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utility functions is_negative_m3 & is_negative_m4, added python Mathutils access Matrix.is_negative

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renamed Mathutils attribute wrapped -> is_wrapped
This commit is contained in:
Campbell Barton
2010-01-30 13:15:39 +00:00
parent 7a76bc9a36
commit ec48cbd267
10 changed files with 51 additions and 14 deletions
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24
source/blender/python/generic/matrix.c
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@@ -1231,14 +1231,34 @@ static PyObject *Matrix_getMedianScale( MatrixObject * self, void *type )
return PyFloat_FromDouble(mat3_to_scale(mat));
}
static PyObject *Matrix_getIsNegative( MatrixObject * self, void *type )
{
float vec[3];
if(!BaseMath_ReadCallback(self))
return NULL;
/*must be 3-4 cols, 3-4 rows, square matrix*/
if(self->colSize == 4 && self->rowSize == 4)
return PyBool_FromLong(is_negative_m4((float (*)[4])*self->matrix));
else if(self->colSize == 3 && self->rowSize == 3)
return PyBool_FromLong(is_negative_m3((float (*)[3])*self->matrix));
else {
PyErr_SetString(PyExc_AttributeError, "Matrix.is_negative: inappropriate matrix size - expects 3x3 or 4x4 matrix\n");
return NULL;
}
}
/*****************************************************************************/
/* Python attributes get/set structure: */
/*****************************************************************************/
static PyGetSetDef Matrix_getseters[] = {
{"row_size", (getter)Matrix_getRowSize, (setter)NULL, "The row size of the matrix (readonly). **type** int", NULL},
{"col_size", (getter)Matrix_getColSize, (setter)NULL, "The column size of the matrix (readonly). **type** int", NULL},
{"median_scale", (getter)Matrix_getMedianScale, (setter)NULL, "The average scale applied to each axis (readonly). **type** float", NULL},
{"wrapped", (getter)BaseMathObject_getWrapped, (setter)NULL, BaseMathObject_Wrapped_doc, NULL},
{"median_scale", (getter)Matrix_getMedianScale, (setter)NULL, "The average scale applied to each axis (readonly). **type** float", NULL},
{"is_negative", (getter)Matrix_getIsNegative, (setter)NULL, "True if this matrix results in a negative scale, (3x3, 4x4 only) (readonly). **type** bool", NULL},
{"is_wrapped", (getter)BaseMathObject_getWrapped, (setter)NULL, BaseMathObject_Wrapped_doc, NULL},
{"_owner",(getter)BaseMathObject_getOwner, (setter)NULL, BaseMathObject_Owner_doc, NULL},
{NULL,NULL,NULL,NULL,NULL} /* Sentinel */
};