MatrixStackHelper (Javadocs: proscene)

java.lang.Object
- remixlab.dandelion.core.MatrixHelper
- - remixlab.dandelion.core.MatrixStackHelper

```
public class MatrixStackHelper
extends MatrixHelper
```
Complete implementation of MatrixHelper which attaches to it a projection matrix stack and a modelview matrix stack.

Constructor Summary

Constructors
Constructor and Description

MatrixStackHelper(AbstractScene scn)

Constructors
Constructor and Description
`MatrixStackHelper(AbstractScene scn)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`applyModelView(Mat source)` Multiplies the current modelview matrix by the one specified through the parameters.
`void`	`applyProjection(Mat source)` Multiplies the current projection matrix by the one specified through the parameters.
`Mat`	`getModelView(Mat target)` Copy the current modelview matrix into the specified target.
`Mat`	`getProjection(Mat target)` Copy the current projection matrix into the specified target.
`Mat`	`modelView()`
`void`	`popModelView()` Replace the current modelview matrix with the top of the stack.
`void`	`popProjection()` Replace the current projection matrix with the top of the stack.
`void`	`printModelView()` Print the current modelview matrix.
`void`	`printProjection()` Print the current projection matrix.
`Mat`	`projection()`
`void`	`pushModelView()` Push a copy of the modelview matrix onto the stack.
`void`	`pushProjection()` Push a copy of the projection matrix onto the stack.
`void`	`resetModelView()` Set the current modelview matrix to identity.
`void`	`resetProjection()` Set the current projection matrix to identity.
`void`	`rotate(float angle)` Two dimensional rotation.
`void`	`rotate(float angle, float v0, float v1, float v2)` Rotate about a vector in space.
`void`	`rotateX(float angle)` Rotate around the X axis.
`void`	`rotateY(float angle)` Rotate around the Y axis.
`void`	`rotateZ(float angle)` Rotate around the Z axis.
`void`	`scale(float s)` Scale equally in all dimensions.
`void`	`scale(float sx, float sy)` Scale in X and Y.
`void`	`scale(float x, float y, float z)` Scale in X, Y, and Z.
`void`	`setModelView(Mat source)` Set the current modelview matrix to the contents of another.
`void`	`setProjection(Mat source)` Set the current projection matrix to the contents of another.
`void`	`translate(float tx, float ty)` Translate in X and Y.
`void`	`translate(float tx, float ty, float tz)` Translate in X, Y, and Z.

Methods inherited from class remixlab.dandelion.core.MatrixHelper
beginScreenDrawing, bind, bind, cacheProjectionViewInverse, endScreenDrawing, isProjectionViewInverseCached, loadModelView, loadModelView, loadProjection, loadProjection, projectionView, projectionViewInverse, scene

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MatrixStackHelper
```
public MatrixStackHelper(AbstractScene scn)
```
- Method Detail
  - pushModelView
```
public void pushModelView()
```
    Description copied from class: MatrixHelper
    
    Push a copy of the modelview matrix onto the stack.
    
    Overrides:
    
    pushModelView in class MatrixHelper
  - popModelView
```
public void popModelView()
```
    Description copied from class: MatrixHelper
    
    Replace the current modelview matrix with the top of the stack.
    
    Overrides:
    
    popModelView in class MatrixHelper
  - resetModelView
```
public void resetModelView()
```
    Description copied from class: MatrixHelper
    
    Set the current modelview matrix to identity.
    
    Specified by:
    
    resetModelView in class MatrixHelper
  - modelView
```
public Mat modelView()
```
    Specified by:
    
    modelView in class MatrixHelper
    
    Returns:
    
    modelview matrix
  - getModelView
```
public Mat getModelView(Mat target)
```
    Description copied from class: MatrixHelper
    
    Copy the current modelview matrix into the specified target. Pass in null to create a new matrix.
    
    Specified by:
    
    getModelView in class MatrixHelper
  - printModelView
```
public void printModelView()
```
    Description copied from class: MatrixHelper
    
    Print the current modelview matrix.
    
    Specified by:
    
    printModelView in class MatrixHelper
  - setModelView
```
public void setModelView(Mat source)
```
    Description copied from class: MatrixHelper
    
    Set the current modelview matrix to the contents of another.
    
    Specified by:
    
    setModelView in class MatrixHelper
  - applyModelView
```
public void applyModelView(Mat source)
```
    Description copied from class: MatrixHelper
    
    Multiplies the current modelview matrix by the one specified through the parameters.
    
    Specified by:
    
    applyModelView in class MatrixHelper
  - translate
```
public void translate(float tx,
                      float ty)
```
    Description copied from class: MatrixHelper
    
    Translate in X and Y.
    
    Overrides:
    
    translate in class MatrixHelper
  - translate
```
public void translate(float tx,
                      float ty,
                      float tz)
```
    Description copied from class: MatrixHelper
    
    Translate in X, Y, and Z.
    
    Overrides:
    
    translate in class MatrixHelper
  - rotate
```
public void rotate(float angle)
```
    Description copied from class: MatrixHelper
    
    Two dimensional rotation.
    Same as rotateZ (this is identical to a 3D rotation along the z-axis) but included for clarity. It'd be weird for people drawing 2D graphics to be using rotateZ. And they might kick our a-- for the confusion.
    Additional background.
    
    Overrides:
    
    rotate in class MatrixHelper
  - rotateX
```
public void rotateX(float angle)
```
    Description copied from class: MatrixHelper
    
    Rotate around the X axis.
    
    Overrides:
    
    rotateX in class MatrixHelper
  - rotateY
```
public void rotateY(float angle)
```
    Description copied from class: MatrixHelper
    
    Rotate around the Y axis.
    
    Overrides:
    
    rotateY in class MatrixHelper
  - rotateZ
```
public void rotateZ(float angle)
```
    Description copied from class: MatrixHelper
    
    Rotate around the Z axis.
    
    Overrides:
    
    rotateZ in class MatrixHelper
  - rotate
```
public void rotate(float angle,
                   float v0,
                   float v1,
                   float v2)
```
    Description copied from class: MatrixHelper
    
    Rotate about a vector in space. Same as the glRotatef() function.
    
    Overrides:
    
    rotate in class MatrixHelper
  - scale
```
public void scale(float s)
```
    Description copied from class: MatrixHelper
    
    Scale equally in all dimensions.
    
    Overrides:
    
    scale in class MatrixHelper
  - scale
```
public void scale(float sx,
                  float sy)
```
    Description copied from class: MatrixHelper
    
    Scale in X and Y. Equivalent to scale(sx, sy, 1).
    Not recommended for use in 3D, because the z-dimension is just scaled by 1, since there's no way to know what else to scale it by.
    
    Overrides:
    
    scale in class MatrixHelper
  - scale
```
public void scale(float x,
                  float y,
                  float z)
```
    Description copied from class: MatrixHelper
    
    Scale in X, Y, and Z.
    
    Overrides:
    
    scale in class MatrixHelper
  - pushProjection
```
public void pushProjection()
```
    Description copied from class: MatrixHelper
    
    Push a copy of the projection matrix onto the stack.
    
    Overrides:
    
    pushProjection in class MatrixHelper
  - popProjection
```
public void popProjection()
```
    Description copied from class: MatrixHelper
    
    Replace the current projection matrix with the top of the stack.
    
    Overrides:
    
    popProjection in class MatrixHelper
  - setProjection
```
public void setProjection(Mat source)
```
    Description copied from class: MatrixHelper
    
    Set the current projection matrix to the contents of another.
    
    Overrides:
    
    setProjection in class MatrixHelper
  - resetProjection
```
public void resetProjection()
```
    Description copied from class: MatrixHelper
    
    Set the current projection matrix to identity.
    
    Overrides:
    
    resetProjection in class MatrixHelper
  - applyProjection
```
public void applyProjection(Mat source)
```
    Description copied from class: MatrixHelper
    
    Multiplies the current projection matrix by the one specified through the parameters.
    
    Overrides:
    
    applyProjection in class MatrixHelper
  - projection
```
public Mat projection()
```
    Overrides:
    
    projection in class MatrixHelper
    
    Returns:
    
    projection matrix
  - getProjection
```
public Mat getProjection(Mat target)
```
    Description copied from class: MatrixHelper
    
    Copy the current projection matrix into the specified target. Pass in null to create a new matrix.
    
    Overrides:
    
    getProjection in class MatrixHelper
  - printProjection
```
public void printProjection()
```
    Description copied from class: MatrixHelper
    
    Print the current projection matrix.
    
    Overrides:
    
    printProjection in class MatrixHelper

Class MatrixStackHelper

Constructor Summary

Method Summary

Methods inherited from class remixlab.dandelion.core.MatrixHelper

Methods inherited from class java.lang.Object

Constructor Detail

MatrixStackHelper

Method Detail

pushModelView

popModelView

resetModelView

modelView

getModelView

printModelView

setModelView

applyModelView

translate

translate

rotate

rotateX

rotateY

rotateZ

rotate

scale

scale

scale

pushProjection

popProjection

setProjection

resetProjection

applyProjection

projection

getProjection

printProjection