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Feature: added scale retreive methods to Matrix4f.

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10534 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
This commit is contained in:
Kae..pl 2013-04-12 21:04:16 +00:00
parent 0ffe547d5a
commit f8c256d127
1 changed files with 25 additions and 2 deletions
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25
engine/src/core/com/jme3/math/Matrix4f.java
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@ -1744,7 +1744,6 @@ public final class Matrix4f implements Savable, Cloneable, java.io.Serializable
public Matrix3f toRotationMatrix() { public Matrix3f toRotationMatrix() {
return new Matrix3f(m00, m01, m02, m10, m11, m12, m20, m21, m22); return new Matrix3f(m00, m01, m02, m10, m11, m12, m20, m21, m22);
} }
public void toRotationMatrix(Matrix3f mat) { public void toRotationMatrix(Matrix3f mat) {
@ -1757,7 +1756,31 @@ public final class Matrix4f implements Savable, Cloneable, java.io.Serializable
mat.m20 = m20; mat.m20 = m20;
mat.m21 = m21; mat.m21 = m21;
mat.m22 = m22; mat.m22 = m22;
}
/**
* Retreives the scale vector from the matrix.
*
* @return the scale vector
*/
public Vector3f toScaleVector() {
Vector3f result = new Vector3f();
this.toScaleVector(result);
return result;
}
/**
* Retreives the scale vector from the matrix and stores it into a given
* vector.
*
* @param the
* vector where the scale will be stored
*/
public void toScaleVector(Vector3f vector) {
float scaleX = (float) Math.sqrt(m00 * m00 + m10 * m10 + m20 * m20);
float scaleY = (float) Math.sqrt(m01 * m01 + m11 * m11 + m21 * m21);
float scaleZ = (float) Math.sqrt(m02 * m02 + m12 * m12 + m22 * m22);
vector.set(scaleX, scaleY, scaleZ);
} }
public void setScale(float x, float y, float z) { public void setScale(float x, float y, float z) {