| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | //
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| 28 | // $Id: SoTubs.cc,v 1.8 2006/06/29 21:23:07 gunter Exp $
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| 29 | // GEANT4 tag $Name: geant4-08-01-patch-01 $
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| 30 | //
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| 31 | /*-----------------------------HEPVis---------------------------------------*/
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| 32 | /* */
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| 33 | /* Node: SoTubs */
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| 34 | /* Description: Represents the G4Tubs Geant Geometry entity */
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| 35 | /* Author: Joe Boudreau Nov 11 1996 */
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| 36 | /* */
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| 37 | /*--------------------------------------------------------------------------*/
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| 38 |
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| 39 | #ifdef G4VIS_BUILD_OI_DRIVER
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| 40 |
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| 41 | // this :
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| 42 | #include "HEPVis/nodes/SoTubs.h"
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| 43 |
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| 44 | #include <assert.h>
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| 45 | #include <cmath>
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| 46 |
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| 47 | #include <Inventor/SbBox.h>
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| 48 | #include <Inventor/actions/SoGLRenderAction.h>
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| 49 | #include <Inventor/fields/SoSFFloat.h>
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| 50 | #include <Inventor/misc/SoChildList.h>
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| 51 | #include <Inventor/nodes/SoSeparator.h>
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| 52 | #include <Inventor/nodes/SoIndexedFaceSet.h>
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| 53 | #include <Inventor/nodes/SoNormal.h>
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| 54 | #include <Inventor/nodes/SoCoordinate3.h>
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| 55 | #include <Inventor/nodes/SoNormalBinding.h>
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| 56 | #include <Inventor/SoPrimitiveVertex.h>
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| 57 | #include <Inventor/elements/SoTextureCoordinateElement.h>
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| 58 |
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| 59 | #include "HEPVis/SbMath.h"
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| 60 |
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| 61 | // This statement is required
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| 62 | SO_NODE_SOURCE(SoTubs)
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| 63 |
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| 64 | // Constructor
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| 65 | SoTubs::SoTubs() {
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| 66 |
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| 67 |
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| 68 | // This statement is required
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| 69 | SO_NODE_CONSTRUCTOR(SoTubs);
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| 70 |
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| 71 | // Data fields are initialized like this:
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| 72 | SO_NODE_ADD_FIELD(pRMin, (0));
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| 73 | SO_NODE_ADD_FIELD(pRMax, (1));
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| 74 | SO_NODE_ADD_FIELD(pDz, (10));
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| 75 | SO_NODE_ADD_FIELD(pSPhi, (0));
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| 76 | SO_NODE_ADD_FIELD(pDPhi, ((float)(2*M_PI)));
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| 77 | SO_NODE_ADD_FIELD(alternateRep, (NULL));
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| 78 | children = new SoChildList(this);
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| 79 | }
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| 80 |
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| 81 | // Destructor
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| 82 | SoTubs::~SoTubs() {
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| 83 | delete children;
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| 84 | }
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| 85 |
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| 86 |
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| 87 | // initClass
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| 88 | void SoTubs::initClass(){
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| 89 | // This statement is required.
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| 90 | SO_NODE_INIT_CLASS(SoTubs,SoShape,"Shape");
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| 91 | }
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| 92 |
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| 93 | // generatePrimitives
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| 94 | void SoTubs::generatePrimitives(SoAction *action) {
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| 95 | // This variable is used to store each vertex
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| 96 | SoPrimitiveVertex pv;
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| 97 |
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| 98 | // Access the stat from the action
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| 99 | SoState *state = action->getState();
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| 100 |
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| 101 | // See if we have to use a texture coordinate function,
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| 102 | // rather than generating explicit texture coordinates.
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| 103 | SbBool useTexFunction=
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| 104 | (SoTextureCoordinateElement::getType(state) ==
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| 105 | SoTextureCoordinateElement::FUNCTION);
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| 106 |
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| 107 | // If we need to generate texture coordinates with a function,
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| 108 | // we'll need an SoGLTextureCoordinateElement. Otherwise, we'll
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| 109 | // set up the coordinates directly.
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| 110 | const SoTextureCoordinateElement* tce = NULL;
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| 111 | SbVec4f texCoord;
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| 112 | if (useTexFunction) {
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| 113 | tce = SoTextureCoordinateElement::getInstance(state);
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| 114 | }
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| 115 | else {
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| 116 | texCoord[2] = 0.0;
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| 117 | texCoord[3] = 1.0;
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| 118 | }
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| 119 | SbVec3f point, normal;
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| 120 |
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| 121 |
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| 122 | ///////////////////////////////////////////////////////
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| 123 | //-----------------------------------------------------
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| 124 | #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \
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| 125 | point.setValue((float)(x),(float)(y),(float)(z)); \
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| 126 | normal.setValue((float)(nx),(float)(ny),(float)(nz)); \
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| 127 | if (useTexFunction) { \
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| 128 | texCoord=tce->get(point,normal); \
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| 129 | } else { \
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| 130 | texCoord[0]=(float)(s); \
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| 131 | texCoord[1]=(float)(t); \
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| 132 | } \
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| 133 | pv.setPoint(point); \
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| 134 | pv.setNormal(normal); \
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| 135 | pv.setTextureCoords(texCoord); \
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| 136 | shapeVertex(&pv);
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| 137 | //-----------------------------------------------------
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| 138 | ///////////////////////////////////////////////////////
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| 139 |
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| 140 | int NPHI = (int)(2+22*std::fabs(pDPhi.getValue()/(2.0*M_PI)));
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| 141 | double deltaPhi = pDPhi.getValue()/NPHI, phi0 = pSPhi.getValue(),phi1=phi0+pDPhi.getValue();
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| 142 | double rMax=pRMax.getValue(),rMin=pRMin.getValue();
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| 143 | double zMax=pDz.getValue(),zMin=-zMax;
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| 144 | double cosPhi0=std::cos(phi0), sinPhi0=std::sin(phi0);
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| 145 | double cosPhi1=std::cos(phi1), sinPhi1=std::sin(phi1);
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| 146 | double cosDeltaPhi=std::cos(deltaPhi),sinDeltaPhi=std::sin(deltaPhi);
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| 147 | //
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| 148 | // The outer surface!
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| 149 | //
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| 150 | int i;
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| 151 | double sinPhi,cosPhi;
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| 152 | beginShape(action,TRIANGLE_STRIP);
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| 153 | sinPhi=sinPhi0;
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| 154 | cosPhi=cosPhi0;
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| 155 | for (i = 0; i<=NPHI; i++) {
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| 156 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,cosPhi,sinPhi,0);
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| 157 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,cosPhi,sinPhi,0);
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| 158 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 159 | }
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| 160 | endShape();
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| 161 | //
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| 162 | // The inner surface!
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| 163 | //
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| 164 | if(rMin!=0.F) {
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| 165 | beginShape(action,TRIANGLE_STRIP);
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| 166 | sinPhi=sinPhi0;
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| 167 | cosPhi=cosPhi0;
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| 168 | for (i = 0; i<=NPHI; i++) {
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| 169 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,-cosPhi,-sinPhi,0);
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| 170 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,1.0,1.0,-cosPhi,-sinPhi,0);
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| 171 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 172 | }
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| 173 | endShape();
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| 174 | }
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| 175 | if (std::fabs(deltaPhi)<2.0*M_PI) {
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| 176 | //
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| 177 | // The end
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| 178 | //
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| 179 | beginShape(action,TRIANGLE_STRIP);
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| 180 | sinPhi=sinPhi0;
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| 181 | cosPhi=cosPhi0;
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| 182 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,sinPhi,-cosPhi,0);
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| 183 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,sinPhi,-cosPhi,0);
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| 184 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,1.0,0.0,sinPhi,-cosPhi,0);
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| 185 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,1.0,sinPhi,-cosPhi,0);
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| 186 | endShape();
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| 187 | //
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| 188 | // The other end
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| 189 | //
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| 190 | beginShape(action,TRIANGLE_STRIP);
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| 191 | sinPhi=sinPhi1;
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| 192 | cosPhi=cosPhi1;
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| 193 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMax,0.0,0.0,-sinPhi,+cosPhi,0);
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| 194 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMin,1.0,1.0,-sinPhi,+cosPhi,0);
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| 195 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMax,1.0,0.0,-sinPhi,+cosPhi,0);
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| 196 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMin,0.0,1.0,-sinPhi,+cosPhi,0);
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| 197 | endShape();
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| 198 | }
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| 199 | //
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| 200 | // The outer surface at z=+PDZ
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| 201 | //
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| 202 | if(rMin==0.F) {
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| 203 | beginShape(action,TRIANGLE_FAN);
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| 204 | sinPhi=sinPhi0;
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| 205 | cosPhi=cosPhi0;
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| 206 | GEN_VERTEX(pv,0,0,zMax,0.0,0.0,0,0,1);
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| 207 | for (i = 0; i<=NPHI; i++) {
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| 208 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1);
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| 209 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 210 | }
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| 211 | endShape();
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| 212 | //
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| 213 | // The outer surface at z=-PDZ
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| 214 | //
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| 215 | beginShape(action,TRIANGLE_FAN);
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| 216 | sinPhi=sinPhi0;
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| 217 | cosPhi=cosPhi0;
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| 218 | GEN_VERTEX(pv,0,0,zMin,0.0,0.0,0,0,-1);
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| 219 | for (i = 0; i<=NPHI; i++) {
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| 220 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1);
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| 221 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 222 | }
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| 223 | endShape();
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| 224 | } else {
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| 225 | beginShape(action,TRIANGLE_STRIP);
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| 226 | sinPhi=sinPhi0;
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| 227 | cosPhi=cosPhi0;
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| 228 | for (i = 0; i<=NPHI; i++) {
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| 229 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,0,0,1);
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| 230 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1);
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| 231 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 232 | }
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| 233 | endShape();
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| 234 | //
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| 235 | // The outer surface at z=-PDZ
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| 236 | //
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| 237 | beginShape(action,TRIANGLE_STRIP);
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| 238 | sinPhi=sinPhi0;
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| 239 | cosPhi=cosPhi0;
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| 240 | for (i = 0; i<=NPHI; i++) {
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| 241 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,0.0,0,0,-1);
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| 242 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1);
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| 243 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
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| 244 | }
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| 245 | endShape();
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| 246 | }
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| 247 | }
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| 248 |
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| 249 | // getChildren
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| 250 | SoChildList *SoTubs::getChildren() const {
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| 251 | return children;
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| 252 | }
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| 253 |
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| 254 |
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| 255 | // computeBBox
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| 256 | void SoTubs::computeBBox(SoAction *, SbBox3f &box, SbVec3f ¢er ){
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| 257 | SbVec3f vmin(-pRMax.getValue(),-pRMax.getValue(),-pDz.getValue()),
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| 258 | vmax( pRMax.getValue(), pRMax.getValue(), pDz.getValue());
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| 259 | center.setValue(0,0,0);
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| 260 | box.setBounds(vmin,vmax);
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| 261 | }
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| 262 |
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| 263 |
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| 264 | // updateChildren
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| 265 | void SoTubs::updateChildren() {
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| 266 |
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| 267 | // Redraw the G4Tubs....
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| 268 |
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| 269 | assert(children->getLength()==1);
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| 270 | SoSeparator *sep = (SoSeparator *) ( *children)[0];
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| 271 | SoCoordinate3 *theCoordinates = (SoCoordinate3 *) ( sep->getChild(0));
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| 272 | SoNormal *theNormals = (SoNormal *) ( sep->getChild(1));
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| 273 | SoNormalBinding *theNormalBinding = (SoNormalBinding *) ( sep->getChild(2));
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| 274 | SoIndexedFaceSet *theFaceSet = (SoIndexedFaceSet *) ( sep->getChild(3));
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| 275 |
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| 276 |
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| 277 | const int NPHI=24, NPOINTS=2*(2*NPHI+2), NFACES=4*NPHI+2, NINDICES = NFACES*5;
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| 278 | float points[NPOINTS][3],normals[NFACES][3];
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| 279 | #ifdef INVENTOR2_0
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| 280 | static long indices[NINDICES];
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| 281 | #else
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| 282 | static int32_t indices[NINDICES];
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| 283 | #endif
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| 284 |
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| 285 | static int init=0;
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| 286 | double phi, pp, DeltaPhi;
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| 287 |
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| 288 | // Indices need to be generated once! This is here to keep it close to the point
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| 289 | // generation, since otherwise it will be confusing.
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| 290 |
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| 291 | int i;
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| 292 | if (!init) {
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| 293 | init = 1;
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| 294 | // Outer face
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| 295 | for (i = 0; i< NPHI; i++) {
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| 296 | // 0 1 3 2;
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| 297 | indices[5*i+0] = 2*i+0;
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| 298 | indices[5*i+1] = 2*i+1;
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| 299 | indices[5*i+2] = 2*i+3;
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| 300 | indices[5*i+3] = 2*i+2;
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| 301 | indices[5*i+4] = SO_END_FACE_INDEX;
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| 302 | }
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| 303 | // the inner face
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| 304 | for (i=0;i<NPHI;i++) {
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| 305 | indices[5*1*NPHI + 5*i+0] = 2*NPHI+2 + 2*i+0;
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| 306 | indices[5*1*NPHI + 5*i+1] = 2*NPHI+2 + 2*i+1;
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| 307 | indices[5*1*NPHI + 5*i+2] = 2*NPHI+2 + 2*i+3;
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| 308 | indices[5*1*NPHI + 5*i+3] = 2*NPHI+2 + 2*i+2;
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| 309 | indices[5*1*NPHI + 5*i+4] = SO_END_FACE_INDEX;
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| 310 | }
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| 311 | // the top side
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| 312 | for (i=0;i<NPHI;i++) {
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| 313 | indices[5*2*NPHI + 5*i+0] = 2*i+0;
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| 314 | indices[5*2*NPHI + 5*i+1] = 2*i+2;
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| 315 | indices[5*2*NPHI + 5*i+2] = NPOINTS - (2*i+4);
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| 316 | indices[5*2*NPHI + 5*i+3] = NPOINTS - (2*i+2);
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| 317 | indices[5*2*NPHI + 5*i+4] = SO_END_FACE_INDEX;
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| 318 | }
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| 319 | // the bottom side
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| 320 | for (i=0;i<NPHI;i++) {
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| 321 | indices[5*3*NPHI + 5*i+0] = 2*i+1;
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| 322 | indices[5*3*NPHI + 5*i+1] = NPOINTS - (2*i+1);
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| 323 | indices[5*3*NPHI + 5*i+2] = NPOINTS - (2*i+3);
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| 324 | indices[5*3*NPHI + 5*i+3] = 2*i+3;
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| 325 | indices[5*3*NPHI + 5*i+4] = SO_END_FACE_INDEX;
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| 326 | }
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| 327 | // the odd side
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| 328 | indices[5*4*NPHI +0] = 2*NPHI;
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| 329 | indices[5*4*NPHI +1] = 2*NPHI+1;
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| 330 | indices[5*4*NPHI +2] = 2*NPHI+3;
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| 331 | indices[5*4*NPHI +3] = 2*NPHI+2;
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| 332 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
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| 333 | // aother odd side
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| 334 | indices[5*4*NPHI +5 +0] = 0;
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| 335 | indices[5*4*NPHI +5 +1] = NPOINTS-2;
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| 336 | indices[5*4*NPHI +5 +2] = NPOINTS-1;
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| 337 | indices[5*4*NPHI +5 +3] = 1;
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| 338 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
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| 339 | }
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| 340 | // Points need to be generated each time:
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| 341 | if (pDPhi.getValue()<2*M_PI) {
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| 342 | // the odd side
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| 343 | indices[5*4*NPHI +0] = 2*NPHI;
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| 344 | indices[5*4*NPHI +1] = 2*NPHI+1;
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| 345 | indices[5*4*NPHI +2] = 2*NPHI+3;
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| 346 | indices[5*4*NPHI +3] = 2*NPHI+2;
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| 347 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
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| 348 | // aother odd side
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| 349 | indices[5*4*NPHI +5 +0] = 0;
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| 350 | indices[5*4*NPHI +5 +1] = NPOINTS-2;
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| 351 | indices[5*4*NPHI +5 +2] = NPOINTS-1;
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| 352 | indices[5*4*NPHI +5 +3] = 1;
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| 353 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
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| 354 | }
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| 355 | else {
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| 356 | // the odd side
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| 357 | indices[5*4*NPHI +0] = SO_END_FACE_INDEX;
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| 358 | indices[5*4*NPHI +1] = SO_END_FACE_INDEX;
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| 359 | indices[5*4*NPHI +2] = SO_END_FACE_INDEX;
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| 360 | indices[5*4*NPHI +3] = SO_END_FACE_INDEX;
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| 361 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
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| 362 | // aother odd side
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| 363 | indices[5*4*NPHI +5 +0] = SO_END_FACE_INDEX;
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| 364 | indices[5*4*NPHI +5 +1] = SO_END_FACE_INDEX;
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| 365 | indices[5*4*NPHI +5 +2] = SO_END_FACE_INDEX;
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| 366 | indices[5*4*NPHI +5 +3] = SO_END_FACE_INDEX;
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| 367 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
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| 368 | }
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| 369 | // The outer surface
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| 370 | DeltaPhi = pDPhi.getValue()/NPHI, phi = pSPhi.getValue();
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| 371 | for (i = 0; i<=NPHI; i++) {
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| 372 | points[2*i+0][0] = pRMax.getValue()*FCOS(phi);
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| 373 | points[2*i+0][1]= pRMax.getValue()*FSIN(phi);
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| 374 | points[2*i+0][2] = +pDz.getValue();
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| 375 |
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| 376 | points[2*i+1][0] = pRMax.getValue()*FCOS(phi);
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| 377 | points[2*i+1][1]= pRMax.getValue()*FSIN(phi);
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| 378 | points[2*i+1][2] = -pDz.getValue();
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| 379 |
|
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| 380 | pp = phi+DeltaPhi/2.0;
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|---|
| 381 | if (i!=NPHI) {
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| 382 | normals[i][0] = FCOS(pp);
|
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| 383 | normals[i][1] = FSIN(pp);
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|---|
| 384 | normals[i][2] = 0;
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|---|
| 385 | }
|
|---|
| 386 | phi+=DeltaPhi;
|
|---|
| 387 | }
|
|---|
| 388 | // The inner surface
|
|---|
| 389 | phi = pSPhi.getValue() + pDPhi.getValue();
|
|---|
| 390 | for (i = 0; i<=NPHI; i++) {
|
|---|
| 391 | points[2*NPHI+2+2*i+0][0] = pRMin.getValue()*FCOS(phi);
|
|---|
| 392 | points[2*NPHI+2+2*i+0][1] = pRMin.getValue()*FSIN(phi);
|
|---|
| 393 | points[2*NPHI+2+2*i+0][2] = +pDz.getValue();
|
|---|
| 394 | points[2*NPHI+2+2*i+1][0] = pRMin.getValue()*FCOS(phi);
|
|---|
| 395 | points[2*NPHI+2+2*i+1][1] = pRMin.getValue()*FSIN(phi);
|
|---|
| 396 | points[2*NPHI+2+2*i+1][2] = -pDz.getValue();
|
|---|
| 397 | pp = phi-DeltaPhi/2.0;
|
|---|
| 398 | if (i!=NPHI) {
|
|---|
| 399 | normals[NPHI+i][0] = -FCOS(pp);
|
|---|
| 400 | normals[NPHI+i][1] = -FSIN(pp);
|
|---|
| 401 | normals[NPHI+i][2] = 0;
|
|---|
| 402 | }
|
|---|
| 403 | phi-=DeltaPhi;
|
|---|
| 404 | }
|
|---|
| 405 | // The top side
|
|---|
| 406 | for (i=0;i<NPHI;i++) {
|
|---|
| 407 | normals[2*NPHI+i][0]=normals[2*NPHI+i][1]=0;
|
|---|
| 408 | normals[2*NPHI+i][2]= 1.0;
|
|---|
| 409 | }
|
|---|
| 410 | // The bottom side
|
|---|
| 411 | for (i=0;i<NPHI;i++) {
|
|---|
| 412 | normals[3*NPHI+i][0]=normals[3*NPHI+i][1]=0;
|
|---|
| 413 | normals[3*NPHI+i][2]= -1.0;
|
|---|
| 414 | }
|
|---|
| 415 | // The odd side
|
|---|
| 416 | phi = pSPhi.getValue();
|
|---|
| 417 | normals[4*NPHI+0][0]= FSIN(phi);
|
|---|
| 418 | normals[4*NPHI+0][1]= -FCOS(phi);
|
|---|
| 419 | normals[4*NPHI+0][2]=0;
|
|---|
| 420 |
|
|---|
| 421 | // Another odd side
|
|---|
| 422 | phi = pSPhi.getValue()+pDPhi.getValue();
|
|---|
| 423 | normals[4*NPHI+1][0]= -FSIN(phi);
|
|---|
| 424 | normals[4*NPHI+1][1]= +FCOS(phi);
|
|---|
| 425 | normals[4*NPHI+1][2]=0;
|
|---|
| 426 |
|
|---|
| 427 | for (int np=0;np<NPOINTS; np++) theCoordinates->point.set1Value(np,points[np][0],points[np][1],points[np][2]);
|
|---|
| 428 | for (int ni=0;ni<NINDICES;ni++) theFaceSet->coordIndex.set1Value(ni,indices[ni]);
|
|---|
| 429 | for (int nf=0;nf<NFACES;nf++) theNormals->vector.set1Value(nf,normals[nf][0],normals[nf][1],normals[nf][2]);
|
|---|
| 430 | theNormalBinding->value=SoNormalBinding::PER_FACE;
|
|---|
| 431 | }
|
|---|
| 432 |
|
|---|
| 433 | // generateChildren
|
|---|
| 434 | void SoTubs::generateChildren() {
|
|---|
| 435 |
|
|---|
| 436 | // This routines creates one SoSeparator, one SoCoordinate3, and
|
|---|
| 437 | // one SoLineSet, and puts it in the child list. This is done only
|
|---|
| 438 | // once, whereas redrawing the position of the coordinates occurs each
|
|---|
| 439 | // time an update is necessary, in the updateChildren routine.
|
|---|
| 440 |
|
|---|
| 441 | assert(children->getLength() ==0);
|
|---|
| 442 | SoSeparator *sep = new SoSeparator();
|
|---|
| 443 | SoCoordinate3 *theCoordinates = new SoCoordinate3();
|
|---|
| 444 | SoNormal *theNormals = new SoNormal();
|
|---|
| 445 | SoNormalBinding *theNormalBinding = new SoNormalBinding();
|
|---|
| 446 | SoIndexedFaceSet *theFaceSet = new SoIndexedFaceSet();
|
|---|
| 447 | //
|
|---|
| 448 | // This line costs some in render quality! but gives speed.
|
|---|
| 449 | //
|
|---|
| 450 | sep->addChild(theCoordinates);
|
|---|
| 451 | sep->addChild(theNormals);
|
|---|
| 452 | sep->addChild(theNormalBinding);
|
|---|
| 453 | sep->addChild(theFaceSet);
|
|---|
| 454 | children->append(sep);
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 | // generateAlternateRep
|
|---|
| 458 | void SoTubs::generateAlternateRep() {
|
|---|
| 459 |
|
|---|
| 460 | // This routine sets the alternate representation to the child
|
|---|
| 461 | // list of this mode.
|
|---|
| 462 |
|
|---|
| 463 | if (children->getLength() == 0) generateChildren();
|
|---|
| 464 | updateChildren();
|
|---|
| 465 | alternateRep.setValue((SoSeparator *) ( *children)[0]);
|
|---|
| 466 | }
|
|---|
| 467 |
|
|---|
| 468 | // clearAlternateRep
|
|---|
| 469 | void SoTubs::clearAlternateRep() {
|
|---|
| 470 | alternateRep.setValue(NULL);
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | #endif
|
|---|
