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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ScalarMapperContinuous()