geo/tcGeoImageData.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 _tcGeoImageData_h_
  21 #define _tcGeoImageData_h_
  22
  23 /**
  24  * @file tcGeoImageData.h
  25  * @brief Terrain image data.
  26  */
  27
  28 #include "tcGeoData.h"
  29 #include "tcAffineTransform.h"
  30 #include "tcPixelData.h"
  31 #include "CountedReference.h"
  32
  33 #include <QString>
  34 #include <QStringList>
  35
  36 class tcSensor;
  37 class tcChannelManager;
  38 class OGRCoordinateTransformation;
  39
  40 /// Terrain image data.
  41 class tcGeoImageData : public tcGeoData
  42 {
  43   public:
  44
  45     /*
  46      * Constructors + destructor
  47      */
  48
  49     /// Default constructor.
  50     tcGeoImageData();
  51
  52     /// Destructor.
  53     virtual ~tcGeoImageData();
  54
  55     /*
  56      * Accessors
  57      */
  58
  59     /// Get a name for this image data.
  60     const QString& name() const;
  61
  62     /// Get the channel manager.
  63     tcChannelManager* channelManager() const;
  64
  65     /// Get the sun direction.
  66     maths::Vector<3,float> sunDirection(const tcGeo& coord) const;
  67
  68     /*
  69      * Main interface
  70      */
  71
  72     /// Get the affine transformation from texture to geo.
  73     const tcAffineTransform2<double> texToGeo() const;
  74
  75     /// Get the affine transformation from geo to texture.
  76     const tcAffineTransform2<double> geoToTex() const;
  77
  78     /// Get the affine transformation from effective texture to geo.
  79     const tcAffineTransform2<double> effectiveTexToGeo() const;
  80
  81     /// Get the affine transformation from geo to effective texture.
  82     const tcAffineTransform2<double> geoToEffectiveTex() const;
  83
  84     /*
  85      * Rendering
  86      */
  87
  88     /// Set up rendering using thumbnails.
  89     virtual void setupThumbnailRendering(int numChannels, int* channels);
  90
  91     /// Set up rendering using a custom generated high resolution image.
  92     virtual void setupDetailedRendering(int numChannels, int* channels,
  93                                         const tcGeo& swCorner, const tcGeo& neCorner);
  94
  95     /// Set up rendering for normals.
  96     virtual void setupNormalRendering();
  97
  98     /// Provide a geographical texture coordinate.
  99     virtual void texCoord(const tcGeo& coord);
 100
 101     /// Finds the normal at a geographical coordinate during rendering.
 102     virtual maths::Vector<3,float> normalAt(int norm, const tcGeo& coord);
 103
 104     /// Unbind any textures etc.
 105     virtual void finishRendering();
 106
 107   protected:
 108
 109     /*
 110      * Protected mutators
 111      */
 112
 113     /// Set the texture to geo transformation.
 114     void setTexToGeo(const tcAffineTransform2<double>& texToGeo);
 115
 116     /// Set the effective texture to geo transformation.
 117     void setEffectiveTexToGeo(const tcAffineTransform2<double>& effectiveTexToGeo);
 118
 119     /// Set the name.
 120     void setName(const QString& name);
 121
 122     /// Set the sun direction.
 123     void setSunDirection(const tcGeo& sunDirection, const tcGeo& sunReference);
 124
 125   private:
 126
 127     /*
 128      * Variables
 129      */
 130
 131     /// Name of the image data.
 132     QString m_name;
 133
 134     /// Channel manager object.
 135     tcChannelManager* m_channelManager;
 136
 137     /// Transformation from full texture to geo.
 138     tcAffineTransform2<double> m_texToGeo;
 139
 140     /// Transformation from geo to full texture.
 141     tcAffineTransform2<double> m_geoToTex;
 142
 143     /// Transformation from effective texture to geo.
 144     tcAffineTransform2<double> m_effectiveTexToGeo;
 145
 146     /// Transformation from geo to effective texture.
 147     tcAffineTransform2<double> m_geoToEffectiveTex;
 148
 149     /// Sensors which collected the data.
 150     tcSensor* m_sensor;
 151
 152     /// Direction of the sun relative to earth.
 153     maths::Vector<3,double> m_sunDirection;
 154
 155     /// Whether each channel is set up for rendering.
 156     bool m_channelSetup[3];
 157
 158     /// The current normal data.
 159     Reference<tcTypedPixelData<maths::Vector<3,float> > > m_effectiveNormals[3];
 160 };
 161
 162 #endif
 163