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Geant4/visualization/OpenInventor/src/SoBox.cc

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Differences between /visualization/OpenInventor/src/SoBox.cc (Version 11.3.0) and /visualization/OpenInventor/src/SoBox.cc (Version 11.0.p3,)


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  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
  7 // * conditions of the Geant4 Software License    
  8 // * LICENSE and available at  http://cern.ch/    
  9 // * include a list of copyright holders.         
 10 // *                                              
 11 // * Neither the authors of this software syst    
 12 // * institutes,nor the agencies providing fin    
 13 // * work  make  any representation or  warran    
 14 // * regarding  this  software system or assum    
 15 // * use.  Please see the license in the file     
 16 // * for the full disclaimer and the limitatio    
 17 // *                                              
 18 // * This  code  implementation is the result     
 19 // * technical work of the GEANT4 collaboratio    
 20 // * By using,  copying,  modifying or  distri    
 21 // * any work based  on the software)  you  ag    
 22 // * use  in  resulting  scientific  publicati    
 23 // * acceptance of all terms of the Geant4 Sof    
 24 // *******************************************    
 25 //                                                
 26 //                                                
 27 //                                                
 28 //                                                
 29 /*----------------------------HEPVis----------    
 30 /*                                                
 31 /* Node:             SoBox                        
 32 /* Description:      Represents the G4Box Gean    
 33 /* Author:           Joe Boudreau Nov 11 1996     
 34 /*                                                
 35 /*--------------------------------------------    
 36                                                   
 37 // this :                                         
 38 #include "HEPVis/nodes/SoBox.h"                   
 39                                                   
 40 #include <assert.h>                               
 41 #include <cmath>                                  
 42                                                   
 43 #include <Inventor/SbBox.h>                       
 44 #include <Inventor/fields/SoSFFloat.h>            
 45 #include <Inventor/misc/SoChildList.h>            
 46 #include <Inventor/nodes/SoSeparator.h>           
 47 #include <Inventor/nodes/SoCube.h>                
 48 #include <Inventor/nodes/SoScale.h>               
 49 #include <Inventor/actions/SoAction.h>            
 50 #include <Inventor/nodes/SoIndexedFaceSet.h>      
 51 #include <Inventor/SoPrimitiveVertex.h>           
 52 #include <Inventor/elements/SoTextureCoordinat    
 53                                                   
 54 // This statement is required                     
 55 SO_NODE_SOURCE(SoBox)                             
 56                                                   
 57 // Constructor                                    
 58 SoBox::SoBox() {                                  
 59   // This statement is required                   
 60   SO_NODE_CONSTRUCTOR(SoBox);                     
 61                                                   
 62   // Data fields are initialized like this:       
 63   SO_NODE_ADD_FIELD(fDx,                (1.0))    
 64   SO_NODE_ADD_FIELD(fDy,                (1.0))    
 65   SO_NODE_ADD_FIELD(fDz,                (1.0))    
 66   SO_NODE_ADD_FIELD(alternateRep,       (NULL)    
 67   children = new SoChildList(this);               
 68 }                                                 
 69                                                   
 70 // Destructor                                     
 71 SoBox::~SoBox() {                                 
 72  delete children;                                 
 73 }                                                 
 74                                                   
 75                                                   
 76 // initClass                                      
 77 void SoBox::initClass(){                          
 78   // This statement is required.                  
 79   static bool first = true;                       
 80   if (first) {                                    
 81     first = false;                                
 82     SO_NODE_INIT_CLASS(SoBox,SoShape,"Shape");    
 83   }                                               
 84 }                                                 
 85                                                   
 86                                                   
 87 // generatePrimitives                             
 88 void SoBox::generatePrimitives(SoAction *actio    
 89   // This variable is used to store each verte    
 90   SoPrimitiveVertex pv;                           
 91                                                   
 92   // Access the stat from the action              
 93   SoState *state = action->getState();            
 94                                                   
 95   // See if we have to use a texture coordinat    
 96   // rather than generating explicit texture c    
 97   SbBool useTexFunction=                          
 98     (SoTextureCoordinateElement::getType(state    
 99      SoTextureCoordinateElement::FUNCTION);       
100                                                   
101   // If we need to generate texture coordinate    
102   // we'll need an SoGLTextureCoordinateElemen    
103   // set up the coordinates directly.             
104   const SoTextureCoordinateElement *tce = NULL    
105   SbVec4f texCoord;                               
106   if (useTexFunction) {                           
107     tce = SoTextureCoordinateElement::getInsta    
108   }                                               
109   else {                                          
110     texCoord[2] = 0.0;                            
111     texCoord[3] = 1.0;                            
112   }                                               
113   SbVec3f point, normal;                          
114                                                   
115                                                   
116   //////////////////////////////////////////      
117   //----------------------------------------      
118 #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz)  \      
119   point.setValue(x,y,z);                   \      
120   normal.setValue(nx,ny,nz);               \      
121   if (useTexFunction) {                    \      
122     texCoord=tce->get(point,normal);       \      
123   }                                        \      
124   else {                                   \      
125     texCoord[0]=s;                         \      
126     texCoord[1]=t;                         \      
127   }                                        \      
128   pv.setPoint(point);                      \      
129   pv.setNormal(normal);                    \      
130   pv.setTextureCoords(texCoord);           \      
131   shapeVertex(&pv);                               
132   //----------------------------------------      
133   //////////////////////////////////////////      
134                                                   
135   const int NPOINTS=8, NFACES=6, NINDICES = NF    
136   int indices[NINDICES] = {3,2,1,0, SO_END_FAC    
137          4,5,6,7, SO_END_FACE_INDEX,  //z fron    
138          0,1,5,4, SO_END_FACE_INDEX,  //y up.     
139          1,2,6,5, SO_END_FACE_INDEX,  //x left    
140          2,3,7,6, SO_END_FACE_INDEX,  //y down    
141          3,0,4,7, SO_END_FACE_INDEX}; //x righ    
142                                                   
143                                                   
144   // points for the eight vertices                
145   float points[NPOINTS][3];                       
146   points[0][0] =  fDx.getValue();                 
147   points[0][1] =  fDy.getValue();                 
148   points[0][2] = -fDz.getValue();                 
149                                                   
150   points[1][0] = -fDx.getValue();                 
151   points[1][1] =  fDy.getValue();                 
152   points[1][2] = -fDz.getValue();                 
153                                                   
154   points[2][0] = -fDx.getValue();                 
155   points[2][1] = -fDy.getValue();                 
156   points[2][2] = -fDz.getValue();                 
157                                                   
158   points[3][0] =  fDx.getValue();                 
159   points[3][1] = -fDy.getValue();                 
160   points[3][2] = -fDz.getValue();                 
161                                                   
162   points[4][0] =  fDx.getValue();                 
163   points[4][1] =  fDy.getValue();                 
164   points[4][2] =  fDz.getValue();                 
165                                                   
166   points[5][0] = -fDx.getValue();                 
167   points[5][1] =  fDy.getValue();                 
168   points[5][2] =  fDz.getValue();                 
169                                                   
170   points[6][0] = -fDx.getValue();                 
171   points[6][1] = -fDy.getValue();                 
172   points[6][2] =  fDz.getValue();                 
173                                                   
174   points[7][0] =  fDx.getValue();                 
175   points[7][1] = -fDy.getValue();                 
176   points[7][2] =  fDz.getValue();                 
177                                                   
178   float normals[NFACES][3];                       
179   //z back.                                       
180   normals[0][0] =  0  ; normals[0][1] =    0;     
181   //z front.                                      
182   normals[1][0] =  0  ; normals[1][1] =    0;     
183   //y up.                                         
184   normals[2][0] =  0  ; normals[2][1] =    1;     
185   //x left.                                       
186   normals[3][0] = -1  ; normals[3][1] =    0;     
187   //y down.                                       
188   normals[4][0] =  0  ; normals[4][1] =   -1;     
189   //x right.                                      
190   normals[5][0] =  1  ; normals[5][1] =    0;     
191                                                   
192   float x,y,z;                                    
193   int   index;                                    
194   for (int nf=0;nf<NFACES;nf++) {                 
195     beginShape(action,TRIANGLE_FAN);              
196     index = indices[nf * 5];                      
197     x = points[index][0];                         
198     y = points[index][1];                         
199     z = points[index][2];                         
200     GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0]    
201     index = indices[nf * 5 + 1];                  
202     x = points[index][0];                         
203     y = points[index][1];                         
204     z = points[index][2];                         
205     GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0]    
206     index = indices[nf * 5 + 2];                  
207     x = points[index][0];                         
208     y = points[index][1];                         
209     z = points[index][2];                         
210     GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0]    
211     index = indices[nf * 5 + 3];                  
212     x = points[index][0];                         
213     y = points[index][1];                         
214     z = points[index][2];                         
215     GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0]    
216     endShape();                                   
217   }                                               
218 }                                                 
219                                                   
220 // getChildren                                    
221 SoChildList *SoBox::getChildren() const {         
222   return children;                                
223 }                                                 
224                                                   
225                                                   
226 // computeBBox                                    
227 void SoBox::computeBBox(SoAction *, SbBox3f &b    
228   SbVec3f vmin(-fDx.getValue(),-fDy.getValue()    
229           vmax( fDx.getValue(), fDy.getValue()    
230   center.setValue(0,0,0);                         
231   box.setBounds(vmin,vmax);                       
232 }                                                 
233                                                   
234                                                   
235                                                   
236                                                   
237 // updateChildren                                 
238 void SoBox::updateChildren() {                    
239                                                   
240                                                   
241   // Redraw the G4Box....                         
242                                                   
243   assert(children->getLength()==1);               
244   SoSeparator       *sep                = (SoS    
245   SoScale           *scale              = (SoS    
246   //SoCube            *cube               = (S    
247   scale->scaleFactor.setValue(fDx.getValue(),     
248 }                                                 
249                                                   
250 // generateChildren                               
251 void SoBox::generateChildren() {                  
252                                                   
253   // A box consists of a set of scale factors     
254   // cube.                                        
255                                                   
256   assert(children->getLength() ==0);              
257   SoSeparator      *sep              = new SoS    
258   SoScale          *scale            = new SoS    
259   SoCube           *cube             = new SoC    
260                                                   
261   sep->addChild(scale);                           
262   sep->addChild(cube);                            
263   children->append(sep);                          
264 }                                                 
265                                                   
266 // generateAlternateRep                           
267 void SoBox::generateAlternateRep() {              
268                                                   
269   // This routine sets the alternate represent    
270   // list of this mode.                           
271                                                   
272   if (children->getLength() == 0) generateChil    
273   updateChildren();                               
274   alternateRep.setValue((SoSeparator *)  ( *ch    
275 }                                                 
276                                                   
277 // clearAlternateRep                              
278 void SoBox::clearAlternateRep() {                 
279   alternateRep.setValue(NULL);                    
280 }                                                 
281