include/Geant4/G4ParameterisedNavigation.icc

0001 //
0002 // ********************************************************************
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0024 // ********************************************************************
0025 //
0026 // class G4ParameterisedNavigation Inline implementation
0027 //
0028 // --------------------------------------------------------------------
0029
0030 // ********************************************************************
0031 // IdentifyAndPlaceSolid
0032 // ********************************************************************
0033 //
0034 inline G4VSolid* G4ParameterisedNavigation::
0035 IdentifyAndPlaceSolid( G4int num,
0036                        G4VPhysicalVolume *apparentPhys, // PhysV or PhysT
0037                        G4VPVParameterisation *curParam  )
0038 {
0039   G4VSolid *sampleSolid;
0040
0041   sampleSolid = curParam->ComputeSolid(num, apparentPhys);
0042   sampleSolid->ComputeDimensions(curParam, num, apparentPhys);
0043   curParam->ComputeTransformation(num, apparentPhys);
0044
0045   return sampleSolid;
0046 }
0047
0048 // ********************************************************************
0049 // ParamVoxelLocate
0050 // ********************************************************************
0051 //
0052 inline G4SmartVoxelNode*
0053 G4ParameterisedNavigation::ParamVoxelLocate( G4SmartVoxelHeader* pHead,
0054                                        const G4ThreeVector& localPoint )
0055 {
0056   // If no parameterisation axis is specified, adopt default
0057   // location strategy as for placements
0058   //
0059   if ( pHead->GetParamAxis()==kUndefined )
0060   {
0061     fVoxelNode = G4VoxelNavigation::VoxelLocate(pHead,localPoint);
0062   }
0063   else
0064   {
0065     G4double targetHeaderMin, targetHeaderNodeWidth;
0066     G4int targetHeaderNoSlices, targetNodeNo;
0067     EAxis targetHeaderAxis;
0068
0069     targetHeaderAxis = pHead->GetAxis();
0070     targetHeaderNoSlices = G4int(pHead->GetNoSlices());
0071     targetHeaderMin = pHead->GetMinExtent();
0072     targetHeaderNodeWidth = (pHead->GetMaxExtent()-targetHeaderMin)
0073                           / targetHeaderNoSlices;
0074     targetNodeNo = G4int ( (localPoint(targetHeaderAxis)-targetHeaderMin)
0075                            / targetHeaderNodeWidth );
0076     // Rounding protection
0077     //
0078     if ( targetNodeNo<0 )
0079     {
0080       targetNodeNo = 0;
0081     }
0082     else if ( targetNodeNo>=targetHeaderNoSlices )
0083     {
0084       targetNodeNo = targetHeaderNoSlices-1;
0085     }
0086     fVoxelAxis = targetHeaderAxis;
0087     fVoxelNoSlices = targetHeaderNoSlices;
0088     fVoxelSliceWidth = targetHeaderNodeWidth;
0089     fVoxelNodeNo = targetNodeNo;
0090     fVoxelHeader = pHead;
0091     fVoxelNode = pHead->GetSlice(targetNodeNo)->GetNode();
0092   }
0093   return fVoxelNode;
0094 }
0095