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use linked nodes to get an upward direction when defining orientation

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eap 2010-09-07 06:35:44 +00:00
parent ea6aa32f23
commit b5eb9a6a03
1 changed files with 3 additions and 1 deletions
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4
src/SMDS/SMDS_VolumeTool.cxx
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@ -518,8 +518,10 @@ bool SMDS_VolumeTool::Set (const SMDS_MeshElement* theVolume)
// define volume orientation
XYZ botNormal;
GetFaceNormal( 0, botNormal.x, botNormal.y, botNormal.z );
const SMDS_MeshNode* topNode = myVolumeNodes[ myVolumeNbNodes - 1 ];
const SMDS_MeshNode* botNode = myVolumeNodes[ 0 ];
int topNodeIndex = myVolume->NbCornerNodes() - 1;
while ( !IsLinked( 0, topNodeIndex )) --topNodeIndex;
const SMDS_MeshNode* topNode = myVolumeNodes[ topNodeIndex ];
XYZ upDir (topNode->X() - botNode->X(),
topNode->Y() - botNode->Y(),
topNode->Z() - botNode->Z() );