NDOLoader: improve reusability of some temporary vectors.

ColladaLoader: fix http://sourceforge.net/tracker/?func=detail&aid=3054873&group_id=226462&atid=1067632, thanks to Adario for the report.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@814 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/ColladaLoader.cpp

@@ -229,13 +229,18 @@ void ColladaLoader::ResolveNodeInstances( const ColladaParser& pParser, const Co
 		 end = pNode->mNodeInstances.end(); it != end; ++it)
 	{
 		// find the corresponding node in the library
-		ColladaParser::NodeLibrary::const_iterator fnd = pParser.mNodeLibrary.find((*it).mNode);
-		if (fnd == pParser.mNodeLibrary.end()) 
+
+		// FIX for http://sourceforge.net/tracker/?func=detail&aid=3054873&group_id=226462&atid=1067632
+		// need to check for both name and ID to catch all. The const_cast is legal
+		// because we won't attempt to modify the instanced node although it is kept
+		// non-const.
+		Collada::Node* nd = const_cast<Collada::Node*>(FindNode(pParser.mRootNode,(*it).mNode));
+		if (!nd) 
 			DefaultLogger::get()->error("Collada: Unable to resolve reference to instanced node " + (*it).mNode);
 		
 		else {
 			//	attach this node to the list of children
-			resolved.push_back((*fnd).second);
+			resolved.push_back(nd);
 		}
 	}
 }

code/NDOLoader.cpp

@@ -220,6 +220,9 @@ void NDOImporter::InternReadFile( const std::string& pFile,
 	aiNode** cc = root->mChildren = new aiNode* [ root->mNumChildren = static_cast<unsigned int>( objects.size()) ] ();
 	pScene->mMeshes = new aiMesh* [ root->mNumChildren] ();
 
+	std::vector<aiVector3D> vertices;
+	std::vector<unsigned int> indices;
+
 	for_each(const Object& obj,objects) {
 		aiNode* nd = *cc++ = new aiNode(obj.name);
 		nd->mParent = root;
@@ -240,9 +243,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
 		aiMesh* mesh = new aiMesh();
 		aiFace* faces = mesh->mFaces = new aiFace[mesh->mNumFaces=face_table.size()];
 
-		std::vector<aiVector3D> vertices;
-		std::vector<unsigned int> indices;
-
+		vertices.clear();
 		vertices.reserve(4 * face_table.size()); // arbitrarily choosen 
 		for_each(FaceTable::value_type& v, face_table) {
 			indices.clear();