1 files changed, 54 insertions, 0 deletions
diff --git a/src/CSGTermEvaluator.h b/src/CSGTermEvaluator.h
new file mode 100644
index 0000000..beb1201
--- /dev/null
+++ b/src/CSGTermEvaluator.h
@@ -0,0 +1,54 @@
+#ifndef CSGTERMEVALUATOR_H_
+#define CSGTERMEVALUATOR_H_
+
+#include <string>
+#include <map>
+#include <list>
+#include <vector>
+#include "Tree.h"
+#include "visitor.h"
+#include "node.h"
+
+using std::string;
+using std::map;
+using std::list;
+using std::vector;
+
+class CSGTermEvaluator : public Visitor
+{
+public:
+	CSGTermEvaluator(const Tree &tree, class PolySetEvaluator *psevaluator = NULL)
+		: tree(tree), psevaluator(psevaluator) {
+	}
+  virtual ~CSGTermEvaluator() {}
+
+  virtual Response visit(State &state, const AbstractNode &node);
+ 	virtual Response visit(State &state, const AbstractIntersectionNode &node);
+ 	virtual Response visit(State &state, const AbstractPolyNode &node);
+ 	virtual Response visit(State &state, const CsgNode &node);
+ 	virtual Response visit(State &state, const TransformNode &node);
+ 	virtual Response visit(State &state, const RenderNode &node);
+
+	class CSGTerm *evaluateCSGTerm(const AbstractNode &node,
+																 vector<CSGTerm*> &highlights, 
+																 vector<CSGTerm*> &background);
+
+private:
+	enum CsgOp {UNION, INTERSECTION, DIFFERENCE, MINKOWSKI};
+  void addToParent(const State &state, const AbstractNode &node);
+	void applyToChildren(const AbstractNode &node, CSGTermEvaluator::CsgOp op);
+
+  const AbstractNode *root;
+  typedef list<const AbstractNode *> ChildList;
+  map<int, ChildList> visitedchildren;
+
+public:
+  map<int, class CSGTerm*> stored_term; // The term evaluated from each node index
+
+	vector<CSGTerm*> highlights;
+	vector<CSGTerm*> background;
+	const Tree &tree;
+	class PolySetEvaluator *psevaluator;
+};
+
+#endif