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62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
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#pragma once
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#include "cvfBase.h"
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#include "cvfObject.h"
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#include "cvfScalarMapper.h"
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#include "cvfString.h"
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namespace caf
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{
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//==================================================================================================
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//
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//
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//==================================================================================================
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class CategoryMapper : public cvf::ScalarMapper
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{
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public:
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CategoryMapper();
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void setCategories( const std::vector<int>& categoryValues );
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void setCategoriesWithNames( const std::vector<int>& categoryValues, const std::vector<cvf::String>& categoryNames );
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void setCategoriesValueNameColor( const std::vector<int>& categoryValues,
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const std::vector<cvf::String>& categoryNames,
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const cvf::Color3ubArray& colorArray );
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// Colors in color array are cycled, if category count is larger than color count, colors are reused
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void setCycleColors( const cvf::Color3ubArray& colorArray );
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// Colors are interpolated to make sure all categories get a unique color
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void setInterpolateColors( const cvf::Color3ubArray& colorArray );
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// Overrides used from legend
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cvf::Vec2f mapToTextureCoord( double scalarValue ) const override;
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bool updateTexture( cvf::TextureImage* image ) const override;
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cvf::Color3ub mapToColor( double normalizedValue ) const override;
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void majorTickValues( std::vector<double>* domainValues ) const override;
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double normalizedValue( double domainValue ) const override;
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double domainValue( double normalizedValue ) const override;
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size_t categoryCount() const;
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const cvf::String textForCategoryIndex( size_t index ) const;
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int categoryIndexForCategory( double domainValue ) const;
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private:
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void recomputeMaxTexCoord();
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private:
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cvf::Color3ubArray m_colors;
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cvf::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
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// this coordinate
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std::vector<int> m_categoryValues;
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std::vector<cvf::String> m_categoryNames;
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};
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} // namespace caf
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