Panda3D

cLwoSurfaceBlockTMap.cxx

00001 // Filename: cLwoSurfaceBlockTMap.cxx
00002 // Created by:  drose (30Apr01)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "cLwoSurfaceBlockTMap.h"
00016 #include "lwoToEggConverter.h"
00017 
00018 #include "lwoSurfaceBlockTransform.h"
00019 #include "lwoSurfaceBlockRefObj.h"
00020 #include "compose_matrix.h"
00021 #include "dcast.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //     Function: CLwoSurfaceBlockTMap::Constructor
00025 //       Access: Public
00026 //  Description:
00027 ////////////////////////////////////////////////////////////////////
00028 CLwoSurfaceBlockTMap::
00029 CLwoSurfaceBlockTMap(LwoToEggConverter *converter, const LwoSurfaceBlockTMap *tmap) :
00030   _converter(converter),
00031   _tmap(tmap)
00032 {
00033   _center.set(0.0, 0.0, 0.0);
00034   _size.set(1.0, 1.0, 1.0);
00035   _rotation.set(0.0, 0.0, 0.0);
00036   _csys = LwoSurfaceBlockCoordSys::T_object;
00037   _reference_object = "(none)";
00038 
00039   // Scan the chunks in the body.
00040   int num_chunks = _tmap->get_num_chunks();
00041   for (int i = 0; i < num_chunks; i++) {
00042     const IffChunk *chunk = _tmap->get_chunk(i);
00043 
00044     if (chunk->is_of_type(LwoSurfaceBlockTransform::get_class_type())) {
00045       const LwoSurfaceBlockTransform *trans = DCAST(LwoSurfaceBlockTransform, chunk);
00046       if (trans->get_id() == IffId("CNTR")) {
00047         _center = trans->_vec;
00048       } else if (trans->get_id() == IffId("SIZE")) {
00049         _size = trans->_vec;
00050       } else if (trans->get_id() == IffId("ROTA")) {
00051         _rotation = trans->_vec;
00052       }
00053 
00054     } else if (chunk->is_of_type(LwoSurfaceBlockRefObj::get_class_type())) {
00055       const LwoSurfaceBlockRefObj *ref = DCAST(LwoSurfaceBlockRefObj, chunk);
00056       _reference_object = ref->_name;
00057 
00058     } else if (chunk->is_of_type(LwoSurfaceBlockCoordSys::get_class_type())) {
00059       const LwoSurfaceBlockCoordSys *csys = DCAST(LwoSurfaceBlockCoordSys, chunk);
00060       _csys = csys->_type;
00061    }
00062   }
00063 }
00064 
00065 ////////////////////////////////////////////////////////////////////
00066 //     Function: CLwoSurfaceBlockTMap::get_transform
00067 //       Access: Public
00068 //  Description: Fills up the indicated matrix with the net transform
00069 //               indicated by the TMAP chunk, accounting for scale,
00070 //               rotate, and translate.
00071 ////////////////////////////////////////////////////////////////////
00072 void CLwoSurfaceBlockTMap::
00073 get_transform(LMatrix4d &mat) const {
00074   LPoint3d hpr(rad_2_deg(_rotation[0]),
00075                rad_2_deg(-_rotation[1]),
00076                rad_2_deg(-_rotation[2]));
00077   compose_matrix(mat, LCAST(double, _size), hpr,
00078                  LCAST(double, _center), CS_yup_left);
00079 }
 All Classes Functions Variables Enumerations