DEMTool.h

   1 /***********************************************************************
   2 DEMTool - Tool class to load a digital elevation model into an augmented
   3 reality sandbox to colorize the sand surface based on distance to the
   4 DEM.
   5 Copyright (c) 2013-2016 Oliver Kreylos
   6
   7 This file is part of the Augmented Reality Sandbox (SARndbox).
   8
   9 The Augmented Reality Sandbox is free software; you can redistribute it
  10 and/or modify it under the terms of the GNU General Public License as
  11 published by the Free Software Foundation; either version 2 of the
  12 License, or (at your option) any later version.
  13
  14 The Augmented Reality Sandbox is distributed in the hope that it will be
  15 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17 General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License along
  20 with the Augmented Reality Sandbox; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22 ***********************************************************************/
  23
  24 #ifndef DEMTOOL_INCLUDED
  25 #define DEMTOOL_INCLUDED
  26
  27 #include <string>
  28 #include <GL/gl.h>
  29 #include <GL/GLObject.h>
  30 #include <GLMotif/FileSelectionHelper.h>
  31 #include <Vrui/Tool.h>
  32 #include <Vrui/Application.h>
  33
  34 #include "Types.h"
  35 #include "DEM.h"
  36
  37 /* Forward declarations: */
  38 class Sandbox;
  39 class DEMTool;
  40
  41 class DEMToolFactory: public Vrui::ToolFactory {
  42     friend class DEMTool;
  43
  44     /* Elements: */
  45   private:
  46     GLMotif::FileSelectionHelper demSelectionHelper; // Helper object to load DEMs from files
  47
  48     /* Constructors and destructors: */
  49   public:
  50     DEMToolFactory(Vrui::ToolManager& toolManager);
  51     virtual ~DEMToolFactory(void);
  52
  53     /* Methods from Vrui::ToolFactory: */
  54     virtual const char* getName(void) const;
  55     virtual const char* getButtonFunction(int buttonSlotIndex) const;
  56     virtual Vrui::Tool* createTool(const Vrui::ToolInputAssignment& inputAssignment) const;
  57     virtual void destroyTool(Vrui::Tool* tool) const;
  58 };
  59
  60 class DEMTool: public DEM, public Vrui::Tool, public Vrui::Application::Tool<Sandbox> {
  61     friend class DEMToolFactory;
  62
  63     /* Elements: */
  64   private:
  65     static DEMToolFactory* factory; // Pointer to the factory object for this class
  66     std::string demFileName; // Name of DEM file to load
  67     bool haveDemTransform; // Flag if the tool's configuration file section specified a DEM transformation
  68     OGTransform demTransform; // The transformation to apply to the DEM
  69     Scalar demVerticalShift; // Extra vertical shift to apply to DEM in sandbox coordinate units
  70     Scalar demVerticalScale; // The vertical exaggeration to apply to the DEM
  71
  72     /* Private methods: */
  73     void loadDEMFile(const char* demFileName); // Loads a DEM from a file
  74     void loadDEMFileCallback(GLMotif::FileSelectionDialog::OKCallbackData*
  75                              cbData); // Called when the user selects a DEM file to load
  76
  77     /* Constructors and destructors: */
  78   public:
  79     static DEMToolFactory* initClass(Vrui::ToolManager& toolManager);
  80     DEMTool(const Vrui::ToolFactory* factory, const Vrui::ToolInputAssignment& inputAssignment);
  81     virtual ~DEMTool(void);
  82
  83     /* Methods from class Vrui::Tool: */
  84     virtual void configure(const Misc::ConfigurationFileSection& configFileSection);
  85     virtual void initialize(void);
  86     virtual const Vrui::ToolFactory* getFactory(void) const;
  87     virtual void buttonCallback(int buttonSlotIndex, Vrui::InputDevice::ButtonCallbackData* cbData);
  88 };
  89
  90 #endif