geo/tcNormals.h

   1 /***************************************************************************
   2  *   This file is part of Tecorrec.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   Tecorrec is free software: you can redistribute it and/or modify      *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation, either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   Tecorrec is distributed in the hope that it will be useful,           *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with Tecorrec.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 #ifndef _tcNormals_h_
  21 #define _tcNormals_h_
  22
  23 /**
  24  * @file tcNormals.h
  25  * @brief Normal map from elevation data.
  26  */
  27
  28 #include "tcChannelDem.h"
  29 #include "tcAffineTransform.h"
  30
  31 /// Normal map from elevation data.
  32 class tcNormals : public tcChannelDem
  33 {
  34   public:
  35
  36     /*
  37      * Constructors + destructor
  38      */
  39
  40     /// Primary constructor.
  41     tcNormals(const tcGeoImageData* refImagery, tcChannel* reference, tcSrtmModel* dem, tcGeoImageData* imagery);
  42
  43     /// Destructor.
  44     virtual ~tcNormals();
  45
  46   protected:
  47
  48     /*
  49      * Interface for derived class to implement
  50      */
  51
  52     // Reimplemented
  53     virtual void roundPortion(double* x1, double* y1, double* x2, double* y2);
  54
  55     // Reimplemented
  56     virtual tcAbstractPixelData* loadPortion(double x1, double y1, double x2, double y2, bool changed);
  57
  58   private:
  59
  60     /*
  61      * Variables
  62      */
  63
  64     /// We'll use the same resolution as this reference channel.
  65     tcChannel* m_referenceChannel;
  66
  67     /// Transform to reference coordinates.
  68     tcAffineTransform2<double> m_refTransform;
  69 };
  70
  71 #endif