collada.primitive.Primitive¶
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class
collada.primitive.
Primitive
¶ Bases:
collada.common.DaeObject
Base class for all primitive sets like TriangleSet, LineSet, Polylist, etc.
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__init__
()¶ x.__init__(...) initializes x; see help(type(x)) for signature
Methods
bind
(matrix, materialnodebysymbol)Binds this primitive to a transform matrix and material mapping. load
(collada, localscope, node)Load and return a class instance from an XML node. save
()Attributes
normal
Read-only numpy.array of size Nx3 where N is the number of normal values in the primitive’s normal source array. normal_index
Read-only numpy.array of size Nx3 where N is the number of vertices in the primitive. texcoord_indexset
Read-only tuple of texture coordinate index arrays. texcoordset
Read-only tuple of texture coordinate arrays. vertex
Read-only numpy.array of size Nx3 where N is the number of vertex points in the primitive’s vertex source array. vertex_index
Read-only numpy.array of size Nx3 where N is the number of vertices in the primitive. -
vertex
¶ Read-only numpy.array of size Nx3 where N is the number of vertex points in the primitive’s vertex source array.
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normal
¶ Read-only numpy.array of size Nx3 where N is the number of normal values in the primitive’s normal source array.
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texcoordset
¶ Read-only tuple of texture coordinate arrays. Each value is a numpy.array of size Nx2 where N is the number of texture coordinates in the primitive’s source array.
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textangentset
¶ Read-only tuple of texture tangent arrays. Each value is a numpy.array of size Nx3 where N is the number of texture tangents in the primitive’s source array.
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texbinormalset
¶ Read-only tuple of texture binormal arrays. Each value is a numpy.array of size Nx3 where N is the number of texture binormals in the primitive’s source array.
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vertex_index
¶ Read-only numpy.array of size Nx3 where N is the number of vertices in the primitive. To get the actual vertex points, one can use this array to select into the vertex array, e.g.
vertex[vertex_index]
.
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normal_index
¶ Read-only numpy.array of size Nx3 where N is the number of vertices in the primitive. To get the actual normal values, one can use this array to select into the normals array, e.g.
normal[normal_index]
.
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texcoord_indexset
¶ Read-only tuple of texture coordinate index arrays. Each value is a numpy.array of size Nx2 where N is the number of vertices in the primitive. To get the actual texture coordinates, one can use the array to select into the texcoordset array, e.g.
texcoordset[0][texcoord_indexset[0]]
would select the first set of texture coordinates.
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textangent_indexset
¶ Read-only tuple of texture tangent index arrays. Each value is a numpy.array of size Nx3 where N is the number of vertices in the primitive. To get the actual texture tangents, one can use the array to select into the textangentset array, e.g.
textangentset[0][textangent_indexset[0]]
would select the first set of texture tangents.
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texbinormal_indexset
¶ Read-only tuple of texture binormal index arrays. Each value is a numpy.array of size Nx3 where N is the number of vertices in the primitive. To get the actual texture binormals, one can use the array to select into the texbinormalset array, e.g.
texbinormalset[0][texbinormal_indexset[0]]
would select the first set of texture binormals.
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bind
(matrix, materialnodebysymbol)¶ Binds this primitive to a transform matrix and material mapping. The primitive’s points get transformed by the given matrix and its inputs get mapped to the given materials.
Parameters: - matrix (numpy.array) – A 4x4 numpy float matrix
- materialnodebysymbol (dict) – A dictionary with the material symbols inside the primitive
assigned to
collada.scene.MaterialNode
defined in the scene
Return type:
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getInputList
()¶ Gets a
collada.source.InputList
representing the inputs from a primitive
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load
(collada, localscope, node)¶ Load and return a class instance from an XML node.
Inspect the data inside node, which must match this class tag and create an instance out of it.
Parameters: - collada (collada.Collada) – The collada file object where this object lives
- localscope (dict) – If there is a local scope where we should look for local ids (sid) this is the dictionary. Otherwise empty dict ({})
- node – An Element from python’s ElementTree API
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