public
class
Matrix3f
extends Object
java.lang.Object | |
↳ | android.support.v8.renderscript.Matrix3f |
Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.
Public constructors | |
---|---|
Matrix3f()
Creates a new identity 3x3 matrix |
|
Matrix3f(float[] dataArray)
Creates a new matrix and sets its values from the given parameter |
Public methods | |
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float
|
get(int x, int y)
Returns the value for a given row and column |
float[]
|
getArray()
Return a reference to the internal array representing matrix values. |
void
|
load(Matrix3f src)
Sets the values of the matrix to those of the parameter |
void
|
loadIdentity()
Sets the matrix values to identity |
void
|
loadMultiply(Matrix3f lhs, Matrix3f rhs)
Sets current values to be the result of multiplying two given matrices |
void
|
loadRotate(float rot, float x, float y, float z)
Sets current values to be a rotation matrix of certain angle about a given axis |
void
|
loadRotate(float rot)
Makes the upper 2x2 a rotation matrix of the given angle |
void
|
loadScale(float x, float y)
Makes the upper 2x2 a scale matrix of given dimensions |
void
|
loadScale(float x, float y, float z)
Sets current values to be a scale matrix of given dimensions |
void
|
loadTranslate(float x, float y)
Sets current values to be a translation matrix of given dimensions |
void
|
multiply(Matrix3f rhs)
Post-multiplies the current matrix by a given parameter |
void
|
rotate(float rot)
Modifies the upper 2x2 of the current matrix by post-multiplying it with a rotation matrix of given angle |
void
|
rotate(float rot, float x, float y, float z)
Modifies the current matrix by post-multiplying it with a rotation matrix of certain angle about a given axis |
void
|
scale(float x, float y)
Modifies the upper 2x2 of the current matrix by post-multiplying it with a scale matrix of given dimensions |
void
|
scale(float x, float y, float z)
Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions |
void
|
set(int x, int y, float v)
Sets the value for a given row and column |
void
|
translate(float x, float y)
Modifies the current matrix by post-multiplying it with a translation matrix of given dimensions |
void
|
transpose()
Sets the current matrix to its transpose |
Inherited methods | |
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From
class
java.lang.Object
|
Matrix3f ()
Creates a new identity 3x3 matrix
Matrix3f (float[] dataArray)
Creates a new matrix and sets its values from the given parameter
Parameters | |
---|---|
dataArray |
float :
values to set the matrix to, must be 9
floats long
|
float get (int x, int y)
Returns the value for a given row and column
Parameters | |
---|---|
x |
int :
column of the value to return |
y |
int :
row of the value to return |
Returns | |
---|---|
float |
value in the yth row and xth column |
float[] getArray ()
Return a reference to the internal array representing matrix values. Modifying this array will also change the matrix
Returns | |
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float[] |
internal array representing the matrix |
void load (Matrix3f src)
Sets the values of the matrix to those of the parameter
Parameters | |
---|---|
src |
Matrix3f :
matrix to load the values from
|
void loadIdentity ()
Sets the matrix values to identity
void loadMultiply (Matrix3f lhs, Matrix3f rhs)
Sets current values to be the result of multiplying two given matrices
Parameters | |
---|---|
lhs |
Matrix3f :
left hand side matrix |
rhs |
Matrix3f :
right hand side matrix
|
void loadRotate (float rot, float x, float y, float z)
Sets current values to be a rotation matrix of certain angle about a given axis
Parameters | |
---|---|
rot |
float :
angle of rotation |
x |
float :
rotation axis x |
y |
float :
rotation axis y |
z |
float :
rotation axis z
|
void loadRotate (float rot)
Makes the upper 2x2 a rotation matrix of the given angle
Parameters | |
---|---|
rot |
float :
rotation angle
|
void loadScale (float x, float y)
Makes the upper 2x2 a scale matrix of given dimensions
Parameters | |
---|---|
x |
float :
scale component x |
y |
float :
scale component y
|
void loadScale (float x, float y, float z)
Sets current values to be a scale matrix of given dimensions
Parameters | |
---|---|
x |
float :
scale component x |
y |
float :
scale component y |
z |
float :
scale component z
|
void loadTranslate (float x, float y)
Sets current values to be a translation matrix of given dimensions
Parameters | |
---|---|
x |
float :
translation component x |
y |
float :
translation component y
|
void multiply (Matrix3f rhs)
Post-multiplies the current matrix by a given parameter
Parameters | |
---|---|
rhs |
Matrix3f :
right hand side to multiply by
|
void rotate (float rot)
Modifies the upper 2x2 of the current matrix by post-multiplying it with a rotation matrix of given angle
Parameters | |
---|---|
rot |
float :
angle of rotation
|
void rotate (float rot, float x, float y, float z)
Modifies the current matrix by post-multiplying it with a rotation matrix of certain angle about a given axis
Parameters | |
---|---|
rot |
float :
angle of rotation |
x |
float :
rotation axis x |
y |
float :
rotation axis y |
z |
float :
rotation axis z
|
void scale (float x, float y)
Modifies the upper 2x2 of the current matrix by post-multiplying it with a scale matrix of given dimensions
Parameters | |
---|---|
x |
float :
scale component x |
y |
float :
scale component y
|
void scale (float x, float y, float z)
Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions
Parameters | |
---|---|
x |
float :
scale component x |
y |
float :
scale component y |
z |
float :
scale component z
|
void set (int x, int y, float v)
Sets the value for a given row and column
Parameters | |
---|---|
x |
int :
column of the value to set |
y |
int :
row of the value to set
|
v |
float
|
void translate (float x, float y)
Modifies the current matrix by post-multiplying it with a translation matrix of given dimensions
Parameters | |
---|---|
x |
float :
translation component x |
y |
float :
translation component y
|
void transpose ()
Sets the current matrix to its transpose