collada.triangleset.TriangleSet¶

class collada.triangleset.TriangleSet(sources, material, index, xmlnode=None)¶

Class containing the data COLLADA puts in a <triangles> tag, a collection of triangles.

The TriangleSet object is read-only. To modify a TriangleSet, create a new instance using collada.geometry.Geometry.createTriangleSet().
If T is an instance of collada.triangleset.TriangleSet, then len(T) returns the number of triangles in the set. T[i] returns the i^th triangle in the set.

Inheritance diagram of collada.lineset.LineSet, collada.triangleset.TriangleSet, collada.polylist.Polylist, collada.polygons.Polygons

__init__(sources, material, index, xmlnode=None)¶: A TriangleSet should not be created manually. Instead, call the collada.geometry.Geometry.createTriangleSet() method after creating a geometry instance.

Methods

`__init__`(sources, material, index[, xmlnode])	A TriangleSet should not be created manually. Instead, call the
`bind`(matrix, materialnodebysymbol)	Create a bound triangle set from this triangle set, transform and material mapping
`load`(collada, localscope, node)
`save`()

Attributes

`normal`	Read-only numpy.array of size Nx3 where N is the number of normal values in the
`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
`vertex_index`	Read-only numpy.array of size Nx3 where N is the number of vertices in the primitive.

bind(matrix, materialnodebysymbol)¶: Create a bound triangle set from this triangle set, transform and material mapping

generateNormals()¶: If normals is None or you wish for normals to be recomputed, call this method to recompute them.

generateTexTangentsAndBinormals()¶: If there are no texture tangents, this method will compute them. Texture coordinates must exist and it uses the first texture coordinate set.

getInputList()¶: Gets a collada.source.InputList representing the inputs from a primitive

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. To get the actual normal values, one can use this array to select into the normals array, e.g. normal[normal_index].

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.

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.

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.

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.

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.

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.

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. To get the actual vertex points, one can use this array to select into the vertex array, e.g. vertex[vertex_index].