added urdf fixed joint

VirtualRobot/Import/URDF/SimoxURDFFactory.cpp

@@ -368,6 +368,10 @@ namespace VirtualRobot
                 result = prismaticNodeFactory->createRobotNode(robo, name, rnVisu, rnCol, limitLo, limitHi, 0, preJointTransform, axis, idVec3, physics);
                 break;
 
+           case urdf::Joint::FIXED:
+                result = prismaticNodeFactory->createRobotNode(robo, name, rnVisu, rnCol, limitLo, limitHi, 0, preJointTransform, axis, idVec3, physics);
+                break;
+
             default:
                 result = fixedNodeFactory->createRobotNode(robo, name, rnVisu, rnCol, 0, 0, 0, preJointTransform, idVec3, idVec3, physics);
                 std::cout << std::endl << "RobotNode [" << name << "] has a not implemented joint type: " << urdfJoint->type << std::endl << std::endl;