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#ifndef VPYTHON_UTIL_QUADRIC_HPP
#define VPYTHON_UTIL_QUADRIC_HPP
// Copyright (c) 2004 by Jonathan Brandmeyer and others
// See the file license.txt for complete license terms.
// See the file authors.txt for a complete list of contributors.
class GLUquadric;
namespace cvisual {
/** A thin wrapper around GLU quadric objects. This may be used as a factory
to render some predefined quadrics.
*/
class quadric
{
private:
GLUquadric* q; ///< The GLU resource being managed.
public:
enum drawing_style
{
POINT,
LINE,
FILL,
SILHOUETTE
};
enum normal_style
{
NONE,
FLAT,
SMOOTH
};
enum orientation
{
OUTSIDE,
INSIDE
};
/** Create a new quadric object with smooth normals, filled drawing style,
outside orientation, and no texture coordinates.
*/
quadric();
// Free up any resources that GLU required for the object.
~quadric();
/** Set the drawing style to be used for subsequently rendered objects. */
void set_draw_style( drawing_style);
/** Set the style of generated normal vectors used for subsequently rendered
objects.
*/
void set_normal_style( normal_style);
/** Set the direction of teh normal vectors used for rendered objects. */
void set_orientation( orientation);
/** Draw a sphere centered at the origin, with the N pole pointing along the
y axis.
radius The radius of the generated sphere.
slices The number of subdivisions around the y axis
(similar to lines of longitude).
stacks The number of subdivisions along the y axis
(similar to lines of latitude).
*/
void render_sphere( double radius, int slices, int stacks);
/** Draw a cylinder with these properties. The cylinder's base is centered
at the origin, pointing along the +x axis. Only the outer curve
of the cylinder is rendered, not the ends.
base_radius The radius of the base end.
top_radius The radius of the top end.
height The distance along +x between the top and bottom.
slices The number of subdivisions around the x axis.
stacks The number of subdivisions along the x axis.
*/
void render_cylinder( double base_radius, double top_radius, double height,
int slices, int stacks);
/** Draw a cylinder with constant radius, as above. */
void render_cylinder( double radius, double height, int slices, int stacks);
/** Draw a flat filled disk with these properties. The disk is centered on
the origin, rendered in the yz plane.
@param radius The outer radius of the disk.
@param slices The number of radial slices to subdivide the disk into.
@param rings The number of circumferential subdivisions for the disk.
@param rotation +1 for right end of cylinder, -1 for left end (or base of cone)
*/
void render_disk( double radius, int slices, int rings, GLfloat rotation);
};
} // !namespace cvisual
#endif // !defined VPYTHON_UTIL_QUADRIC_HPP
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