90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
// Filename: geomSphere.h
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// Created by: drose (01Oct99)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef GEOMSPHERE_H
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#define GEOMSPHERE_H
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#include "pandabase.h"
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#include "geom.h"
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////////////////////////////////////////////////////////////////////
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// Class : GeomSphere
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// Description : A sphere primitive. This isn't actually a primitive
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// under OpenGL (or probably most backends), but it's
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// handy to be able to render a sphere from time to
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// time, and it may be a primitive on some backends.
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// This will render the best way the backend knows how
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// to render a sphere.
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//
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// This structure contains a sequence of spheres. Each
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// two consecutive vertices defines a sphere, where the
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// first vertex represents the center, and the second
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// vertex represents a point on the surface.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA GeomSphere : public Geom {
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public:
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GeomSphere() : Geom() { }
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virtual Geom *make_copy() const;
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virtual void print_draw_immediate() const { }
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virtual void draw_immediate(GraphicsStateGuardianBase *gsg, GeomContext *gc);
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virtual int get_num_vertices_per_prim() const {
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return 2;
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}
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virtual int get_num_more_vertices_than_components() const {
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return 0;
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}
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virtual bool uses_components() const {
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return false;
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}
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virtual int get_length(int) const {
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return 2;
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}
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virtual Geom *explode() const {
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return new GeomSphere(*this);
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}
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public:
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static void register_with_read_factory(void);
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static TypedWritable *make_GeomSphere(const FactoryParams ¶ms);
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PUBLISHED:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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public:
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static void init_type() {
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Geom::init_type();
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register_type(_type_handle, "GeomSphere",
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Geom::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#endif
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