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added an optional arg for object.getBoundBox(worldspace) - so you can get localspace boundboxes, this is useful when getting a dipli's boundbox where the objects worldspace matrix has no useful meaning.

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This commit is contained in:
Campbell Barton
2008-04-07 13:16:56 +00:00
parent 66e74e6057
commit 7c15baff16
2 changed files with 35 additions and 20 deletions
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51
source/blender/python/api2_2x/Object.c
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@@ -360,7 +360,8 @@ static PyObject *Object_getSize( BPy_Object * self, PyObject * args );
static PyObject *Object_getTimeOffset( BPy_Object * self );
static PyObject *Object_getTracked( BPy_Object * self );
static PyObject *Object_getType( BPy_Object * self );
static PyObject *Object_getBoundBox( BPy_Object * self );
static PyObject *Object_getBoundBox( BPy_Object * self, PyObject *args );
static PyObject *Object_getBoundBox_noargs( BPy_Object * self );
static PyObject *Object_getAction( BPy_Object * self );
static PyObject *Object_getPose( BPy_Object * self );
static PyObject *Object_evaluatePose( BPy_Object * self, PyObject *args );
@@ -633,7 +634,7 @@ automatic when the script finishes."},
"Returns SB StiffQuads"},
{"setSBStiffQuads", ( PyCFunction ) Object_SetSBStiffQuads, METH_VARARGS,
"Sets SB StiffQuads"},
{"getBoundBox", ( PyCFunction ) Object_getBoundBox, METH_NOARGS,
{"getBoundBox", ( PyCFunction ) Object_getBoundBox, METH_VARARGS,
"Returns the object's bounding box"},
{"makeDisplayList", ( PyCFunction ) Object_makeDisplayList, METH_NOARGS,
"Update this object's Display List. Some changes like turning\n\
@@ -1471,10 +1472,15 @@ static PyObject *Object_getType( BPy_Object * self )
return PyString_FromString( str );
}
static PyObject *Object_getBoundBox( BPy_Object * self )
static PyObject *Object_getBoundBox( BPy_Object * self, PyObject *args )
{
float *vec = NULL;
PyObject *vector, *bbox;
int worldspace = 1;
if( !PyArg_ParseTuple( args, "|i", &worldspace ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected an int or nothing" );
if( !self->object->data )
return EXPP_ReturnPyObjError( PyExc_AttributeError,
@@ -1524,24 +1530,26 @@ static PyObject *Object_getBoundBox( BPy_Object * self )
for( i = 0, from = vec; i < 8; i++, from += 3 ) {
memcpy( tmpvec, from, 3 * sizeof( float ) );
tmpvec[3] = 1.0f; /* set w coord */
Mat4MulVec4fl( self->object->obmat, tmpvec );
/* divide x,y,z by w */
tmpvec[0] /= tmpvec[3];
tmpvec[1] /= tmpvec[3];
tmpvec[2] /= tmpvec[3];
if (worldspace) {
Mat4MulVec4fl( self->object->obmat, tmpvec );
/* divide x,y,z by w */
tmpvec[0] /= tmpvec[3];
tmpvec[1] /= tmpvec[3];
tmpvec[2] /= tmpvec[3];
#if 0
{ /* debug print stuff */
int i;
printf( "\nobj bbox transformed\n" );
for( i = 0; i < 4; ++i )
printf( "%f ", tmpvec[i] );
printf( "\n" );
}
{ /* debug print stuff */
int i;
printf( "\nobj bbox transformed\n" );
for( i = 0; i < 4; ++i )
printf( "%f ", tmpvec[i] );
printf( "\n" );
}
#endif
}
/* because our bounding box is calculated and
does not have its own memory,
we must create vectors that allocate space */
@@ -1556,6 +1564,11 @@ static PyObject *Object_getBoundBox( BPy_Object * self )
return bbox;
}
static PyObject *Object_getBoundBox_noargs( BPy_Object * self )
{
return Object_getBoundBox(self, PyTuple_New(0));
}
static PyObject *Object_makeDisplayList( BPy_Object * self )
{
Object *ob = self->object;
@@ -4818,7 +4831,7 @@ static PyGetSetDef BPy_Object_getseters[] = {
"The object's type",
NULL},
{"boundingBox",
(getter)Object_getBoundBox, (setter)NULL,
(getter)Object_getBoundBox_noargs, (setter)NULL,
"The bounding box of this object",
NULL},
{"action",

4
source/blender/python/api2_2x/doc/Object.py
View File

@@ -1178,10 +1178,12 @@ class Object:
- 1 - selected
"""
def getBoundBox():
def getBoundBox(worldspace=1):
"""
Returns the worldspace bounding box of this object. This works for meshes (out of
edit mode) and curves.
@type worldspace: int
@param worldspace: An optional argument. When zero, the bounding values will be localspace.
@rtype: list of 8 (x,y,z) float coordinate vectors (WRAPPED DATA)
@return: The coordinates of the 8 corners of the bounding box. Data is wrapped when
bounding box is present.