polygons.h Source File

00001 //
00002 // polygons.h
00003 //
00004 // Copyright (C) 1996 Limit Point Systems, Inc.
00005 //
00006 // Author: Curtis Janssen <cljanss@limitpt.com>
00007 // Maintainer: LPS
00008 //
00009 // This file is part of the SC Toolkit.
00010 //
00011 // The SC Toolkit is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Library General Public License as published by
00013 // the Free Software Foundation; either version 2, or (at your option)
00014 // any later version.
00015 //
00016 // The SC Toolkit is distributed in the hope that it will be useful,
00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019 // GNU Library General Public License for more details.
00020 //
00021 // You should have received a copy of the GNU Library General Public License
00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
00024 //
00025 // The U.S. Government is granted a limited license as per AL 91-7.
00026 //
00027 
00028 #ifndef _util_render_polygons_h
00029 #define _util_render_polygons_h
00030 
00031 #include <util/keyval/keyval.h>
00032 #include <util/render/object.h>
00033 
00034 namespace sc {
00035 
00036 class RenderedPolygons: public RenderedObject {
00037   public:
00038     enum Coloring { None, Vertex /*, Face*/ };
00039   private:
00040     RenderedPolygons::Coloring coloring_;
00041     int nvertex_;
00042     int nface_;
00043     double** vertices_;
00044     double** vertex_rgb_;
00045     int** faces_;
00046     int* nvertex_in_face_;
00047   protected:
00048     void render(const Ref<Render>&);
00049   public:
00050     RenderedPolygons();
00051     RenderedPolygons(const Ref<KeyVal>&);
00052     ~RenderedPolygons();
00053 
00054     void initialize(int nvertex, int nface,
00055                     RenderedPolygons::Coloring c = RenderedPolygons::None);
00056     void set_vertex(int, double x, double y, double z);
00057     void set_vertex_rgb(int, double r, double g, double b);
00058     void set_vertex_color(int i, const Color&c) {
00059         set_vertex_rgb(i, c.red(), c.green(), c.blue());
00060       }
00061     void set_face(int iface, int v1, int v2, int v3);
00062     void set_face(int iface, int v1, int v2, int v3, int v4);
00063 
00064     int nvertex() const { return nvertex_; }
00065     int nface() const { return nface_; }
00066     int nvertex_in_face(int iface) const { return nvertex_in_face_[iface]; }
00067     const double *vertex(int i) const { return vertices_[i]; }
00068     double vertex(int i, int j) const { return vertices_[i][j]; }
00069     int face(int i,int j) const { return faces_[i][j]; }
00070     double vertex_rgb(int i, int j) const { return vertex_rgb_[i][j]; }
00071     int have_vertex_rgb() const { return coloring_ == Vertex; }
00072 };
00073 
00074 }
00075 
00076 #endif
00077 
00078 // Local Variables:
00079 // mode: c++
00080 // c-file-style: "CLJ"
00081 // End: