creating polygons for extrude objects, ngon takes radius parameter

git-svn-id: svn://anubis/fart/trunk@270 7f9b0f55-74a9-4bce-be96-3c2cd072584d

shapes/Extrude.cc

@@ -24,4 +24,11 @@ Shape::IntersectionList Extrude::intersect(refptr<Shape> _this, const Ray & ray)
 
 void Extrude::addPolygon(refptr<Polygon> polygon)
 {
+    m_polygons.push_back(polygon);
+}
+
+void Extrude::addOffset(double distance,
+        const Vector & scale, const Vector & shift)
+{
+    m_offsets.push_back(Offset(distance, scale, shift));
 }

shapes/Extrude.h

@@ -13,9 +13,23 @@ class Extrude : public Shape
         Extrude();
         IntersectionList intersect(refptr<Shape> _this, const Ray & ray);
         void addPolygon(refptr<Polygon> polygon);
+        void addOffset(double distance,
+                const Vector & scale, const Vector & shift);
+        class Offset
+        {
+            public:
+                Offset(double d, const Vector & s, const Vector & p)
+                    : distance(d), scale(s), shift(p)
+                {
+                }
+                double distance;
+                Vector scale;
+                Vector shift;
+        };
 
     protected:
         std::vector< refptr<Polygon> > m_polygons;
+        std::vector<Offset> m_offsets;
 };
 
 #endif