icosahedron also done
wrote for easy declaring of interface functions git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1155 7f0cb862-5218-0410-a997-914c9d46530a
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dcnieho
parent
b6f616f685
commit
ade8e6e8ef
@ -202,6 +202,83 @@ static GLubyte cube_vi[CUBE_VERT_PER_OBJ] =
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};
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DECLARE_SHAPE_CACHE(cube,Cube,CUBE);
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/* Icosahedron */
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#define ICOSAHEDRON_NUM_VERT 12
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#define ICOSAHEDRON_NUM_FACES 20
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#define ICOSAHEDRON_NUM_VERT_PER_FACE 3
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#define ICOSAHEDRON_VERT_PER_OBJ ICOSAHEDRON_NUM_FACES*ICOSAHEDRON_NUM_VERT_PER_FACE
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#define ICOSAHEDRON_VERT_ELEM_PER_OBJ ICOSAHEDRON_VERT_PER_OBJ*3
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/* Vertex Coordinates */
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static GLdouble icosahedron_v[ICOSAHEDRON_NUM_VERT*3] =
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{
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1.0, 0.0, 0.0 ,
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0.447213595500, 0.894427191000, 0.0 ,
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0.447213595500, 0.276393202252, 0.850650808354,
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0.447213595500, -0.723606797748, 0.525731112119,
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0.447213595500, -0.723606797748, -0.525731112119,
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0.447213595500, 0.276393202252, -0.850650808354,
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-0.447213595500, -0.894427191000, 0.0 ,
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-0.447213595500, -0.276393202252, 0.850650808354,
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-0.447213595500, 0.723606797748, 0.525731112119,
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-0.447213595500, 0.723606797748, -0.525731112119,
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-0.447213595500, -0.276393202252, -0.850650808354,
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-1.0, 0.0, 0.0
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};
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/* Normal Vectors:
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* icosahedron_n[i][0] = ( icosahedron_v[icosahedron_vi[i][1]][1] - icosahedron_v[icosahedron_vi[i][0]][1] ) * ( icosahedron_v[icosahedron_vi[i][2]][2] - icosahedron_v[icosahedron_vi[i][0]][2] ) - ( icosahedron_v[icosahedron_vi[i][1]][2] - icosahedron_v[icosahedron_vi[i][0]][2] ) * ( icosahedron_v[icosahedron_vi[i][2]][1] - icosahedron_v[icosahedron_vi[i][0]][1] ) ;
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* icosahedron_n[i][1] = ( icosahedron_v[icosahedron_vi[i][1]][2] - icosahedron_v[icosahedron_vi[i][0]][2] ) * ( icosahedron_v[icosahedron_vi[i][2]][0] - icosahedron_v[icosahedron_vi[i][0]][0] ) - ( icosahedron_v[icosahedron_vi[i][1]][0] - icosahedron_v[icosahedron_vi[i][0]][0] ) * ( icosahedron_v[icosahedron_vi[i][2]][2] - icosahedron_v[icosahedron_vi[i][0]][2] ) ;
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* icosahedron_n[i][2] = ( icosahedron_v[icosahedron_vi[i][1]][0] - icosahedron_v[icosahedron_vi[i][0]][0] ) * ( icosahedron_v[icosahedron_vi[i][2]][1] - icosahedron_v[icosahedron_vi[i][0]][1] ) - ( icosahedron_v[icosahedron_vi[i][1]][1] - icosahedron_v[icosahedron_vi[i][0]][1] ) * ( icosahedron_v[icosahedron_vi[i][2]][0] - icosahedron_v[icosahedron_vi[i][0]][0] ) ;
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*/
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static GLdouble icosahedron_n[ICOSAHEDRON_NUM_FACES*3] =
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{
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0.760845213037948, 0.470228201835026, 0.341640786498800,
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0.760845213036861, -0.179611190632978, 0.552786404500000,
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0.760845213033849, -0.581234022404097, 0,
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0.760845213036861, -0.179611190632978, -0.552786404500000,
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0.760845213037948, 0.470228201835026, -0.341640786498800,
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0.179611190628666, 0.760845213037948, 0.552786404498399,
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0.179611190634277, -0.290617011204044, 0.894427191000000,
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0.179611190633958, -0.940456403667806, 0,
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0.179611190634278, -0.290617011204044, -0.894427191000000,
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0.179611190628666, 0.760845213037948, -0.552786404498399,
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-0.179611190633958, 0.940456403667806, 0,
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-0.179611190634277, 0.290617011204044, 0.894427191000000,
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-0.179611190628666, -0.760845213037948, 0.552786404498399,
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-0.179611190628666, -0.760845213037948, -0.552786404498399,
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-0.179611190634277, 0.290617011204044, -0.894427191000000,
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-0.760845213036861, 0.179611190632978, -0.552786404500000,
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-0.760845213033849, 0.581234022404097, 0,
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-0.760845213036861, 0.179611190632978, 0.552786404500000,
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-0.760845213037948, -0.470228201835026, 0.341640786498800,
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-0.760845213037948, -0.470228201835026, -0.341640786498800,
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};
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/* Vertex indices */
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static GLubyte icosahedron_vi[ICOSAHEDRON_VERT_PER_OBJ] =
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{
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0, 1, 2 ,
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0, 2, 3 ,
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0, 3, 4 ,
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0, 4, 5 ,
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0, 5, 1 ,
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1, 8, 2 ,
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2, 7, 3 ,
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3, 6, 4 ,
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4, 10, 5 ,
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5, 9, 1 ,
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1, 9, 8 ,
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2, 8, 7 ,
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3, 7, 6 ,
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4, 6, 10 ,
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5, 10, 9 ,
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11, 9, 10 ,
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11, 8, 9 ,
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11, 7, 8 ,
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11, 6, 7 ,
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11, 10, 6
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};
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DECLARE_SHAPE_CACHE(icosahedron,Icosahedron,ICOSAHEDRON);
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/* -- Octahedron -- */
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#define OCTAHEDRON_NUM_VERT 6
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#define OCTAHEDRON_NUM_FACES 8
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@ -420,6 +497,7 @@ static void fghCube( GLdouble dSize, GLboolean useWireMode )
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else
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fghDrawGeometry(GL_QUADS,cube_verts,cube_norms,CUBE_VERT_PER_OBJ,useWireMode);
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}
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DECLARE_INTERNAL_DRAW(icosahedron,Icosahedron,ICOSAHEDRON);
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DECLARE_INTERNAL_DRAW(octahedron,Octahedron,OCTAHEDRON);
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DECLARE_INTERNAL_DRAW(tetrahedron,Tetrahedron,TETRAHEDRON);
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@ -1149,93 +1227,6 @@ void FGAPIENTRY glutSolidDodecahedron( void )
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glEnd () ;
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}
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/*
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*
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*/
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static double icos_r[12][3] = {
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{ 1.0, 0.0, 0.0 },
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{ 0.447213595500, 0.894427191000, 0.0 },
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{ 0.447213595500, 0.276393202252, 0.850650808354 },
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{ 0.447213595500, -0.723606797748, 0.525731112119 },
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{ 0.447213595500, -0.723606797748, -0.525731112119 },
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{ 0.447213595500, 0.276393202252, -0.850650808354 },
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{ -0.447213595500, -0.894427191000, 0.0 },
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{ -0.447213595500, -0.276393202252, 0.850650808354 },
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{ -0.447213595500, 0.723606797748, 0.525731112119 },
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{ -0.447213595500, 0.723606797748, -0.525731112119 },
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{ -0.447213595500, -0.276393202252, -0.850650808354 },
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{ -1.0, 0.0, 0.0 }
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};
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static int icos_v [20][3] = {
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{ 0, 1, 2 },
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{ 0, 2, 3 },
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{ 0, 3, 4 },
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{ 0, 4, 5 },
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{ 0, 5, 1 },
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{ 1, 8, 2 },
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{ 2, 7, 3 },
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{ 3, 6, 4 },
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{ 4, 10, 5 },
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{ 5, 9, 1 },
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{ 1, 9, 8 },
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{ 2, 8, 7 },
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{ 3, 7, 6 },
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{ 4, 6, 10 },
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{ 5, 10, 9 },
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{ 11, 9, 10 },
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{ 11, 8, 9 },
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{ 11, 7, 8 },
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{ 11, 6, 7 },
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{ 11, 10, 6 }
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};
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void FGAPIENTRY glutWireIcosahedron( void )
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{
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int i ;
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWireIcosahedron" );
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for ( i = 0; i < 20; i++ )
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{
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double normal[3] ;
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normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) ;
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normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) ;
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normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) ;
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glBegin ( GL_LINE_LOOP ) ;
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glNormal3dv ( normal ) ;
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glVertex3dv ( icos_r[icos_v[i][0]] ) ;
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glVertex3dv ( icos_r[icos_v[i][1]] ) ;
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glVertex3dv ( icos_r[icos_v[i][2]] ) ;
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glEnd () ;
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}
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}
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/*
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*
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*/
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void FGAPIENTRY glutSolidIcosahedron( void )
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{
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int i ;
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSolidIcosahedron" );
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glBegin ( GL_TRIANGLES ) ;
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for ( i = 0; i < 20; i++ )
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{
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double normal[3] ;
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normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) ;
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normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) ;
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normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) ;
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glNormal3dv ( normal ) ;
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glVertex3dv ( icos_r[icos_v[i][0]] ) ;
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glVertex3dv ( icos_r[icos_v[i][1]] ) ;
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glVertex3dv ( icos_r[icos_v[i][2]] ) ;
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}
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glEnd () ;
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}
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/*
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*
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*/
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@ -1329,9 +1320,19 @@ void FGAPIENTRY glutSolidRhombicDodecahedron( void )
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/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
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/*
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* Draws a wireframed cube.
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*/
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/* Macro to generate interface functions */
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#define DECLARE_SHAPE_INTERFACE(nameICaps)\
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void FGAPIENTRY glutWire##nameICaps( void )\
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{\
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWire"#nameICaps );\
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fgh##nameICaps( TRUE );\
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}\
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void FGAPIENTRY glutSolid##nameICaps( void )\
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{\
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSolid"#nameICaps );\
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fgh##nameICaps( FALSE );\
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}
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void FGAPIENTRY glutWireCube( GLdouble dSize )
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{
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWireCube" );
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@ -1343,16 +1344,8 @@ void FGAPIENTRY glutSolidCube( GLdouble dSize )
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fghCube( dSize, FALSE );
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}
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void FGAPIENTRY glutWireOctahedron( void )
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{
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWireOctahedron" );
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fghOctahedron( TRUE );
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}
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void FGAPIENTRY glutSolidOctahedron( void )
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{
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSolidOctahedron" );
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fghOctahedron( FALSE );
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}
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DECLARE_SHAPE_INTERFACE(Icosahedron);
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DECLARE_SHAPE_INTERFACE(Octahedron);
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void FGAPIENTRY glutWireSierpinskiSponge ( int num_levels, GLdouble offset[3], GLdouble scale )
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{
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@ -1365,16 +1358,7 @@ void FGAPIENTRY glutSolidSierpinskiSponge ( int num_levels, GLdouble offset[3],
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fghSierpinskiSponge ( num_levels, offset, scale, FALSE );
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}
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void FGAPIENTRY glutWireTetrahedron( void )
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{
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWireTetrahedron" );
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fghTetrahedron( TRUE );
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}
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void FGAPIENTRY glutSolidTetrahedron( void )
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{
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSolidTetrahedron" );
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fghTetrahedron( FALSE );
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}
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DECLARE_SHAPE_INTERFACE(Tetrahedron);
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/*** END OF FILE ***/
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