code cleanup

README

@@ -1,4 +1,4 @@
-==================
+==================
 INSTALLATION GUIDE
 ==================
  
@@ -6,7 +6,7 @@ Dependencies
 ------------
 
   Core poly2tri lib:
-    - Standard Template Library
+  - Standard Template Library
   
   Testbed:
   - gcc
@@ -17,7 +17,7 @@ Dependencies
 Waf (http://code.google.com/p/waf/) is used to compile the testbed, and  
 the Python waf script (86kb) is included in the repositoty.
  
-Building the testbed
+Building the Testbed
 ----------------------------------------------
 
 Posix/MSYS environment:
@@ -37,4 +37,4 @@ p2t <data file> <zoom>
 
 Example:
 
-  ./build/default/p2.exe testbed/data/dude.dat 1.0
+  ./build/default/p2t testbed/data/dude.dat 1.0

poly2tri/sweep/advancing_front.cc

@@ -30,9 +30,11 @@
  */
 #include "advancing_front.h"
 
-AdvancingFront::AdvancingFront()
+AdvancingFront::AdvancingFront(Node& head, Node& tail)
 {
-  head_ = tail_ = search_node_ = NULL;
+  head_ = &head;
+  tail_ = &tail;
+  search_node_ = &head;
 }
 
 Node* AdvancingFront::Locate(const double& x)
@@ -42,17 +44,20 @@ Node* AdvancingFront::Locate(const double& x)
   if (x < node->value) {
     //printf("<: - %f,%f - %p\n", x, node->value, node->next);
     while ((node = node->prev) != NULL) {
+      //printf("%p - %p\n", node, node->prev);
       if (x >= node->value) {
         search_node_ = node;
+        //printf("\nSN1: %p - %p\n", search_node_, search_node_->next);
         return node;
       }
     }
   } else {
-    //printf("%p - %p\n", node, node->next);
     //printf(">: %f - %f\n", x, node->value);
     while ((node = node->next) != NULL) {
+      //printf("%p - %p\n", node, node->next);
       if (x < node->value) {
         search_node_ = node->prev;
+        //printf("\nSN2: %p - %p\n", search_node_, search_node_->next);
         return node->prev;
       }
     }
@@ -66,11 +71,12 @@ Node* AdvancingFront::FindSearchNode(const double& x)
   return search_node_;
 }
 
-Node* AdvancingFront::LocatePoint(Point* point)
+Node* AdvancingFront::LocatePoint(const Point* point)
 {
   const double px = point->x;
   Node* node = FindSearchNode(px);
   const double nx = node->point->x;
+  printf("AF: %p - %p\n", node, node->next);
   
   if (px == nx) {
     if (point != node->point) {
@@ -85,17 +91,20 @@ Node* AdvancingFront::LocatePoint(Point* point)
     }
   } else if (px < nx) {
     while ((node = node->prev) != NULL) {
+      //printf("1 - %p - %p\n", node, node->next);
       if (point == node->point) {
         break;
       }
     }
   } else {
     while ((node = node->next) != NULL) {
+      //printf("2 - %p - %p\n", node, node->next);
       if (point == node->point)
         break;
     }
   }
-  if (node) search_node_ = node;
+  search_node_ = node;
+  printf("\nSN: %p - %p\n", search_node_, search_node_->next);
   return node;
 }
 

poly2tri/sweep/advancing_front.h

@@ -51,20 +51,13 @@ struct Node {
   {
   }
 
-  /*
-     ~Node() {
-     printf("going... ");
-     printf("bye node");
-     printf(" ... gone!\n");
-     }
-   */
 };
 
 // Advancing front
 class AdvancingFront {
 public:
 
-AdvancingFront();
+AdvancingFront(Node& head, Node& tail);
 // Destructor
 ~AdvancingFront();
 
@@ -78,7 +71,7 @@ void set_search(Node* node);
 /// Locate insertion point along advancing front
 Node* Locate(const double& x);
 
-Node* LocatePoint(Point* point);
+Node* LocatePoint(const Point* point);
 
 private:
 

poly2tri/sweep/sweep.cc

@@ -46,14 +46,14 @@ void Sweep::Triangulate(SweepContext& tcx)
 void Sweep::SweepPoints(SweepContext& tcx)
 {
   for (int i = 1; i < tcx.point_count(); i++) {
-    printf("%i = ", i);
     Point& point = *tcx.GetPoint(i);
-    printf("%f,%f\n", point.x, point.y);
+    printf("%i = %f,%f ", i, point.x, point.y);
     Node& node = PointEvent(tcx, point);
-
+    printf("1...");
     for (int i = 0; i < point.edge_list.size(); i++) {
       EdgeEvent(tcx, point.edge_list[i], node);
     }
+   printf("2!\n");
   }
 }
 
@@ -174,7 +174,8 @@ Node& Sweep::NewFrontTriangle(SweepContext& tcx, Point& point, Node& node)
   new_node->prev = &node;
   node.next->prev = new_node;
   node.next = new_node;
-
+  //printf("\n%p - %p - %p | ", new_node->prev, new_node, new_node->next);
+  //printf("%p - %p - %p\n", node.prev, &node, node.next);
   if (!Legalize(tcx, *triangle)) {
     tcx.MapTriangleToNodes(*triangle);
   }
@@ -458,10 +459,10 @@ void Sweep::RotateTrianglePair(Triangle& t, Point& p, Triangle& ot, Point& op)
   //      the right side.
   t.ClearNeighbors();
   ot.ClearNeighbors();
-  if (n1 != NULL) ot.MarkNeighbor(*n1);
-  if (n2 != NULL) t.MarkNeighbor(*n2);
-  if (n3 != NULL) t.MarkNeighbor(*n3);
-  if (n4 != NULL) ot.MarkNeighbor(*n4);
+  if (n1) ot.MarkNeighbor(*n1);
+  if (n2) t.MarkNeighbor(*n2);
+  if (n3) t.MarkNeighbor(*n3);
+  if (n4) ot.MarkNeighbor(*n4);
   t.MarkNeighbor(ot);
 }
 
@@ -595,7 +596,7 @@ void Sweep::FillRightBelowEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
     if (Orient2d(*node.point, *node.next->point, *node.next->next->point) == CCW) {
       // Concave
       FillRightConcaveEdgeEvent(tcx, edge, node);
-    }       else{
+    } else{
       // Convex
       FillRightConvexEdgeEvent(tcx, edge, node);
       // Retry this one

poly2tri/sweep/sweep_context.cc

@@ -55,6 +55,7 @@ void SweepContext::InitTriangulation()
   double dt = glfwGetTime() - init_time;
   printf("Sort time (secs) = %f\n", dt);
 
+  /*
   printf("*************************\n");
   for (int i = 0; i < point_count_; i++) {
     printf("%f,%f ", points_[i]->x, points_[i]->y);
@@ -103,26 +104,24 @@ Node& SweepContext::LocateNode(Point& point)
 
 void SweepContext::CreateAdvancingFront()
 {
+  Node *head, *middle, *tail;
   // Initial triangle
   Triangle* triangle = new Triangle(*points_[0], *tail_, *head_);
 
   map_.push_back(triangle);
 
-  front_ = new AdvancingFront;
+  head = new Node(*triangle->GetPoint(1), *triangle);
+  middle = new Node(*triangle->GetPoint(0), *triangle);
+  tail = new Node(*triangle->GetPoint(2));
 
-  front_->set_head(new Node(*triangle->GetPoint(1)));
-  front_->head()->triangle = triangle;
-  Node* middle = new Node(*triangle->GetPoint(0));
-  middle->triangle = triangle;
-  front_->set_tail(new Node(*triangle->GetPoint(2)));
-  front_->set_search(middle);
+  front_ = new AdvancingFront(*head, *tail); 
   
   // TODO: More intuitive if head is middles next and not previous?
   //       so swap head and tail
-  front_->head()->next = middle;
-  middle->next = front_->tail();
-  middle->prev = front_->head();
-  front_->tail()->prev = middle;
+  head->next = middle;
+  middle->next = tail;
+  middle->prev = head;
+  tail->prev = middle;
 }
 
 void SweepContext::RemoveNode(Node* node)

poly2tri/sweep/sweep_context.h

@@ -50,10 +50,6 @@ SweepContext(Point** polyline, const int& point_count);
 // Destructor
 ~SweepContext();
 
-//void MeshClean(Triangle& triangle);
-// Get Advancing Front
-//AdvancingFront front();
-
 void set_head(Point* p1);
 Point* head();
 
@@ -93,8 +89,7 @@ struct Basin {
   double width;
   bool left_highest;
 
-  Basin() : left_node(NULL), bottom_node(NULL), right_node(NULL),
-    width(0.0), left_highest(false)
+  Basin() : left_node(NULL), bottom_node(NULL), right_node(NULL), width(0.0), left_highest(false)
   {
   }
 
@@ -140,14 +135,6 @@ Point* tail_;
 void InitTriangulation();
 void InitEdges(Point** polyline, const int& point_count);
 
-//void MeshCleanReq(Triangle& triangle )
-
-/*
-   class EdgeEvent {
-    Edge* constrainedEdge;
-    bool right;
-   };
- */
 };
 
 inline AdvancingFront* SweepContext::front()