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java.lang.Objectcom.badlogic.gdx.math.Matrix3
public class Matrix3
A 3x3 column major matrix for 2D transforms.
Field Summary | |
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float[] |
vals
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Constructor Summary | |
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Matrix3()
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Method Summary | |
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float |
det()
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float[] |
getValues()
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Matrix3 |
idt()
Sets this matrix to the identity matrix |
Matrix3 |
inv()
Inverts this matrix given that the determinant is != 0 |
Matrix3 |
mul(Matrix3 m)
Multiplies this matrix with the other matrix in the order this * m. |
Matrix3 |
rotate(float angle)
Postmultiplies this matrix with a (counter-clockwise) rotation matrix. |
Matrix3 |
scale(float scaleX,
float scaleY)
Postmultiplies this matrix with a scale matrix. |
Matrix3 |
set(Matrix3 mat)
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Matrix3 |
setToRotation(float angle)
Sets this matrix to a rotation matrix that will rotate any vector in counter clockwise order around the z-axis. |
Matrix3 |
setToScaling(float scaleX,
float scaleY)
Sets this matrix to a scaling matrix |
Matrix3 |
setToTranslation(float x,
float y)
Sets this matrix to a translation matrix. |
java.lang.String |
toString()
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Matrix3 |
translate(float x,
float y)
Postmultiplies this matrix by a translation matrix. |
Matrix3 |
trn(float x,
float y)
Adds a translational component to the matrix in the 3rd column. |
Matrix3 |
trn(Vector3 vector)
Adds a translational component to the matrix in the 3rd column. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public float[] vals
Constructor Detail |
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public Matrix3()
Method Detail |
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public Matrix3 idt()
public Matrix3 mul(Matrix3 m)
public Matrix3 setToRotation(float angle)
angle
- the angle in degrees.
public Matrix3 setToTranslation(float x, float y)
x
- the translation in xy
- the translation in y
public Matrix3 setToScaling(float scaleX, float scaleY)
scaleX
- the scale in xscaleY
- the scale in y
public java.lang.String toString()
toString
in class java.lang.Object
public float det()
public Matrix3 inv()
public Matrix3 set(Matrix3 mat)
public Matrix3 trn(Vector3 vector)
vector
- The translation vector
public Matrix3 trn(float x, float y)
x
- The x-component of the translation vectory
- The y-component of the translation vector
public Matrix3 translate(float x, float y)
x
- y
-
public Matrix3 rotate(float angle)
angle
- the angle in degrees
public Matrix3 scale(float scaleX, float scaleY)
scaleX
- scaleY
-
public float[] getValues()
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