EgtGraphics 1.5d5 :

- Gestione materiali
- Facce con front e back diversificati per materiale
- HiddenLine.

SceneGeom.cpp

@@ -91,7 +91,7 @@ Scene::SetMark( Color colMark)
 
 //----------------------------------------------------------------------------
 bool
-Scene::DrawGroup( int nId, int nParentMode, int nParentStat, int nParentMark)
+Scene::DrawGroup( int nId, int nPass, MdStMk cParent)
 {
   // creo un iteratore
    PtrOwner<IGdbIterator> pIter( CreateGdbIterator( m_pGeomDB)) ;
@@ -103,12 +103,12 @@ Scene::DrawGroup( int nId, int nParentMode, int nParentStat, int nParentMark)
       return false ;
 
   // eseguo il disegno
-   return DrawGroup( *pIter, nParentMode, nParentStat, nParentMark) ;
+   return DrawGroup( *pIter, nPass, cParent) ;
 }
 
 //----------------------------------------------------------------------------
 bool
-Scene::DrawGroup( const IGdbIterator& iIter, int nParentMode, int nParentStat, int nParentMark)
+Scene::DrawGroup( const IGdbIterator& iIter, int nPass, MdStMk cParent)
 {
   // recupero il riferimento del gruppo
    Frame3d frFrame ;
@@ -121,34 +121,35 @@ Scene::DrawGroup( const IGdbIterator& iIter, int nParentMode, int nParentStat, i
       double Matrix[OGLMAT_DIM] ;
       if ( FrameToOpenGlMatrix( frFrame, Matrix))
          glMultMatrixd( Matrix) ;
-   }
+   }                                
   // creo un iteratore
    PtrOwner<IGdbIterator> pIter( CreateGdbIterator( m_pGeomDB)) ;
    if ( ! ::IsValid( pIter))
       return false ;
   // scandisco il gruppo
-   bool bNext = pIter->GoToFirstInGroup( iIter) ;
-   while ( bNext) {
+   for ( bool bNext = pIter->GoToFirstInGroup( iIter) ;
+         bNext ;
+         bNext = pIter->GoToNext()) {
      // leggo il tipo di oggetto
       int nGdbType = pIter->GetGdbType() ;
      // recupero e aggiorno il modo dell'oggetto
       int nMode = GDB_MD_STD ;
       pIter->GetMode( nMode) ;
-      nMode = ::CalcMode( nMode, nParentMode) ;
+      nMode = ::CalcMode( nMode, cParent.nMode) ;
      // recupero e aggiorno lo stato dell'oggetto
       int nStat = GDB_ST_ON ;
       pIter->GetStatus( nStat) ;
-      nStat = ::CalcStatus( nStat, nParentStat) ;
+      nStat = ::CalcStatus( nStat, cParent.nStat) ;
       nStat = ::AdjustStatusWithMode( nStat, nMode) ;
      // recupero e aggiorno la marcatura dell'oggetto
       int nMark = GDB_MK_OFF ;
       pIter->GetMark( nMark) ;
-      nMark = ::CalcMark( nMark, nParentMark) ;
+      nMark = ::CalcMark( nMark, cParent.nMark) ;
      // se oggetto geometrico
       if ( nGdbType == GDB_TY_GEO) {
         // se non nascosto, lo disegno
          if ( nStat != GDB_ST_OFF) {
-            if ( ! DrawGeoObj( *pIter, nStat, nMark))
+            if ( ! DrawGeoObj( *pIter, nPass, MdStMk( nMode, nStat, nMark)))
                return false ;
          }
       }
@@ -156,12 +157,10 @@ Scene::DrawGroup( const IGdbIterator& iIter, int nParentMode, int nParentStat, i
       else if ( nGdbType == GDB_TY_GROUP) {
         // se non nascosto, lo disegno
          if ( nStat != GDB_ST_OFF) {
-            if ( ! DrawGroup( *pIter, nMode, nStat, nMark))
+            if ( ! DrawGroup( *pIter, nPass, MdStMk( nMode, nStat, nMark)))
                return false ;
          }
       }
-     // passo al successivo
-      bNext = pIter->GoToNext() ;
    }
   // se necessario, ripristino lo stack delle matrici
    if ( bMatrix)
@@ -172,7 +171,7 @@ Scene::DrawGroup( const IGdbIterator& iIter, int nParentMode, int nParentStat, i
 
 //----------------------------------------------------------------------------
 bool
-Scene::DrawGeoObj( const IGdbIterator& iIter, int nObjStat, int nObjMark)
+Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, MdStMk siObj)
 {
   // recupero l'oggetto geometrico
    IGeoObj* pGeoObj = (const_cast<IGdbIterator*>(&iIter))->GetGeoObj() ;
@@ -260,6 +259,14 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nObjStat, int nObjMark)
         // impostazioni iniziali
          pGraphics->Clear() ;
          pGraphics->AddColor( cCol) ;
+         pGraphics->AddMaterial( cCol, cCol, Color( 192, 192, 192, 50)) ;
+         Color colBack ;
+         float fLum = ( cCol.GetRed() + cCol.GetGreen() + cCol.GetBlue()) / 3 ;
+         colBack.Set( 0.4 * fLum + 0.2 * cCol.GetRed(),
+                      0.4 * fLum + 0.2 * cCol.GetGreen(),
+                      0.4 * fLum + 0.2 * cCol.GetBlue(),
+                      cCol.GetAlpha()) ;
+         pGraphics->AddBackMaterial( colBack) ;
          pGraphics->StartTriangles( pSTM->GetTriangleNum()) ;
         // ciclo sui triangoli della superficie
          Triangle3d Tria ;
@@ -274,8 +281,25 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nObjStat, int nObjMark)
       }
    }
 
+  // se hiddenline
+   if ( m_nShowMode == SM_HIDDENLINE) {
+     // in prima passata disegno solo le superfici
+      if ( nPass == 1  &&  ( pGeoObj->GetType() & GEO_SURF) == 0)
+         return true ;
+   }
+
+  // se shading
+   if ( m_nShowMode == SM_SHADING) {
+     // in prima passata disegno solo le superfici
+      if ( nPass == 1  &&  ( pGeoObj->GetType() & GEO_SURF) == 0)
+         return true ;
+     // in seconda passata disegno solo dimensioni 0 e curve
+      if ( nPass == 2  &&  ( pGeoObj->GetType() & GEO_SURF) != 0)
+         return true ;
+   }
+
   // visualizzo la grafica associata
-   return pGraphics->Draw( nObjStat, nObjMark) ;
+   return pGraphics->Draw( siObj.nStat, siObj.nMark) ;
 }
 
 //----------------------------------------------------------------------------