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Panda3D
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This represents the <Transform> entry of a group or texture node: a list of component transform operations, applied in order, that describe a net transform matrix. More...
Public Types | |
| enum | ComponentType { CTInvalid = 0, CTTranslate2d = 1, CTTranslate3d = 2, CTRotate2d = 3, CTRotx = 4, CTRoty = 5, CTRotz = 6, CTRotate3d = 7, CTScale2d = 8, CTScale3d = 9, CTUniformScale = 10, CTMatrix3 = 11, CTMatrix4 = 12 } |
Public Member Functions | |
| EggTransform () | |
| EggTransform (EggTransform const copy) | |
| addMatrix3 (Mat3D const mat) | |
| Appends an arbitrary 3x3 matrix to the current transform. | |
| addMatrix4 (Mat4D const mat) | |
| Appends an arbitrary 4x4 matrix to the current transform. | |
| addRotate2d (double angle) | |
| Appends a 2-d rotation to the current transform. | |
| addRotate3d (QuatD const quat) | |
| Appends an arbitrary 3-d rotation to the current transform, expressed as a quaternion. | |
| addRotate3d (double angle, Vec3D const axis) | |
| Appends a 3-d rotation about an arbitrary axis to the current transform. | |
| addRotx (double angle) | |
| Appends a rotation about the X axis to the current transform. | |
| addRoty (double angle) | |
| Appends a rotation about the Y axis to the current transform. | |
| addRotz (double angle) | |
| Appends a rotation about the Z axis to the current transform. | |
| addScale2d (VBase2D const scale) | |
| Appends a possibly non-uniform scale to the current transform. | |
| addScale3d (VBase3D const scale) | |
| Appends a possibly non-uniform scale to the current transform. | |
| addTranslate2d (Vec2D const translate) | |
| Appends a 2-d translation operation to the current transform. | |
| addTranslate3d (Vec3D const translate) | |
| Appends a 3-d translation operation to the current transform. | |
| addUniformScale (double scale) | |
| Appends a uniform scale to the current transform. | |
| clearTransform () | |
| Resets the transform to empty, identity. | |
| Mat3D const | getComponentMat3 (int n) |
| Returns the 3x3 matrix associated with the nth component. | |
| Mat4D const | getComponentMat4 (int n) |
| Returns the 4x4 matrix associated with the nth component. | |
| double | getComponentNumber (int n) |
| Returns the solitary number associated with the nth component. | |
| ComponentType | getComponentType (int n) |
| Returns the type of the nth component. | |
| VBase2D const | getComponentVec2 (int n) |
| Returns the 2-component vector associated with the nth component. | |
| VBase3D const | getComponentVec3 (int n) |
| Returns the 3-component vector associated with the nth component. | |
| int | getNumComponents () |
| Returns the number of components that make up the transform. | |
| Mat3D | getTransform2d () |
| Returns the overall transform as a 3x3 matrix. | |
| Mat4D const | getTransform3d () |
| Returns the overall transform as a 4x4 matrix. | |
| bool | hasTransform () |
| Returns true if the transform is nonempty, false if it is empty (no transform components have been added). | |
| bool | hasTransform2d () |
| Returns true if the transform is specified as a 2-d transform, e.g. | |
| bool | hasTransform3d () |
| Returns true if the transform is specified as a 3-d transform, e.g. | |
| EggTransform | operator= (EggTransform const copy) |
| setTransform2d (Mat3D const mat) | |
| Sets the overall transform as a 3x3 matrix. | |
| setTransform3d (Mat4D const mat) | |
| Sets the overall transform as a 4x4 matrix. | |
| bool | transformIsIdentity () |
| Returns true if the described transform is identity, false otherwise. | |
| write (ostream out, int indent_level, string label) | |
| Writes the transform to the indicated stream in Egg format. | |
This represents the <Transform> entry of a group or texture node: a list of component transform operations, applied in order, that describe a net transform matrix.
This may be either a 3-d transform, and therefore described by a 4x4 matrix, or a 2-d transform, described by a 3x3 matrix.
| enum ComponentType |
| EggTransform | ( | ) |
| EggTransform | ( | EggTransform const | copy | ) |
| addMatrix3 | ( | Mat3D const | mat | ) |
Appends an arbitrary 3x3 matrix to the current transform.
| addMatrix4 | ( | Mat4D const | mat | ) |
Appends an arbitrary 4x4 matrix to the current transform.
| addRotate2d | ( | double | angle | ) |
Appends a 2-d rotation to the current transform.
The rotation angle is specified in degrees counterclockwise about the origin.
| addRotate3d | ( | QuatD const | quat | ) |
Appends an arbitrary 3-d rotation to the current transform, expressed as a quaternion.
This is converted to axis-angle notation for the egg file.
| addRotate3d | ( | double | angle, |
| Vec3D const | axis | ||
| ) |
Appends a 3-d rotation about an arbitrary axis to the current transform.
The rotation angle is specified in degrees counterclockwise about the axis.
| addRotx | ( | double | angle | ) |
Appends a rotation about the X axis to the current transform.
The rotation angle is specified in degrees counterclockwise about the axis.
| addRoty | ( | double | angle | ) |
Appends a rotation about the Y axis to the current transform.
The rotation angle is specified in degrees counterclockwise about the axis.
| addRotz | ( | double | angle | ) |
Appends a rotation about the Z axis to the current transform.
The rotation angle is specified in degrees counterclockwise about the axis.
| addScale2d | ( | VBase2D const | scale | ) |
Appends a possibly non-uniform scale to the current transform.
| addScale3d | ( | VBase3D const | scale | ) |
Appends a possibly non-uniform scale to the current transform.
| addTranslate2d | ( | Vec2D const | translate | ) |
Appends a 2-d translation operation to the current transform.
| addTranslate3d | ( | Vec3D const | translate | ) |
Appends a 3-d translation operation to the current transform.
| addUniformScale | ( | double | scale | ) |
Appends a uniform scale to the current transform.
| clearTransform | ( | ) |
Resets the transform to empty, identity.
| Mat3D const getComponentMat3 | ( | int | n | ) |
Returns the 3x3 matrix associated with the nth component.
It is an error to call this if the component type is not CT_matrix3.
| Mat4D const getComponentMat4 | ( | int | n | ) |
Returns the 4x4 matrix associated with the nth component.
It is an error to call this if the component type is not CT_matrix4.
| double getComponentNumber | ( | int | n | ) |
Returns the solitary number associated with the nth component.
In the case of a rotation, this is the angle in degrees to rotate; in the case of uniform scale, this is the amount of the scale. Other types do not use this property.
| ComponentType getComponentType | ( | int | n | ) |
Returns the type of the nth component.
| VBase2D const getComponentVec2 | ( | int | n | ) |
Returns the 2-component vector associated with the nth component.
This may be the translate vector, rotate axis, or non-uniform scale. It is an error to call this if the component type does not use a 2-d vector property.
| VBase3D const getComponentVec3 | ( | int | n | ) |
Returns the 3-component vector associated with the nth component.
This may be the translate vector, rotate axis, or non-uniform scale. It is an error to call this if the component type does not use a 3-d vector property.
| int getNumComponents | ( | ) |
Returns the number of components that make up the transform.
| Mat3D getTransform2d | ( | ) |
Returns the overall transform as a 3x3 matrix.
It is an error to call this if has_transform3d() is true.
| Mat4D const getTransform3d | ( | ) |
Returns the overall transform as a 4x4 matrix.
It is valid to call this even if has_transform2d() is true; in this case, the 3x3 transform will be expanded to a 4x4 matrix.
| bool hasTransform | ( | ) |
Returns true if the transform is nonempty, false if it is empty (no transform components have been added).
This is true for either a 2-d or a 3-d transform.
| bool hasTransform2d | ( | ) |
Returns true if the transform is specified as a 2-d transform, e.g.
with a 3x3 matrix, or false if it is specified as a 3-d transform (with a 4x4 matrix), or not specified at all.
Normally, EggTextures have a 2-d matrix (but occasionally they use a 3-d matrix), and EggGroups always have a 3-d matrix.
| bool hasTransform3d | ( | ) |
Returns true if the transform is specified as a 3-d transform, e.g.
with a 4x4 matrix, or false if it is specified as a 2-d transform (with a 2x2 matrix), or not specified at all.
Normally, EggTextures have a 3-d matrix (but occasionally they use a 3-d matrix), and EggGroups always have a 3-d matrix.
| EggTransform operator= | ( | EggTransform const | copy | ) |
| setTransform2d | ( | Mat3D const | mat | ) |
Sets the overall transform as a 3x3 matrix.
This completely replaces whatever componentwise transform may have been defined.
| setTransform3d | ( | Mat4D const | mat | ) |
Sets the overall transform as a 4x4 matrix.
This completely replaces whatever componentwise transform may have been defined.
| bool transformIsIdentity | ( | ) |
Returns true if the described transform is identity, false otherwise.
| write | ( | ostream | out, |
| int | indent_level, | ||
| string | label | ||
| ) |
Writes the transform to the indicated stream in Egg format.
1.7.3
