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Added SVertex::curvatures() in the Python API to retrieve curvature

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information at a given SVertex.
This commit is contained in:
Tamito Kajiyama
2011-12-17 19:31:30 +00:00
parent 32db495e50
commit 40f215bbc9
1 changed files with 35 additions and 0 deletions
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35
source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.cpp
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@@ -237,6 +237,40 @@ static PyObject *SVertex_AddFEdge( BPy_SVertex *self , PyObject *args) {
Py_RETURN_NONE;
}
static char SVertex_curvatures___doc__[] =
".. method:: curvatures()\n"
"\n"
" Returns curvature information in the form of a seven-element tuple\n"
" (K1, e1, K2, e2, Kr, er, dKr), where K1 and K2 are scalar values\n"
" representing the first (maximum) and second (minimum) principal\n"
" curvatures at this SVertex, respectively; e1 and e2 are\n"
" three-dimensional vectors representing the first and second principal\n"
" directions, i.e. the directions of the normal plane where the\n"
" curvature takes its maximum and minimum values, respectively; and Kr,\n"
" er and dKr are the radial curvature, radial direction, and the\n"
" derivative of the radial curvature at this SVertex, repectively.\n"
" :return: curvature information expressed by a seven-element tuple\n"
" (K1, e1, K2, e2, Kr, er, dKr).\n"
" :rtype: tuple\n";
static PyObject *SVertex_curvatures( BPy_SVertex *self , PyObject *args) {
const CurvatureInfo *info = self->sv->getCurvatureInfo();
if (!info)
Py_RETURN_NONE;
Vec3r e1(info->e1.x(), info->e1.y(), info->e1.z());
Vec3r e2(info->e2.x(), info->e2.y(), info->e2.z());
Vec3r er(info->er.x(), info->er.y(), info->er.z());
PyObject *retval = PyTuple_New(7);
PyTuple_SetItem( retval, 0, PyFloat_FromDouble(info->K1));
PyTuple_SetItem( retval, 2, Vector_from_Vec3r(e1));
PyTuple_SetItem( retval, 1, PyFloat_FromDouble(info->K2));
PyTuple_SetItem( retval, 3, Vector_from_Vec3r(e2));
PyTuple_SetItem( retval, 4, PyFloat_FromDouble(info->Kr));
PyTuple_SetItem( retval, 5, Vector_from_Vec3r(er));
PyTuple_SetItem( retval, 6, PyFloat_FromDouble(info->dKr));
return retval;
}
// virtual bool operator== (const SVertex &iBrother)
// ViewVertex * viewvertex ()
@@ -250,6 +284,7 @@ static PyMethodDef BPy_SVertex_methods[] = {
{"AddNormal", ( PyCFunction ) SVertex_AddNormal, METH_VARARGS, SVertex_AddNormal___doc__},
{"setId", ( PyCFunction ) SVertex_setId, METH_VARARGS, SVertex_setId___doc__},
{"AddFEdge", ( PyCFunction ) SVertex_AddFEdge, METH_VARARGS, SVertex_AddFEdge___doc__},
{"curvatures", ( PyCFunction ) SVertex_curvatures, METH_NOARGS, SVertex_curvatures___doc__},
{NULL, NULL, 0, NULL}
};