EggTransform

Inheritance:

Methods of EggTransform:

Constants in EggTransform:

EggTransform
EggTransform::EggTransform(void);

Description:

addMatrix3
void EggTransform::add_matrix3(LMatrix3d const &mat);

Description: Appends an arbitrary 3x3 matrix to the current transform.

addMatrix4
void EggTransform::add_matrix4(LMatrix4d const &mat);

Description: Appends an arbitrary 4x4 matrix to the current transform.

addRotate2d
void EggTransform::add_rotate2d(double angle);

Description: Appends a 2-d rotation to the current transform. The rotation angle is specified in degrees counterclockwise about the origin.

addRotate3d
void EggTransform::add_rotate3d(double angle, LVector3d const &axis);

Description: Appends a 3-d rotation about an arbitrary axis to the current transform. The rotation angle is specified in degrees counterclockwise about the axis.
Description: 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.

addRotx
void EggTransform::add_rotx(double angle);

Description: Appends a rotation about the X axis to the current transform. The rotation angle is specified in degrees counterclockwise about the axis.

addRoty
void EggTransform::add_roty(double angle);

Description: Appends a rotation about the Y axis to the current transform. The rotation angle is specified in degrees counterclockwise about the axis.

addRotz
void EggTransform::add_rotz(double angle);

Description: Appends a rotation about the Z axis to the current transform. The rotation angle is specified in degrees counterclockwise about the axis.

addScale2d
void EggTransform::add_scale2d(LVecBase2d const &scale);

Description: Appends a possibly non-uniform scale to the current transform.

addScale3d
void EggTransform::add_scale3d(LVecBase3d const &scale);

Description: Appends a possibly non-uniform scale to the current transform.

addTranslate2d
void EggTransform::add_translate2d(LVector2d const &translate);

Description: Appends a 2-d translation operation to the current transform.

addTranslate3d
void EggTransform::add_translate3d(LVector3d const &translate);

Description: Appends a 3-d translation operation to the current transform.

addUniformScale
void EggTransform::add_uniform_scale(double scale);

Description: Appends a uniform scale to the current transform.

clearTransform
void EggTransform::clear_transform(void);

Description: Resets the transform to empty, identity.

getComponentMat3
LMatrix3d const &EggTransform::get_component_mat3(int n) const;

Description: Returns the 3x3 matrix associated with the nth component. It is an error to call this if the component type is not CT_matrix3.

getComponentMat4
LMatrix4d const &EggTransform::get_component_mat4(int n) const;

Description: Returns the 4x4 matrix associated with the nth component. It is an error to call this if the component type is not CT_matrix4.

getComponentNumber
double EggTransform::get_component_number(int n) const;

Description: 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.

getComponentType
EggTransform::ComponentType EggTransform::get_component_type(int n) const;

Description: Returns the type of the nth component.

getComponentVec2
LVecBase2d const &EggTransform::get_component_vec2(int n) const;

Description: 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.

getComponentVec3
LVecBase3d const &EggTransform::get_component_vec3(int n) const;

Description: 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.

getNumComponents
int EggTransform::get_num_components(void) const;

Description: Returns the number of components that make up the transform.

getTransform2d
LMatrix3d EggTransform::get_transform2d(void) const;

Description: Returns the overall transform as a 3x3 matrix. It is an error to call this if has_transform3d() is true.

getTransform3d
LMatrix4d const &EggTransform::get_transform3d(void) const;

Description: 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.

hasTransform
bool EggTransform::has_transform(void) const;

Description: 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.

hasTransform2d
bool EggTransform::has_transform2d(void) const;

Description: 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.

hasTransform3d
bool EggTransform::has_transform3d(void) const;

Description: 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.

operator =
EggTransform &EggTransform::operator =(EggTransform const &copy);

Description:

setTransform2d
void EggTransform::set_transform2d(LMatrix3d const &mat);

Description: Sets the overall transform as a 3x3 matrix. This completely replaces whatever componentwise transform may have been defined.

setTransform3d
void EggTransform::set_transform3d(LMatrix4d const &mat);

Description: Sets the overall transform as a 4x4 matrix. This completely replaces whatever componentwise transform may have been defined.

transformIsIdentity
bool EggTransform::transform_is_identity(void) const;

Description: Returns true if the described transform is identity, false otherwise.

write
void EggTransform::write(ostream &out, int indent_level) const;

Description: Writes the transform to the indicated stream in Egg format.