EggTransform

from panda3d.egg import EggTransform
class EggTransform

Bases: DTOOL_SUPER_BASE

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.

Inheritance diagram

Inheritance diagram of EggTransform

CTInvalid = 0
CTMatrix3 = 11
CTMatrix4 = 12
CTRotate2d = 3
CTRotate3d = 7
CTRotx = 4
CTRoty = 5
CTRotz = 6
CTScale2d = 8
CTScale3d = 9
CTTranslate2d = 1
CTTranslate3d = 2
CTUniformScale = 10
CT_invalid = 0
CT_matrix3 = 11
CT_matrix4 = 12
CT_rotate2d = 3
CT_rotate3d = 7
CT_rotx = 4
CT_roty = 5
CT_rotz = 6
CT_scale2d = 8
CT_scale3d = 9
CT_translate2d = 1
CT_translate3d = 2
CT_uniform_scale = 10
__init__(*args, **kwargs)
addMatrix3()

C++ Interface: add_matrix3(const EggTransform self, const LMatrix3d mat)

/**

  • Appends an arbitrary 3x3 matrix to the current transform.

*/

addMatrix4()

C++ Interface: add_matrix4(const EggTransform self, const LMatrix4d mat)

/**

  • Appends an arbitrary 4x4 matrix to the current transform.

*/

addRotate2d()

C++ Interface: add_rotate2d(const EggTransform self, double angle)

/**

  • Appends a 2-d rotation to the current transform. The rotation angle is

  • specified in degrees counterclockwise about the origin.

*/

addRotate3d()

C++ Interface: add_rotate3d(const EggTransform self, const LQuaterniond quat) add_rotate3d(const EggTransform self, double angle, const LVector3d 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.

*/

/**

  • 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()

C++ Interface: add_rotx(const EggTransform self, 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()

C++ Interface: add_roty(const EggTransform self, 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()

C++ Interface: add_rotz(const EggTransform self, 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()

C++ Interface: add_scale2d(const EggTransform self, const LVecBase2d scale)

/**

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

*/

addScale3d()

C++ Interface: add_scale3d(const EggTransform self, const LVecBase3d scale)

/**

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

*/

addTranslate2d()

C++ Interface: add_translate2d(const EggTransform self, const LVector2d translate)

/**

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

*/

addTranslate3d()

C++ Interface: add_translate3d(const EggTransform self, const LVector3d translate)

/**

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

*/

addUniformScale()

C++ Interface: add_uniform_scale(const EggTransform self, double scale)

/**

  • Appends a uniform scale to the current transform.

*/

add_matrix3()

C++ Interface: add_matrix3(const EggTransform self, const LMatrix3d mat)

/**

  • Appends an arbitrary 3x3 matrix to the current transform.

*/

add_matrix4()

C++ Interface: add_matrix4(const EggTransform self, const LMatrix4d mat)

/**

  • Appends an arbitrary 4x4 matrix to the current transform.

*/

add_rotate2d()

C++ Interface: add_rotate2d(const EggTransform self, double angle)

/**

  • Appends a 2-d rotation to the current transform. The rotation angle is

  • specified in degrees counterclockwise about the origin.

*/

add_rotate3d()

C++ Interface: add_rotate3d(const EggTransform self, const LQuaterniond quat) add_rotate3d(const EggTransform self, double angle, const LVector3d 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.

*/

/**

  • 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.

*/

add_rotx()

C++ Interface: add_rotx(const EggTransform self, double angle)

/**

  • Appends a rotation about the X axis to the current transform. The rotation

  • angle is specified in degrees counterclockwise about the axis.

*/

add_roty()

C++ Interface: add_roty(const EggTransform self, double angle)

/**

  • Appends a rotation about the Y axis to the current transform. The rotation

  • angle is specified in degrees counterclockwise about the axis.

*/

add_rotz()

C++ Interface: add_rotz(const EggTransform self, double angle)

/**

  • Appends a rotation about the Z axis to the current transform. The rotation

  • angle is specified in degrees counterclockwise about the axis.

*/

add_scale2d()

C++ Interface: add_scale2d(const EggTransform self, const LVecBase2d scale)

/**

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

*/

add_scale3d()

C++ Interface: add_scale3d(const EggTransform self, const LVecBase3d scale)

/**

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

*/

add_translate2d()

C++ Interface: add_translate2d(const EggTransform self, const LVector2d translate)

/**

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

*/

add_translate3d()

C++ Interface: add_translate3d(const EggTransform self, const LVector3d translate)

/**

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

*/

add_uniform_scale()

C++ Interface: add_uniform_scale(const EggTransform self, double scale)

/**

  • Appends a uniform scale to the current transform.

*/

assign()

C++ Interface: assign(const EggTransform self, const EggTransform copy)

/**

*/

clearTransform()

C++ Interface: clear_transform(const EggTransform self)

/**

  • Resets the transform to empty, identity.

*/

clear_transform()

C++ Interface: clear_transform(const EggTransform self)

/**

  • Resets the transform to empty, identity.

*/

getComponentMat3()

C++ Interface: get_component_mat3(EggTransform self, 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.

*/

getComponentMat4()

C++ Interface: get_component_mat4(EggTransform self, 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.

*/

getComponentNumber()

C++ Interface: get_component_number(EggTransform self, 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.

*/

getComponentType()

C++ Interface: get_component_type(EggTransform self, int n)

/**

  • Returns the type of the nth component.

*/

getComponentVec2()

C++ Interface: get_component_vec2(EggTransform self, 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.

*/

getComponentVec3()

C++ Interface: get_component_vec3(EggTransform self, 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.

*/

getNumComponents()

C++ Interface: get_num_components(EggTransform self)

/**

  • Returns the number of components that make up the transform.

*/

getTransform2d()

C++ Interface: get_transform2d(EggTransform self)

/**

  • Returns the overall transform as a 3x3 matrix. It is an error to call this

  • if has_transform3d() is true.

*/

getTransform3d()

C++ Interface: get_transform3d(EggTransform self)

/**

  • 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.

*/

get_component_mat3()

C++ Interface: get_component_mat3(EggTransform self, 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.

*/

get_component_mat4()

C++ Interface: get_component_mat4(EggTransform self, 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.

*/

get_component_number()

C++ Interface: get_component_number(EggTransform self, 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.

*/

get_component_type()

C++ Interface: get_component_type(EggTransform self, int n)

/**

  • Returns the type of the nth component.

*/

get_component_vec2()

C++ Interface: get_component_vec2(EggTransform self, 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.

*/

get_component_vec3()

C++ Interface: get_component_vec3(EggTransform self, 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.

*/

get_num_components()

C++ Interface: get_num_components(EggTransform self)

/**

  • Returns the number of components that make up the transform.

*/

get_transform2d()

C++ Interface: get_transform2d(EggTransform self)

/**

  • Returns the overall transform as a 3x3 matrix. It is an error to call this

  • if has_transform3d() is true.

*/

get_transform3d()

C++ Interface: get_transform3d(EggTransform self)

/**

  • 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()

C++ Interface: has_transform(EggTransform self)

/**

  • 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()

C++ Interface: has_transform2d(EggTransform self)

/**

  • 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()

C++ Interface: has_transform3d(EggTransform self)

/**

  • 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.

*/

has_transform()

C++ Interface: has_transform(EggTransform self)

/**

  • 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.

*/

has_transform2d()

C++ Interface: has_transform2d(EggTransform self)

/**

  • 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.

*/

has_transform3d()

C++ Interface: has_transform3d(EggTransform self)

/**

  • 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.

*/

setTransform2d()

C++ Interface: set_transform2d(const EggTransform self, const LMatrix3d mat)

/**

  • Sets the overall transform as a 3x3 matrix. This completely replaces

  • whatever componentwise transform may have been defined.

*/

setTransform3d()

C++ Interface: set_transform3d(const EggTransform self, const LMatrix4d mat)

/**

  • Sets the overall transform as a 4x4 matrix. This completely replaces

  • whatever componentwise transform may have been defined.

*/

set_transform2d()

C++ Interface: set_transform2d(const EggTransform self, const LMatrix3d mat)

/**

  • Sets the overall transform as a 3x3 matrix. This completely replaces

  • whatever componentwise transform may have been defined.

*/

set_transform3d()

C++ Interface: set_transform3d(const EggTransform self, const LMatrix4d mat)

/**

  • Sets the overall transform as a 4x4 matrix. This completely replaces

  • whatever componentwise transform may have been defined.

*/

transformIsIdentity()

C++ Interface: transform_is_identity(EggTransform self)

/**

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

*/

transform_is_identity()

C++ Interface: transform_is_identity(EggTransform self)

/**

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

*/

write()

C++ Interface: write(EggTransform self, ostream out, int indent_level, str label)

/**

  • Writes the transform to the indicated stream in Egg format.

*/