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78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2012 Ceetron AS
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//
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include "cvfObject.h"
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#include "cvfLegendScalarMapper.h"
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namespace cvf {
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class OverlayColorLegend;
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//==================================================================================================
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//
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// Maps scalar values to texture coordinates/colors
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//
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//==================================================================================================
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class ScalarMapperUniformLevels : public LegendScalarMapper
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{
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public:
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ScalarMapperUniformLevels();
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void setRange(double min, double max);
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double rangeMin() const;
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double rangeMax() const;
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void setColors(const Color3ubArray& colorArray);
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void setColors(ColorTable colorTable, uint levelCount);
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void setTextureSize(uint textureSize);
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uint textureSize() const;
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// Scalarmapper interface
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virtual Vec2f mapToTextureCoord(double scalarValue) const;
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virtual Color3ub mapToColor(double scalarValue) const;
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virtual bool updateTexture(TextureImage* image) const;
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// LegendScalarmapper interface
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virtual void majorLevels(std::vector<double>* domainValues ) const;
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virtual double normalizedLevelPosition( double domainValue ) const;
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virtual double domainValue( double normalizedPosition ) const;
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private:
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void recomputeMaxTexCoord();
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private:
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double m_rangeMin;
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double m_rangeMax;
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Color3ubArray m_colors;
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uint m_textureSize; // The size of texture that updateTexture() is will produce.
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double m_maxTexCoord; // The largest allowable s texture coordinate, scalar values >= m_rangeMax will get mapped to this coordinate
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};
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}
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