GroovX: src/visx/jitter.h Source File

00001 
00003 
00004 //
00005 // Copyright (c) 1999-2004 California Institute of Technology
00006 // Copyright (c) 2004-2007 University of Southern California
00007 // Rob Peters <rjpeters at usc dot edu>
00008 //
00009 // created: Wed Apr  7 13:46:40 1999
00010 // commit: $Id: jitter.h 10065 2007-04-12 05:54:56Z rjpeters $
00011 // $HeadURL: file:///lab/rjpeters/svnrepo/code/trunk/groovx/src/visx/jitter.h $
00012 //
00013 // --------------------------------------------------------------------
00014 //
00015 // This file is part of GroovX.
00016 //   [http://ilab.usc.edu/rjpeters/groovx/]
00017 //
00018 // GroovX is free software; you can redistribute it and/or modify it
00019 // under the terms of the GNU General Public License as published by
00020 // the Free Software Foundation; either version 2 of the License, or
00021 // (at your option) any later version.
00022 //
00023 // GroovX is distributed in the hope that it will be useful, but
00024 // WITHOUT ANY WARRANTY; without even the implied warranty of
00025 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00026 // General Public License for more details.
00027 //
00028 // You should have received a copy of the GNU General Public License
00029 // along with GroovX; if not, write to the Free Software Foundation,
00030 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
00031 //
00033 
00034 #ifndef GROOVX_VISX_JITTER_H_UTC20050626084016_DEFINED
00035 #define GROOVX_VISX_JITTER_H_UTC20050626084016_DEFINED
00036 
00037 #include "gfx/gxtransform.h"
00038 
00040 class Jitter : public GxTransform
00041 {
00043   // creators //
00045 
00047   Jitter();
00048 
00049 public:
00051   static Jitter* make();
00052 
00054   virtual ~Jitter() throw();
00055 
00056   virtual io::version_id class_version_id() const;
00057   virtual void read_from(io::reader& reader);
00058   virtual void write_to(io::writer& writer) const;
00059 
00061   // manipulators //
00063 
00064   void setXJitter(double xj) { itsXJitter = xj; }
00065   void setYJitter(double yj) { itsYJitter = yj; }
00066   void setRJitter(double rj) { itsRJitter = rj; }
00067 
00068   void setJitter(double xj, double yj, double rj)
00069   {
00070     itsXJitter = xj;
00071     itsYJitter = yj;
00072     itsRJitter = rj;
00073   }
00074 
00075 
00077   // actions //
00079 
00080 public:
00081   virtual void draw(Gfx::Canvas&) const;
00082 
00083 private:
00084   void rejitter() const;
00085 
00086   // These specify the amount of jitter that will be effected by the
00087   // translate() or rotate() calls; the actual value used will be in
00088   // the range of the specified value +/- jitter value.
00089   double itsXJitter;
00090   double itsYJitter;
00091   double itsRJitter;
00092 
00093   mutable double itsXShift;
00094   mutable double itsYShift;
00095   mutable double itsRShift;
00096 };
00097 
00098 static const char __attribute__((used)) vcid_groovx_visx_jitter_h_utc20050626084016[] = "$Id: jitter.h 10065 2007-04-12 05:54:56Z rjpeters $ $HeadURL: file:
00099 #endif // !GROOVX_VISX_JITTER_H_UTC20050626084016_DEFINED