Gabriele Cosmo
81 lines
3.2 KiB
Plaintext
81 lines
3.2 KiB
Plaintext
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4ParameterisedNavigation.icc,v 1.5 2005/06/14 16:09:43 japost Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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//
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//
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// class G4ParameterisedNavigation Inline implementation
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//
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// --------------------------------------------------------------------
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// ********************************************************************
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// ParamVoxelLocate
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// ********************************************************************
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//
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inline
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G4SmartVoxelNode*
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G4ParameterisedNavigation::ParamVoxelLocate( G4SmartVoxelHeader* pHead,
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const G4ThreeVector& localPoint )
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{
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// If no parameterisation axis is specified, adopt default
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// location strategy as for placements
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//
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if ( pHead->GetParamAxis()==kUndefined )
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{
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fVoxelNode = G4VoxelNavigation::VoxelLocate(pHead,localPoint);
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}
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else
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{
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G4double targetHeaderMin, targetHeaderNodeWidth;
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G4int targetHeaderNoSlices, targetNodeNo;
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EAxis targetHeaderAxis;
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targetHeaderAxis = pHead->GetAxis();
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targetHeaderNoSlices = pHead->GetNoSlices();
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targetHeaderMin = pHead->GetMinExtent();
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targetHeaderNodeWidth = (pHead->GetMaxExtent()-targetHeaderMin)
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/ targetHeaderNoSlices;
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targetNodeNo = G4int ( (localPoint(targetHeaderAxis)-targetHeaderMin)
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/ targetHeaderNodeWidth );
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// Rounding protection
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//
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if ( targetNodeNo<0 )
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{
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targetNodeNo = 0;
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}
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else if ( targetNodeNo>=targetHeaderNoSlices )
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{
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targetNodeNo = targetHeaderNoSlices-1;
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}
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fVoxelAxis = targetHeaderAxis;
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fVoxelNoSlices = targetHeaderNoSlices;
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fVoxelSliceWidth = targetHeaderNodeWidth;
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fVoxelNodeNo = targetNodeNo;
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fVoxelHeader = pHead;
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fVoxelNode = pHead->GetSlice(targetNodeNo)->GetNode();
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}
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return fVoxelNode;
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}
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