Further work on the IRR, AC, LWS loaders. Further work on the - still unfinished - OptimizeGraph step. SceneCombiner works now properly in all cases I tested yet.

Added missing 'typename' in Colladaparser.h
First implementation of spherical and cylindrical mapping, already in use for IRR and LWO models. For the latter the coordinate system is not yet correct.
Moved vec2d to a separate header and added operators similar to vec3.
Added plane and ray helper classes. Just the data is wrapped, no operators required for the moment.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@249 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/LWSLoader.h

@@ -44,6 +44,24 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 namespace Assimp	{
+	namespace LWS	{
+
+// ---------------------------------------------------------------------------
+/** Represents an element in a LWS file.
+ *
+ *  This can either be a single data line - <name> <value> or it can
+ *  be a data group - { name <data_line0> ... n }
+ */
+class Element
+{
+	std::string name, data;
+	std::list<Element> children;
+
+	void Parse (const char* buffer);
+};
+
+
+} // end namespace LWS
 
 // ---------------------------------------------------------------------------
 /** LWS (LightWave Scene Format) importer class.
@@ -76,10 +94,7 @@ protected:
 	/** Called by Importer::GetExtensionList() for each loaded importer.
 	 * See BaseImporter::GetExtensionList() for details
 	 */
-	void GetExtensionList(std::string& append)
-	{
-		append.append("*.lws");
-	}
+	void GetExtensionList(std::string& append);
 
 	// -------------------------------------------------------------------
 	/** Imports the given file into the given scene structure.