Previous text could make think this func was checking whether a point was inside and on the face, while it actually checks whether the projection of that point onto the face is inside its boundary...
		
			
				
	
	
		
			111 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * ***** BEGIN GPL LICENSE BLOCK *****
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 *
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 * The Original Code is Copyright (C) 2012 Blender Foundation.
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 * All rights reserved.
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 *
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 * Contributor(s): Campbell Barton
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 *
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 * ***** END GPL LICENSE BLOCK *****
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 */
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/** \file blender/python/bmesh/bmesh_py_geometry.c
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 *  \ingroup pybmesh
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 *
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 * This file defines the 'bmesh.geometry' module.
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 * Utility functions for operating on 'bmesh.types'
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 */
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#include <Python.h>
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#include "BLI_utildefines.h"
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#include "../mathutils/mathutils.h"
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#include "bmesh.h"
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#include "bmesh_py_types.h"
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#include "bmesh_py_geometry.h" /* own include */
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PyDoc_STRVAR(bpy_bm_geometry_intersect_face_point_doc,
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".. method:: intersect_face_point(face, point)\n"
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"\n"
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"   Tests if the projection of a point is inside a face (using the face's normal).\n"
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"\n"
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"   :arg face: The face to test.\n"
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"   :type face: :class:`bmesh.types.BMFace`\n"
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"   :arg point: The point to test.\n"
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"   :type point: float triplet\n"
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"   :return: True when the projection of the point is in the face.\n"
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"   :rtype: bool\n"
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);
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static PyObject *bpy_bm_geometry_intersect_face_point(BPy_BMFace *UNUSED(self), PyObject *args)
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{
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	BPy_BMFace *py_face;
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	PyObject *py_point;
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	float point[3];
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	bool ret;
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	if (!PyArg_ParseTuple(args,
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	                      "O!O:intersect_face_point",
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	                      &BPy_BMFace_Type, &py_face,
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	                      &py_point))
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	{
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		return NULL;
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	}
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	BPY_BM_CHECK_OBJ(py_face);
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	if (mathutils_array_parse(point, 3, 3, py_point, "intersect_face_point") == -1) {
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		return NULL;
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	}
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	ret = BM_face_point_inside_test(py_face->f, point);
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	return PyBool_FromLong(ret);
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}
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static struct PyMethodDef BPy_BM_geometry_methods[] = {
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	{"intersect_face_point", (PyCFunction)bpy_bm_geometry_intersect_face_point, METH_VARARGS, bpy_bm_geometry_intersect_face_point_doc},
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	{NULL, NULL, 0, NULL}
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};
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PyDoc_STRVAR(BPy_BM_utils_doc,
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"This module provides access to bmesh geometry evaluation functions."
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);
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static struct PyModuleDef BPy_BM_geometry_module_def = {
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	PyModuleDef_HEAD_INIT,
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	"bmesh.geometry",  /* m_name */
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	BPy_BM_utils_doc,  /* m_doc */
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	0,  /* m_size */
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	BPy_BM_geometry_methods,  /* m_methods */
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	NULL,  /* m_reload */
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	NULL,  /* m_traverse */
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	NULL,  /* m_clear */
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	NULL,  /* m_free */
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};
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PyObject *BPyInit_bmesh_geometry(void)
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{
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	PyObject *submodule;
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	submodule = PyModule_Create(&BPy_BM_geometry_module_def);
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	return submodule;
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}
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