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# volume.h

    00001 //
    00002 // volume.h
    00003 //
    00004 // Copyright (C) 1996 Limit Point Systems, Inc.
    00005 //
    00006 // Author: Curtis Janssen <cljanss@limitpt.com>
    00007 // Maintainer: LPS
    00008 //
    00009 // This file is part of the SC Toolkit.
    00010 //
    00011 // The SC Toolkit is free software; you can redistribute it and/or modify
    00012 // it under the terms of the GNU Library General Public License as published by
    00013 // the Free Software Foundation; either version 2, or (at your option)
    00014 // any later version.
    00015 //
    00016 // The SC Toolkit is distributed in the hope that it will be useful,
    00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00019 // GNU Library General Public License for more details.
    00020 //
    00021 // You should have received a copy of the GNU Library General Public License
    00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
    00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
    00024 //
    00025 // The U.S. Government is granted a limited license as per AL 91-7.
    00026 //
    00027
    00028 #ifndef _math_isosurf_volume_h
    00029 #define _math_isosurf_volume_h
    00030
    00031 #ifdef __GNUC__
    00032 #pragma interface
    00033 #endif
    00034
    00035 #include <math/optimize/function.h>
    00036 #include <math/scmat/matrix.h>
    00037 #include <math/scmat/vector3.h>
    00038
    00039 namespace sc {
    00040
    00042 class Volume: public Function {
    00043   private:
    00044     double _interp_acc;
    00045   protected:
    00046     double& interpolation_accuracy();
    00047
    00048     virtual void compute() = 0;
    00049
    00050     virtual void failure(const char*);
    00051   public:
    00052     Volume();
    00053     Volume(const Ref<KeyVal>&);
    00054     ~Volume();
    00055
    00056     void set_gradient(const SCVector3& g);
    00057     void set_gradient(RefSCVector& g);
    00058     void get_gradient(SCVector3& g);
    00059     void set_x(const SCVector3& x);
    00060     void set_x(const RefSCVector& x);
    00061     void get_x(SCVector3& x);
    00062
    00063     // find the corners of a bounding box which approximately
    00064     // contains all points with a value between valuemin and valuemax
    00065     // the result must satisfy p1[i] < p2[i]
    00066     virtual void boundingbox(double valuemin,
    00067                              double valuemax,
    00068                              SCVector3& p1, SCVector3& p2) = 0;
    00069
    00070     virtual void interpolate(const SCVector3& p1,
    00071                              const SCVector3& p2,
    00072                              double value,
    00073                              SCVector3& result);
    00074     virtual void solve(const SCVector3& p,
    00075                        const SCVector3& grad,
    00076                        double value,
    00077                        SCVector3& result);
    00078 };
    00079
    00080 }
    00081
    00082 #ifdef INLINE_FUNCTIONS
    00083 #include <math/isosurf/volume_i.h>
    00084 #endif
    00085
    00086 #endif
    00087
    00088 // Local Variables:
    00089 // mode: c++
    00090 // c-file-style: "CLJ"
    00091 // End: