# collada.primitive.BoundPrimitive

class `collada.primitive.``BoundPrimitive`

  Bases: `object`

  A `collada.primitive.Primitive` bound to a transform matrix and material mapping.

  `__init__`()

    Initialize self. See help(type(self)) for accurate signature.

  Methods

  `shapes`() | Iterate through the items in this primitive.

  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.

  `shapes`()

    Iterate through the items in this primitive. The shape returned depends on the primitive type. Examples: Triangle, Polygon.

  `vertex`

    Read-only numpy.array of size Nx3 where N is the number of vertex points in the primitive’s vertex source array. The values will be transformed according to the bound transformation matrix.

  `normal`

    Read-only numpy.array of size Nx3 where N is the number of normal values in the primitive’s normal source array. The values will be transformed according to the bound transformation matrix.

  `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. The values will be transformed according to the bound transformation matrix.

  `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 values will be transformed according to the bound transformation matrix.

  `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]`. The values will be transformed according to the bound transformation matrix.

  `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. The values will be transformed according to the bound transformation matrix.