Some bugfixes for interpolation plugin

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@11214 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/plugins/interpolation/DualEdgeTriangulation.cc

@@ -77,7 +77,7 @@ void DualEdgeTriangulation::addLine( Line3D* line, bool breakline )
     for ( i = 0;i < line->getSize();i++ )
     {
       line->goToNext();
-      actpoint = /*mDecorator->*/addPoint( line->getPoint() );
+      actpoint = mDecorator->addPoint( line->getPoint() );
       if ( actpoint != -100 )
       {
         i++;
@@ -94,7 +94,7 @@ void DualEdgeTriangulation::addLine( Line3D* line, bool breakline )
     for ( ;i < line->getSize();i++ )
     {
       line->goToNext();
-      currentpoint = /*mDecorator->*/addPoint( line->getPoint() );
+      currentpoint = mDecorator->addPoint( line->getPoint() );
       if ( currentpoint != -100 && actpoint != -100 && currentpoint != actpoint )//-100 is the return value if the point could not be not inserted
       {
         insertForcedSegment( actpoint, currentpoint, breakline );

src/plugins/interpolation/DualEdgeTriangulation.h

@@ -43,6 +43,7 @@ class DualEdgeTriangulation: public Triangulation
     DualEdgeTriangulation();
     DualEdgeTriangulation( int nop, Triangulation* decorator );
     virtual ~DualEdgeTriangulation();
+    void setDecorator(Triangulation* d){mDecorator = d;}
     /**Adds a line (e.g. a break-, structure- or an isoline) to the triangulation. The class takes ownership of the line object and its points*/
     void addLine( Line3D* line, bool breakline );
     /**Adds a point to the triangulation and returns the number of this point in case of success or -100 in case of failure*/
@@ -191,6 +192,10 @@ inline DualEdgeTriangulation::DualEdgeTriangulation( int nop, Triangulation* dec
 {
   mPointVector.reserve( nop );
   mHalfEdge.reserve( nop );
+  if(!mDecorator)
+  {
+    mDecorator = this;
+  }
 }
 
 inline double DualEdgeTriangulation::getXMax() const

src/plugins/interpolation/qgsinterpolator.cpp

@@ -359,5 +359,6 @@ int QgsInterpolator::addVerticesToCache( QgsGeometry* geom, bool zCoord, double
     default:
       break;
   }
+  mDataIsCached = true;
   return 0;
 }