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BLI_math: add isect_tri_tri_v2, wrap via mathutils.geometry

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This commit is contained in:
Campbell Barton
2019-08-10 05:34:30 +10:00
parent c3a9fc5efb
commit 1cd65b274b
3 changed files with 254 additions and 0 deletions
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40
source/blender/python/mathutils/mathutils_geometry.c
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@@ -283,6 +283,42 @@ static PyObject *M_Geometry_intersect_sphere_sphere_2d(PyObject *UNUSED(self), P
return ret;
}
PyDoc_STRVAR(M_Geometry_intersect_tri_tri_2d_doc,
".. function:: intersect_tri_tri_2d(tri_a1, tri_a2, tri_a3, tri_b1, tri_b2, tri_b3)\n"
"\n"
" Check if two 2D triangles intersect.\n"
"\n"
" :rtype: bool\n");
static PyObject *M_Geometry_intersect_tri_tri_2d(PyObject *UNUSED(self), PyObject *args)
{
const char *error_prefix = "intersect_tri_tri_2d";
PyObject *tri_pair_py[2][3];
float tri_pair[2][3][2];
if (!PyArg_ParseTuple(args,
"OOOOOO:intersect_tri_tri_2d",
&tri_pair_py[0][0],
&tri_pair_py[0][1],
&tri_pair_py[0][2],
&tri_pair_py[1][0],
&tri_pair_py[1][1],
&tri_pair_py[1][2])) {
return NULL;
}
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 3; j++) {
if (mathutils_array_parse(
tri_pair[i][j], 2, 2 | MU_ARRAY_SPILL, tri_pair_py[i][j], error_prefix) == -1) {
return NULL;
}
}
}
bool ret = isect_tri_tri_v2(UNPACK3(tri_pair[0]), UNPACK3(tri_pair[1]));
return PyBool_FromLong(ret);
}
PyDoc_STRVAR(M_Geometry_normal_doc,
".. function:: normal(vectors)\n"
"\n"
@@ -1526,6 +1562,10 @@ static PyMethodDef M_Geometry_methods[] = {
(PyCFunction)M_Geometry_intersect_sphere_sphere_2d,
METH_VARARGS,
M_Geometry_intersect_sphere_sphere_2d_doc},
{"intersect_tri_tri_2d",
(PyCFunction)M_Geometry_intersect_tri_tri_2d,
METH_VARARGS,
M_Geometry_intersect_tri_tri_2d_doc},
{"area_tri", (PyCFunction)M_Geometry_area_tri, METH_VARARGS, M_Geometry_area_tri_doc},
{"volume_tetrahedron",
(PyCFunction)M_Geometry_volume_tetrahedron,