transformations
.- Author:
- XIMA MEDIA GmbH
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Constructor Summary
Constructors Constructor Description AffineTransformUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static AffineTransform
getActionOnPointsInstance(float[] oldPoints, float[] newPoints)
A transform matrix is uniquely identified by its action on three linearly independent points.static AffineTransform
getActionOnPointsInstance(Point2D point1Old, Point2D point1New, Point2D point2Old, Point2D point2New, Point2D point3Old, Point2D point3New)
A transform matrix is uniquely identified by its action on three linearly independent points.
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Method Detail
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getActionOnPointsInstance
public static AffineTransform getActionOnPointsInstance(float[] oldPoints, float[] newPoints)
A transform matrix is uniquely identified by its action on three linearly independent points. This methods creates that transform matrix for the three given points. The three old and new points must be linearly independent.newPoint1 = Matrix * oldPoint1 newPoint2 = Matrix * oldPoint2 newPoint3 = Matrix * oldPoint3
- Parameters:
oldPoints
- Coordinates of the three old points:[x1, y1, x2, y2, x3, y3]
.newPoints
- Coordinates of the three new points:[x1', y1', x2', y2', x3', y3']
.- Returns:
- An affine transform with the effect that transforms the old points into the new points.
- Throws:
org.apache.commons.math3.linear.SingularMatrixException
- When the three points are not linearly independent.
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getActionOnPointsInstance
public static AffineTransform getActionOnPointsInstance(Point2D point1Old, Point2D point1New, Point2D point2Old, Point2D point2New, Point2D point3Old, Point2D point3New)
A transform matrix is uniquely identified by its action on three linearly independent points. This methods creates that transform matrix for the three given points. The three old and new points must be linearly independent.newPoint1 = Matrix * oldPoint1 newPoint2 = Matrix * oldPoint2 newPoint3 = Matrix * oldPoint3
- Parameters:
point1Old
- Coordinates of the first point in the old coordinate system.point1New
- Coordinates of the first point in the new coordinate system.point2Old
- Coordinates of the second point in the old coordinate system.point2New
- Coordinates of the second point in the new coordinate system.point3Old
- Coordinates of the third point in the old coordinate system.point3New
- Coordinates of the third point in the new coordinate system.- Returns:
- An affine transform with the effect that transforms the old points into the new points.
- Throws:
org.apache.commons.math3.linear.SingularMatrixException
- When the three points are not linearly independent.
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