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author | Tavian Barnes <tavianator@tavianator.com> | 2014-06-07 15:43:19 -0400 |
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committer | Tavian Barnes <tavianator@tavianator.com> | 2014-06-07 15:44:11 -0400 |
commit | 6c95702123269a674f0ffa0b57ec756bc611c643 (patch) | |
tree | 271a4a4e7e3912899bb31d62764f3d2fb9975729 /libdimension-python/dimension.pyx | |
parent | a79085ab984979dbf4f78545f7592c8b47e4a794 (diff) | |
download | dimension-6c95702123269a674f0ffa0b57ec756bc611c643.tar.xz |
objects: Implement triangle fans.
Diffstat (limited to 'libdimension-python/dimension.pyx')
-rw-r--r-- | libdimension-python/dimension.pyx | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libdimension-python/dimension.pyx b/libdimension-python/dimension.pyx index 0c4d665..1ad6d0b 100644 --- a/libdimension-python/dimension.pyx +++ b/libdimension-python/dimension.pyx @@ -1143,6 +1143,33 @@ cdef class Triangle(Object): self._object = dmnsn_new_smooth_triangle(_get_pool(), vertices, normals) Object.__init__(self, *args, **kwargs) +cdef class TriangleFan(Object): + """A triangle.""" + def __init__(self, vertices, *args, **kwargs): + """ + Create a TriangleFan. + + Keyword arguments: + vertices -- the vertices of the fan, starting in the center + + Additionally, TriangleFan() accepts any arguments that Object() accepts. + """ + cdef size_t nvertices = len(vertices) + if nvertices < 3: + raise TypeError("expected at least 3 vertices") + + cdef dmnsn_vector *varray + try: + varray = <dmnsn_vector *>dmnsn_malloc(nvertices*sizeof(dmnsn_vector)) + for i in range(nvertices): + varray[i] = Vector(vertices[i])._v + + self._object = dmnsn_new_triangle_fan(_get_pool(), varray, nvertices) + finally: + dmnsn_free(varray) + + Object.__init__(self, *args, **kwargs) + cdef class Plane(Object): """A plane.""" def __init__(self, normal, double distance, *args, **kwargs): |