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0022876: EDF 8425 SMESH: Get the normal of a face in the GUI

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- Additional change: use the same method to compute normal in TUI and GUI
This commit is contained in:
vsr 2015-02-24 11:25:19 +03:00
parent 5e086fb537
commit 44d75c1021
1 changed files with 2 additions and 20 deletions
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22
src/SMESHGUI/SMESHGUI_Utils.cxx
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@ -29,7 +29,7 @@
#include "SMESHGUI.h"
#include "SMESHGUI_Selection.h"
#include "SMESH_Type.h"
#include "SMESH_MeshAlgos.hxx"
#include <SMDS_MeshNode.hxx>
#include <SMDS_MeshFace.hxx>
@ -373,25 +373,7 @@ namespace SMESH
gp_XYZ getNormale( const SMDS_MeshFace* theFace )
{
gp_XYZ n;
int aNbNode = theFace->NbNodes();
TColgp_Array1OfXYZ anArrOfXYZ(1,4);
SMDS_ElemIteratorPtr aNodeItr = theFace->nodesIterator();
int i = 1;
for ( ; aNodeItr->more() && i <= 4; i++ ) {
SMDS_MeshNode* aNode = (SMDS_MeshNode*)aNodeItr->next();
anArrOfXYZ.SetValue(i, gp_XYZ( aNode->X(), aNode->Y(), aNode->Z() ) );
}
gp_XYZ q1 = anArrOfXYZ.Value(2) - anArrOfXYZ.Value(1);
gp_XYZ q2 = anArrOfXYZ.Value(3) - anArrOfXYZ.Value(1);
n = q1 ^ q2;
if ( aNbNode > 3 ) {
gp_XYZ q3 = anArrOfXYZ.Value(4) - anArrOfXYZ.Value(1);
n += q2 ^ q3;
}
double len = n.Modulus();
if ( len > 0 )
n /= len;
SMESH_MeshAlgos::FaceNormal( theFace, n, /*normalized=*/true );
return n;
}