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#ifndef VISUAL_ROTATE_H
#define VISUAL_ROTATE_H
#include <boost/python/tuple.hpp>
#include <boost/python/dict.hpp>
#include <boost/python/extract.hpp>
#include <boost/python/raw_function.hpp>
namespace visual {
/* Unfortunately the signatures of the functions primitive.rotate( "angle", "axis")
* and primitive.rotate( "angle", "origin") are identical to Boost.Python. To
* differentiate them, I am using this raw function to interpret the arguments.
* Ick.
*/
template <typename Prim>
boost::python::object
py_rotate( boost::python::tuple args, boost::python::dict kwargs)
{
using boost::python::extract;
Prim* This = extract<Prim*>( args[0]);
if (!kwargs.has_key("angle")) {
// This exception is more useful than the keyerror exception below.
throw std::invalid_argument(
"primitive.rotate(): angle of rotation must be specified.");
}
double angle = extract<double>(kwargs["angle"]);
// The rotation axis, which defaults to the body axis.
vector r_axis;
if (kwargs.has_key("axis"))
r_axis = vector(kwargs["axis"]);
else
r_axis = This->get_axis();
// The rotation origin, which defaults to the body position.
vector origin;
if (kwargs.has_key("origin"))
origin = vector(kwargs["origin"]);
else
origin = This->get_pos();
This->py_rotate( angle, r_axis, origin);
return boost::python::object();
}
} // !namespace visual
#endif // !defined VISUAL_ROTATE_H
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