class ScalarMapperFilledContours : public ScalarMapperContinuousDomain

Maps scalar values to texture coordinates/colors using a filled contours style with user defined contour/color-change values.

You setup the mapper by providing an array of contour/level values, and an array of the color of the level using the setColorsAtValues() method. The first value in the values array will be the minimum value of the mapper, and the last value in the array will be the maximum value. The number of colors specified must be one less than the number of values.

Note that there is no way to set the min/max value of this mapper.

Public Functions


Constructs an empty object.

double rangeMinimum() const

Returns the minimum range value.

double rangeMaximum() const

Returns the maximum range value.

void setColorsAtValues(const std::vector<Color3f> &colorArray, std::vector<double> values)

Sets the scalar mapper level colors from an array of colors.

virtual Vec2f mapToTextureCoordinate(double scalarValue) const

Maps scalar value to texture coordinate.

virtual Color3f mapToColor(double scalarValue) const

Maps scalar value to color.

virtual bool updateTexture(Image *image) const

Updates texture image.

virtual double normalizedValue(double domainValue) const

Maps domain value (range_min -> range_max) into a normalized value (0 -> 1)

virtual double domainValue(double normalizedPosition) const

Maps normalized value (0 -> 1) into a domain value (range_min -> range_max)

virtual unsigned int version() const

Returns the version number of the mapper. Version is increased whenever the mapper is modified.

virtual std::vector<double> tickValuesHint() const

Returns a suggestion for which tick marks to use. The base class returns an empty array.