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fltTransformScale.h
00001 // Filename: fltTransformScale.h
00002 // Created by:  drose (30Aug00)
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 #ifndef FLTTRANSFORMSCALE_H
00016 #define FLTTRANSFORMSCALE_H
00017 
00018 #include "pandatoolbase.h"
00019 
00020 #include "fltTransformRecord.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : FltTransformScale
00024 // Description : A transformation that applies a (possibly nonuniform)
00025 //               scale.
00026 ////////////////////////////////////////////////////////////////////
00027 class FltTransformScale : public FltTransformRecord {
00028 public:
00029   FltTransformScale(FltHeader *header);
00030 
00031   void set(const LPoint3d &center, const LVecBase3 &scale);
00032 
00033   bool has_center() const;
00034   const LPoint3d &get_center() const;
00035   const LVecBase3 &get_scale() const;
00036 
00037 private:
00038   void recompute_matrix();
00039 
00040   LPoint3d _center;
00041   LVecBase3 _scale;
00042 
00043 protected:
00044   virtual bool extract_record(FltRecordReader &reader);
00045   virtual bool build_record(FltRecordWriter &writer) const;
00046 
00047 public:
00048   virtual TypeHandle get_type() const {
00049     return get_class_type();
00050   }
00051   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00052   static TypeHandle get_class_type() {
00053     return _type_handle;
00054   }
00055   static void init_type() {
00056     FltTransformRecord::init_type();
00057     register_type(_type_handle, "FltTransformScale",
00058                   FltTransformRecord::get_class_type());
00059   }
00060 
00061 private:
00062   static TypeHandle _type_handle;
00063 };
00064 
00065 #endif
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