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Quads.cpp

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00001 
00002 /*
00003     TEDDY - General graphics application library
00004     Copyright (C) 1999-2002  Timo Suoranta
00005     tksuoran@cc.helsinki.fi
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Lesser General Public
00009     License as published by the Free Software Foundation; either
00010     version 2.1 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Lesser General Public License for more details.
00016 
00017     You should have received a copy of the GNU Lesser General Public
00018     License along with this library; if not, write to the Free Software
00019     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020 
00021     $Id:  $
00022 */
00023 
00024 
00025 #include "Teddy/Models/Quads.h"
00026 #include "Teddy/Models/Vertex.h"
00027 #include "Teddy/PhysicalComponents/Projection.h"
00028 #include "Teddy/SysSupport/Messages.h"
00029 #include "Teddy/SysSupport/StdIO.h"
00030 using namespace Teddy::SysSupport;
00031 
00032 
00033 namespace Teddy  {
00034 namespace Models {
00035 
00036 
00038 Quads::Quads(){
00039 }
00040 
00041 
00043 /*virtual*/ Quads::~Quads(){
00044 }
00045 
00046 
00048 /*virtual*/ void Quads::draw( Projection *p ){
00049 
00050     /*if( isEnabled(EL_USE_ELEMENT_NORMAL|EL_HAS_ELEMENT_NORMAL) ){
00051         dmsg( M_INIT, "Drawing flat trianglefan" );
00052 
00053         p->beginTriangles();
00054 
00055         list<Vector*>::const_iterator  n_it  = normals .begin();
00056         list<Vertex*>::const_iterator  v1_it = vertices.begin();
00057         list<Vertex*>::const_iterator  v2_it = v1_it;
00058         Vertex                        *v0    = *v1_it++;
00059         while( n_it != normals.end() && v2_it != vertices.end() ){
00060             Vector *normal = *n_it++;
00061             p->normal( *normal );
00062             v0->draw( p );
00063             v2_it = v1_it;
00064             (*v2_it++)->draw( p ); if( v2_it == vertices.end() ){ dmsg( M_WARN, "TriangleFan missing vertices" ); break; }
00065             (*v2_it++)->draw( p );
00066             v1_it++;
00067         }
00068 
00069         p->end();
00070 
00071     }else{*/
00072         dmsg( M_INIT, "Drawing quads" );
00073 
00074         p->beginQuads();
00075         list<Vertex*>::const_iterator v_it = vertices.begin();
00076         while( v_it != vertices.end() ){
00077             (*v_it)->draw( p );
00078             v_it++;
00079         }
00080 
00081         p->end();
00082     //}
00083 
00084 }
00085 
00086 
00087 //  CSG
00088 /*virtual*/ unsigned long Quads::countCSGFaceElements(){
00089     unsigned long size = vertices.size();
00090     return size / 4;
00091 }
00092 
00093 
00094 };  //  namespace Models
00095 };  //  namespace Teddy
00096