CMSSW Reference Manual

00001 //<<<<<< INCLUDES                                                       >>>>>>
00002 
00003 #include "Iguana/Inventor/interface/IgSoArrow.h"
00004 #include <Inventor/nodes/SoTranslation.h>
00005 #include <Inventor/nodes/SoRotation.h>
00006 #include <Inventor/nodes/SoRotationXYZ.h>
00007 #include <Inventor/nodes/SoCylinder.h>
00008 #include <Inventor/nodes/SoCone.h>
00009 #include <Inventor/nodes/SoScale.h>
00010 
00011 //<<<<<< PRIVATE DEFINES                                                >>>>>>
00012 //<<<<<< PRIVATE CONSTANTS                                              >>>>>>
00013 //<<<<<< PRIVATE TYPES                                                  >>>>>>
00014 //<<<<<< PRIVATE VARIABLE DEFINITIONS                                   >>>>>>
00015 //<<<<<< PUBLIC VARIABLE DEFINITIONS                                    >>>>>>
00016 //<<<<<< CLASS STRUCTURE INITIALIZATION                                 >>>>>>
00017 
00018 SO_KIT_SOURCE (IgSoArrow);
00019 
00020 //<<<<<< PRIVATE FUNCTION DEFINITIONS                                   >>>>>>
00021 //<<<<<< PUBLIC FUNCTION DEFINITIONS                                    >>>>>>
00022 //<<<<<< MEMBER FUNCTION DEFINITIONS                                    >>>>>>
00023 
00024 void
00025 IgSoArrow::initClass ()
00026 { SO_KIT_INIT_CLASS (IgSoArrow, IgSoShapeKit, "IgSoShapeKit"); }
00027 
00028 IgSoArrow::IgSoArrow (void)
00029 {
00030     SO_KIT_CONSTRUCTOR (IgSoArrow);
00031 
00032     SO_KIT_ADD_FIELD (tail, (0, 0, 0));
00033     SO_KIT_ADD_FIELD (tip, (0, 1, 0));
00034 
00035     SO_KIT_ADD_CATALOG_ENTRY (finalTranslation, SoTranslation,  FALSE, separator,\x0, TRUE);
00036     SO_KIT_ADD_CATALOG_ENTRY (scale,            SoScale,        FALSE, separator,\x0, TRUE);
00037     SO_KIT_ADD_CATALOG_ENTRY (myRotation,       SoRotation,     FALSE, separator,\x0, TRUE);
00038     SO_KIT_ADD_CATALOG_ENTRY (rot,              SoRotationXYZ,  FALSE, separator,\x0, TRUE);
00039     SO_KIT_ADD_CATALOG_ENTRY (zTranslation,     SoTranslation,  FALSE, separator,\x0, TRUE);
00040     SO_KIT_ADD_CATALOG_ENTRY (axisCyl,          SoCylinder,     FALSE, separator,\x0, TRUE);
00041     SO_KIT_ADD_CATALOG_ENTRY (cTranslation,     SoTranslation,  FALSE, separator,\x0, TRUE);
00042     SO_KIT_ADD_CATALOG_ENTRY (axisCone,         SoCone,         FALSE, separator,\x0, TRUE);
00043     SO_KIT_INIT_INSTANCE ();
00044     setUpConnections (true, true);
00045 }
00046 
00047 void
00048 IgSoArrow::refresh (void)
00049 {
00050     static const float  ARROWSIZE = 0.02;
00051     SoTranslation       *finalTranslation    = new SoTranslation;
00052     SoScale             *scale               = new SoScale;
00053     SoRotation          *myRotation          = new SoRotation;
00054     SoRotationXYZ       *rot                 = new SoRotationXYZ;
00055     SoTranslation       *zTranslation        = new SoTranslation;
00056     SoCylinder          *axisCyl             = new SoCylinder;
00057     SoTranslation       *cTranslation        = new SoTranslation;
00058     SoCone              *axisCone            = new SoCone;
00059     SbVec3f             mtail = tail.getValue ();
00060     SbVec3f             mtip  = tip.getValue ();
00061     SbVec3f             mdiff = mtip - mtail;
00062     double              length = mdiff.length ();
00063     SbVec3f             ax = SbVec3f (0, 0, 1).cross (mdiff);
00064     double              an = asin (ax.length () / length);
00065 
00066     if (mdiff[2] < 0)
00067         an = -an;
00068 
00069     finalTranslation->translation.setValue (mtail);
00070     scale->scaleFactor.setValue (length/2, length/2, length/2);
00071     myRotation->rotation.setValue (ax, an);
00072     zTranslation->translation.setValue (0, 1, 0);
00073     rot->axis = SoRotationXYZ::X;
00074     rot->angle = (mdiff[2] < 0) ? -M_PI/2. : M_PI/2.;
00075     axisCyl->radius.setValue (2 * ARROWSIZE);
00076     cTranslation->translation.setValue (0, 1, 0);
00077     axisCone->bottomRadius.setValue (4 * ARROWSIZE);
00078     axisCone->height.setValue (8 * ARROWSIZE);
00079 
00080     setPart ("finalTranslation", finalTranslation);
00081     setPart ("scale", scale);
00082     setPart ("myRotation", myRotation);
00083     setPart ("rot", rot);
00084     setPart ("zTranslation", zTranslation);
00085     setPart ("axisCyl", axisCyl);
00086     setPart ("cTranslation", cTranslation);
00087     setPart ("axisCone", axisCone);
00088 }
IgSoArrow.cc
