FIX: NFF face winding bug (actually it was in StandardShapes.cpp).

FIX: StandardShapes::MakeCone() - face order was incorrect in 50% of all cases.
Implemented StandardShapes::MakeCircle().
Fixed a compiler warning in B3DImporter.cpp.
Modified cone.nff - one texture isn't found, that's ok. The mapping should be better visible now.


git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@299 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/StandardShapes.h

@@ -153,9 +153,9 @@ public:
 	 *
 	 *       |-----|       <- radius 1
 	 *
-	 *        __x__        <- ]
-	 *       /     \          | height
-	 *      /       \         | 
+	 *        __x__        <- ]               ^
+	 *       /     \          | height        |
+	 *      /       \         |               Y                 
 	 *     /         \        |
 	 *    /	          \       |
 	 *   /______x______\   <- ] <- end cap
@@ -180,16 +180,14 @@ public:
 	// ----------------------------------------------------------------
 	/** @brief Generates a flat circle
 	 *
-	 *  @param center Center point of the circle
+	 *  The circle is constructed in the planed formed by the x,z
+	 *  axes of the cartesian coordinate system.
+	 *  
 	 *  @param radius Radius of the circle
-	 *  @param normal Normal vector of the circle.
-	 *    This is also the normal vector of all triangles generated by
-	 *    this function.
 	 *  @param tess Number of segments.
 	 *  @param positions Receives output triangles.
 	 */
-	static void MakeCircle(const aiVector3D& center, const aiVector3D& normal, 
-		float radius, unsigned int tess,
+	static void MakeCircle(float radius, unsigned int tess,
 		std::vector<aiVector3D>& positions);
 	
 };