78c9d16919
Correct some types, ensure multi-line docs end with a newline, sentences end with a full stop.
117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup pymathutils
|
|
*/
|
|
|
|
#include <Python.h>
|
|
|
|
#include "mathutils.hh"
|
|
#include "mathutils_interpolate.hh"
|
|
|
|
#include "BLI_math_geom.h"
|
|
|
|
#ifndef MATH_STANDALONE /* define when building outside blender */
|
|
# include "MEM_guardedalloc.h"
|
|
#endif
|
|
|
|
/* ---------------------------------WEIGHT CALCULATION ----------------------- */
|
|
|
|
#ifndef MATH_STANDALONE
|
|
|
|
PyDoc_STRVAR(
|
|
/* Wrap. */
|
|
M_Interpolate_poly_3d_calc_doc,
|
|
".. function:: poly_3d_calc(veclist, pt, /)\n"
|
|
"\n"
|
|
" Calculate barycentric weights for a point on a polygon.\n"
|
|
"\n"
|
|
" :arg veclist: Sequence of 3D positions.\n"
|
|
" :type veclist: Sequence[Sequence[float]]\n"
|
|
" :arg pt: 2D or 3D position."
|
|
" :type pt: Sequence[float]"
|
|
" :return: list of per-vector weights.\n"
|
|
" :rtype: list[float]\n");
|
|
static PyObject *M_Interpolate_poly_3d_calc(PyObject * /*self*/, PyObject *args)
|
|
{
|
|
float fp[3];
|
|
float(*vecs)[3];
|
|
Py_ssize_t len;
|
|
|
|
PyObject *point, *veclist, *ret;
|
|
int i;
|
|
|
|
if (!PyArg_ParseTuple(args, "OO:poly_3d_calc", &veclist, &point)) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mathutils_array_parse(
|
|
fp, 2, 3 | MU_ARRAY_ZERO, point, "pt must be a 2-3 dimensional vector") == -1)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
len = mathutils_array_parse_alloc_v(((float **)&vecs), 3, veclist, __func__);
|
|
if (len == -1) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (len) {
|
|
float *weights = MEM_malloc_arrayN<float>(size_t(len), __func__);
|
|
|
|
interp_weights_poly_v3(weights, vecs, len, fp);
|
|
|
|
ret = PyList_New(len);
|
|
for (i = 0; i < len; i++) {
|
|
PyList_SET_ITEM(ret, i, PyFloat_FromDouble(weights[i]));
|
|
}
|
|
|
|
MEM_freeN(weights);
|
|
|
|
PyMem_Free(vecs);
|
|
}
|
|
else {
|
|
ret = PyList_New(0);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* !MATH_STANDALONE */
|
|
|
|
static PyMethodDef M_Interpolate_methods[] = {
|
|
#ifndef MATH_STANDALONE
|
|
{"poly_3d_calc",
|
|
(PyCFunction)M_Interpolate_poly_3d_calc,
|
|
METH_VARARGS,
|
|
M_Interpolate_poly_3d_calc_doc},
|
|
#endif
|
|
{nullptr, nullptr, 0, nullptr},
|
|
};
|
|
|
|
PyDoc_STRVAR(
|
|
/* Wrap. */
|
|
M_Interpolate_doc,
|
|
"The Blender interpolate module.");
|
|
static PyModuleDef M_Interpolate_module_def = {
|
|
/*m_base*/ PyModuleDef_HEAD_INIT,
|
|
/*m_name*/ "mathutils.interpolate",
|
|
/*m_doc*/ M_Interpolate_doc,
|
|
/*m_size*/ 0,
|
|
/*m_methods*/ M_Interpolate_methods,
|
|
/*m_slots*/ nullptr,
|
|
/*m_traverse*/ nullptr,
|
|
/*m_clear*/ nullptr,
|
|
/*m_free*/ nullptr,
|
|
};
|
|
|
|
/*----------------------------MODULE INIT-------------------------*/
|
|
|
|
PyMODINIT_FUNC PyInit_mathutils_interpolate()
|
|
{
|
|
PyObject *submodule = PyModule_Create(&M_Interpolate_module_def);
|
|
return submodule;
|
|
}
|