cee::vis::ScalarMapperContinuous
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class
ScalarMapperContinuous: public ScalarMapperContinuousDomain Maps scalar values to texture coordinates/colors using a continuous/gradient style color map.
A scalar mapper producing a continuous gradient between the specified colors. Colors can be set with one of the ColorTableFactory presets, or specified manually by providing an array of colors The scalar mapper will interpolate between the specified colors to create a continuous gradient.
Public Functions
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ScalarMapperContinuous() Constructs an empty object.
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double
rangeMinimum() const Returns the minimum range value.
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double
rangeMaximum() const Returns the maximum range value.
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void
setRange(double min, double max) Sets the range min and max values.
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void
setColors(const std::vector<Color3f> &colorArray) Sets the scalar mapper level colors from an array of colors.
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void
setColors(ColorTableFactory::ColorTable colorTable) Sets the scalar mapper level colors from a color table.
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void
setColorsAtValues(const std::vector<double> &values, const std::vector<Color3f> &colorAtValues) Sets the colors at the given values and interpolate a continuous color table based on this.
Assumptions:
- values and colorAtValues must have the same length.
- values must be sorted min->max.
- value[i] < value[i + 1]
Note: The range of the mapper will be set to values[0] -> values[values.size() - 1]
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virtual Vec2f
mapToTextureCoordinate(double scalarValue) const Maps scalar value to texture coordinate.
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virtual double
normalizedValue(double domainValue) const Maps domain value (range_min -> range_max) into a normalized value (0 -> 1)
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virtual double
domainValue(double normalizedPosition) const Maps normalized value (0 -> 1) into a domain value (range_min -> range_max)
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virtual unsigned int
version() const Returns the version of the scalar mapper. Version is increased whenever the mapper is changed.
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