Changeset 290

Timestamp:

09/19/05 03:47:29 (19 years ago)

Author:

mattausch

Message:

 

Location:

trunk/VUT/GtpVisibilityPreprocessor/src

Files:

• Plane3.h (modified) (1 diff)
• Polygon3.cpp (modified) (1 diff)
• ViewCellBsp.cpp (modified) (3 diffs)

trunk/VUT/GtpVisibilityPreprocessor/src/Plane3.h

@@ -48 +48 @@
     if (signum(dv) == 0)
         {
-                if (coplanar) 
-                        (*coplanar) = true;     
-        
+                if (coplanar) (*coplanar) = true;       
+                if (t) (*t) = 1;
                 return a;
         }
+        
+    float u = - Distance(a) / dv; // TODO: could be done more efficiently
     
-    float u = - Distance(a) / dv; // TODO: could be done more efficiently
-    //Debug << "t: " << u << ", b - a: " << v << ", norm: " << mNormal << ", dist(a): " << - Distance(a) << ", dv: " << dv << endl;
-    if (coplanar) 
-      (*coplanar) = false;
-    
-    if (t) 
-      (*t) = u;
-    
+        if (coplanar) (*coplanar) = false;
+        if (t) (*t) = u;
+        
+        //Debug << "t: " << u << ", b - a: " << v << ", norm: " << mNormal << ", dist(a): " << - Distance(a) << ", dv: " << dv << endl;
     //return a - Distance(a) * b / dv + Distance(a) * a / dv; // NOTE: gives better precision than calclulating a + u * v
     return a + u * v;

trunk/VUT/GtpVisibilityPreprocessor/src/Polygon3.cpp

@@ -63 +63 @@
                                 //-- plane - line intersection
                                 Vector3 splitPt = partition->FindIntersection(ptA, ptB);
-                                Debug << "front split pt " << splitPt << " ptA " << ptA << " ptB " << ptB << " side " << sideB << endl;
+                                Debug << "fpg " << splitPt << " side " << partition->Side(splitPt, SIDE_TOLERANCE) << 
+                                        "\nptA " << ptA << " side " << sideA << "\nptB " << ptB << " side " << sideB << " " << Distance(ptB, splitPt) << endl;
                                 if (!foundSplit || (SqrDistance(splitPt, prevSplitPt) > SIDE_TOLERANCE_SQRD))
                                 {

trunk/VUT/GtpVisibilityPreprocessor/src/ViewCellBsp.cpp

@@ -185 +185 @@
 Debug << "*************\n";
 Debug << "initial poly\n" << *poly << endl;
-                                //-- split polygon
+                                //-- split polygon into front and back part
                                 poly->Split(&mPlane, front_piece, back_piece);
-                                ++ splits;
+
+                                ++ splits; // increase number of splits
                         
-                                //Debug << "poly\n" << *poly << "split front piece not valid\n" << *front_piece << endl;
-                                //Debug << "poly\n" << *poly << "split back piece not valid\n" << *back_piece << endl;
-
-                                if (front_piece->CheckValid())
+                                if (front_piece->mVertices.size() >= 3) // check if polygon still valid 
                                         frontPolys->push_back(front_piece);
-                                else
-                                        DEL_PTR(front_piece);
+                                else{
+                                        Debug << "poly\n" << *poly << "split front piece not valid\n" << *front_piece << endl;
+                                        DEL_PTR(front_piece);}
                                 
-                                //if (back_piece->CheckValid())
+                                if (back_piece->mVertices.size() >= 3) // check if polygon still valid
                                         backPolys->push_back(back_piece);
-                                //else
-                                //      DEL_PTR(back_piece);
+                                else{
+                                        Debug << "poly\n" << *poly << "split back piece not valid\n" << *back_piece << endl;
+                                        DEL_PTR(back_piece);}
+                                
 Debug << "*************\n";
 #ifdef _DEBUG
@@ -518 +519 @@
         // copy view cell meshes into one big polygon soup
         PolygonContainer *polys = new PolygonContainer();
-        Copy2PolygonSoup(viewCells, *polys);
+        mStat.polys = Copy2PolygonSoup(viewCells, *polys);
 
         // construct tree from viewcell polygons
@@ -626 +627 @@
                                                                                   &coincident);
 
-        if (coincident.size() == 0) 
-        {
-                Debug << "size is zero at depth " << tData.mDepth << ", #back polys: " << (int)backPolys->size() << ", #front polys: " << (int)frontPolys->size() << endl;
-                if (frontPolys) Debug << "front poly: " << *frontPolys->back() << endl;
+        if ((backPolys->size() == 0) && (coincident.size() > 1)) 
+        {
+                Debug << "WARNING: size " << coincident.size() << " at depth " << tData.mDepth << ", #back polys: " << (int)backPolys->size() << ", #front polys: " << (int)frontPolys->size() << endl;
+                for (int i=0; i<coincident.size();++i)
+                        Debug << "coincident " << i << " vc " << coincident[i]->mParent << endl;
         }
         //Debug << "coincident size: " << coincident.size() << endl;