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author | Campbell Barton <ideasman42@gmail.com> | 2011-05-19 08:28:09 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2011-05-19 08:28:09 +0400 |
commit | 32793a13959eb28d3508ad3bb2ecc7490cf9dd5d (patch) | |
tree | 770d622acab87dd5c34d099cb8136b8c8fe35115 /source | |
parent | 391dbde03da940ec8722f144ec2234b9743ffefc (diff) |
add python access to mathutils.intersect_line_plane, update view3d_utils module to use it.
Diffstat (limited to 'source')
-rw-r--r-- | source/blender/python/generic/mathutils_geometry.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/source/blender/python/generic/mathutils_geometry.c b/source/blender/python/generic/mathutils_geometry.c index 6031c716807..49b5eff3aa8 100644 --- a/source/blender/python/generic/mathutils_geometry.c +++ b/source/blender/python/generic/mathutils_geometry.c @@ -497,6 +497,60 @@ static PyObject *M_Geometry_intersect_line_line_2d(PyObject *UNUSED(self), PyObj } +static char M_Geometry_intersect_line_plane_doc[] = +".. function:: intersect_line_plane(line_a, line_b, plane_co, plane_no, no_flip=False)\n" +"\n" +" Takes 2 lines (as 4 vectors) and returns a vector for their point of intersection or None.\n" +"\n" +" :arg line_a: First point of the first line\n" +" :type line_a: :class:`mathutils.Vector`\n" +" :arg line_b: Second point of the first line\n" +" :type line_b: :class:`mathutils.Vector`\n" +" :arg plane_co: A point on the plane\n" +" :type plane_co: :class:`mathutils.Vector`\n" +" :arg plane_no: The direction the plane is facing\n" +" :type plane_no: :class:`mathutils.Vector`\n" +" :arg no_flip: Always return an intersection on the directon defined bt line_a -> line_b\n" +" :type no_flip: :boolean\n" +" :return: The point of intersection or None when not found\n" +" :rtype: :class:`mathutils.Vector` or None\n" +; +static PyObject *M_Geometry_intersect_line_plane(PyObject *UNUSED(self), PyObject* args) +{ + VectorObject *line_a, *line_b, *plane_co, *plane_no; + int no_flip= 0; + float isect[3]; + if(!PyArg_ParseTuple(args, "O!O!O!O!|i:intersect_line_line_2d", + &vector_Type, &line_a, + &vector_Type, &line_b, + &vector_Type, &plane_co, + &vector_Type, &plane_no, + &no_flip) + ) { + return NULL; + } + + if( BaseMath_ReadCallback(line_a) == -1 || + BaseMath_ReadCallback(line_b) == -1 || + BaseMath_ReadCallback(plane_co) == -1 || + BaseMath_ReadCallback(plane_no) == -1 + ) { + return NULL; + } + + if(ELEM4(2, line_a->size, line_b->size, plane_co->size, plane_no->size)) { + PyErr_SetString(PyExc_RuntimeError, "geometry.intersect_line_plane(...) can't use 2D Vectors"); + return NULL; + } + + if(isect_line_plane_v3(isect, line_a->vec, line_b->vec, plane_co->vec, plane_no->vec, no_flip) == 1) { + return newVectorObject(isect, 3, Py_NEW, NULL); + } + else { + Py_RETURN_NONE; + } +} + static char M_Geometry_intersect_point_line_doc[] = ".. function:: intersect_point_line(pt, line_p1, line_p2)\n" "\n" @@ -860,6 +914,7 @@ static PyMethodDef M_Geometry_methods[]= { {"intersect_point_quad_2d", (PyCFunction) M_Geometry_intersect_point_quad_2d, METH_VARARGS, M_Geometry_intersect_point_quad_2d_doc}, {"intersect_line_line", (PyCFunction) M_Geometry_intersect_line_line, METH_VARARGS, M_Geometry_intersect_line_line_doc}, {"intersect_line_line_2d", (PyCFunction) M_Geometry_intersect_line_line_2d, METH_VARARGS, M_Geometry_intersect_line_line_2d_doc}, + {"intersect_line_plane", (PyCFunction) M_Geometry_intersect_line_plane, METH_VARARGS, M_Geometry_intersect_line_plane_doc}, {"interpolate_bezier", (PyCFunction) M_Geometry_interpolate_bezier, METH_VARARGS, M_Geometry_interpolate_bezier_doc}, {"area_tri", (PyCFunction) M_Geometry_area_tri, METH_VARARGS, M_Geometry_area_tri_doc}, {"normal", (PyCFunction) M_Geometry_normal, METH_VARARGS, M_Geometry_normal_doc}, |