collada.triangleset.TriangleSet¶
-
class
collada.triangleset.
TriangleSet
(sources, material, index, xmlnode=None)¶ Bases:
collada.primitive.Primitive
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 ofcollada.triangleset.TriangleSet
, thenlen(T)
returns the number of triangles in the set.T[i]
returns the ith triangle in the set.
-
__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. 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 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. -
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]
.
- The TriangleSet object is read-only. To modify a TriangleSet, create a new
instance using