CMSSW Reference Manual

00001 //<<<<<< INCLUDES                                                       >>>>>>
00002 
00003 #include "Iguana/Inventor/interface/IgSoG4Trap.h"
00004 #include <Inventor/nodes/SoIndexedFaceSet.h>
00005 #include <Inventor/nodes/SoVertexProperty.h>
00006 
00007 //<<<<<< PRIVATE DEFINES                                                >>>>>>
00008 //<<<<<< PRIVATE CONSTANTS                                              >>>>>>
00009 //<<<<<< PRIVATE TYPES                                                  >>>>>>
00010 //<<<<<< PRIVATE VARIABLE DEFINITIONS                                   >>>>>>
00011 //<<<<<< PUBLIC VARIABLE DEFINITIONS                                    >>>>>>
00012 //<<<<<< CLASS STRUCTURE INITIALIZATION                                 >>>>>>
00013 
00014 SO_KIT_SOURCE (IgSoG4Trap);
00015 
00016 //<<<<<< PRIVATE FUNCTION DEFINITIONS                                   >>>>>>
00017 //<<<<<< PUBLIC FUNCTION DEFINITIONS                                    >>>>>>
00018 //<<<<<< MEMBER FUNCTION DEFINITIONS                                    >>>>>>
00019 
00020 void
00021 IgSoG4Trap::initClass (void)
00022 { SO_KIT_INIT_CLASS (IgSoG4Trap, IgSoShapeKit, "IgSoShapeKit"); }
00023 
00024 IgSoG4Trap::IgSoG4Trap (void)
00025 {
00026     SO_KIT_CONSTRUCTOR (IgSoG4Trap);
00027     SO_KIT_ADD_FIELD (dz,    (1.0));
00028     SO_KIT_ADD_FIELD (theta, (0.0));
00029     SO_KIT_ADD_FIELD (phi,   (0.0));
00030     SO_KIT_ADD_FIELD (dy1,   (1.0));
00031     SO_KIT_ADD_FIELD (dx1,   (1.0));
00032     SO_KIT_ADD_FIELD (dx2,   (1.0));
00033     SO_KIT_ADD_FIELD (dy2,   (1.0));
00034     SO_KIT_ADD_FIELD (dx3,   (1.0));
00035     SO_KIT_ADD_FIELD (dx4,   (1.0));
00036     SO_KIT_ADD_FIELD (alp1,  (0.0));
00037     SO_KIT_ADD_FIELD (alp2,  (0.0));
00038     SO_KIT_ADD_CATALOG_ENTRY (faces, SoIndexedFaceSet, FALSE, separator,\x0, TRUE);
00039     SO_KIT_INIT_INSTANCE ();
00040     setUpConnections (true, true);
00041 }
00042 
00043 void
00044 IgSoG4Trap::refresh (void)
00045 {
00046     // FIXME: Only do non-zero faces
00047     static const int    NPOINTS = 8;
00048     static const int    NFACES = 6;
00049     static const int    NINDICES = NFACES*5;
00050 
00051     SoIndexedFaceSet    *faces = new SoIndexedFaceSet;
00052     SoVertexProperty    *vtx = new SoVertexProperty;
00053     float               dy1TAlp1 = dy1.getValue () * tan (alp1.getValue ());
00054     float               dy2TAlp2 = dy2.getValue () * tan (alp2.getValue ());
00055     float               dzTThetaCPhi = dz.getValue ()
00056                                        * tan (theta.getValue ())
00057                                        * cos (phi.getValue ());
00058     float               dzTThetaSPhi = dz.getValue ()
00059                                        * tan (theta.getValue ())
00060                                        * sin (phi.getValue ());
00061     static const int    indices [NINDICES] = { 3,2,1,0, SO_END_FACE_INDEX,
00062                                                4,5,6,7, SO_END_FACE_INDEX,
00063                                                0,1,5,4, SO_END_FACE_INDEX, 
00064                                                1,2,6,5, SO_END_FACE_INDEX,
00065                                                2,3,7,6, SO_END_FACE_INDEX,
00066                                                3,0,4,7, SO_END_FACE_INDEX };
00067     float               points [NPOINTS][3] = {
00068         {  dx2.getValue ()+dy1TAlp1 - dzTThetaCPhi,  dy1.getValue () - dzTThetaSPhi, -dz.getValue () },
00069         { -dx2.getValue ()+dy1TAlp1 - dzTThetaCPhi,  dy1.getValue () - dzTThetaSPhi, -dz.getValue () },
00070         { -dx1.getValue ()-dy1TAlp1 - dzTThetaCPhi, -dy1.getValue () - dzTThetaSPhi, -dz.getValue () },
00071         {  dx1.getValue ()-dy1TAlp1 - dzTThetaCPhi, -dy1.getValue () - dzTThetaSPhi, -dz.getValue () },
00072         {  dx4.getValue ()+dy2TAlp2 + dzTThetaCPhi,  dy2.getValue () + dzTThetaSPhi,  dz.getValue () },
00073         { -dx4.getValue ()+dy2TAlp2 + dzTThetaCPhi,  dy2.getValue () + dzTThetaSPhi,  dz.getValue () },
00074         { -dx3.getValue ()-dy2TAlp2 + dzTThetaCPhi, -dy2.getValue () + dzTThetaSPhi,  dz.getValue () },
00075         {  dx3.getValue ()-dy2TAlp2 + dzTThetaCPhi, -dy2.getValue () + dzTThetaSPhi,  dz.getValue () }
00076     };
00077 
00078     for (int i = 0; i < NPOINTS; ++i)
00079         vtx->vertex.set1Value (i, points[i][0], points[i][1], points[i][2]);
00080 
00081     for (int i = 0; i < 6; ++i)
00082     {
00083         SbVec3f p0 = vtx->vertex [indices [5*i + 0]]; 
00084         SbVec3f p1 = vtx->vertex [indices [5*i + 1]]; 
00085         SbVec3f p2 = vtx->vertex [indices [5*i + 2]]; 
00086         SbVec3f normal = (p1-p0).cross (p2-p0);
00087         normal.normalize ();
00088         vtx->normal.set1Value (i, normal);
00089     }
00090 
00091     vtx->normalBinding = SoVertexProperty::PER_FACE;
00092     faces->coordIndex.setValues (0, NINDICES, indices);
00093     faces->vertexProperty = vtx;
00094 
00095     // Set parts
00096     setPart ("faces", faces);
00097 }
IgSoG4Trap.cc
