Upgraded visualization libraries

Major refactoring of color legend framework Added discrete log color legend p4#: 18989
2026-08-09 12:48:21 -05:00 · 2012-10-02 10:17:52 +02:00
parent 082560b2a5
commit 9c1ce7591e
163 changed files with 8917 additions and 3214 deletions
@@ -0,0 +1,68 @@
+//##################################################################################################
+//
+//   Custom Visualization Core library
+//   Copyright (C) 2011-2012 Ceetron AS
+//    
+//   This library is free software: you can redistribute it and/or modify 
+//   it under the terms of the GNU General Public License as published by 
+//   the Free Software Foundation, either version 3 of the License, or 
+//   (at your option) any later version. 
+//    
+//   This library is distributed in the hope that it will be useful, but WITHOUT ANY 
+//   WARRANTY; without even the implied warranty of MERCHANTABILITY or 
+//   FITNESS FOR A PARTICULAR PURPOSE.   
+//    
+//   See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
+//   for more details. 
+//
+//##################################################################################################
+
+#pragma once
+
+#include "cvfScalarMapper.h"
+
+namespace cvf {
+
+//==================================================================================================
+//
+// A base class that implements the common things between ordinary range based legends.
+//
+//==================================================================================================
+class ScalarMapperRangeBased : public ScalarMapper
+{
+public:
+    ScalarMapperRangeBased();
+
+    // Public interface for setting up the mapping
+    void                setRange(double min, double max);
+    void                setLevelCount(size_t colorCount, bool adjustLevels);
+    void                setLevelsFromValues(const std::set<double>& levelValues);
+
+    void                setColors(const Color3ubArray& colorArray);
+    void                setColors(ColorTable colorTable);
+
+    // Implementing some of the Scalarmapper interface
+    virtual Vec2f       mapToTextureCoord(double scalarValue) const;
+    virtual Color3ub    mapToColor(double scalarValue) const;
+    virtual bool        updateTexture(TextureImage* image) const;
+    virtual void        majorTickValues(std::vector<double>* domainValues ) const;
+    
+protected:
+    double              m_rangeMin;
+    double              m_rangeMax;
+    unsigned int        m_decadeLevelCount;
+    std::set<double>    m_sortedLevels; 
+
+private:
+    void                updateSortedLevels();
+
+private:
+    size_t              m_levelCount;       //< Number of discrete colors between min and max or number of sections between major ticks
+    bool                m_adjustLevels;     //< Toggles wether to round tick positions to nice numbers
+    std::set<double>    m_userDefinedLevelValues;
+
+    Color3ubArray       m_colors;
+    uint                m_textureSize;      // The size of texture that updateTexture() will produce. 
+};
+
+}