luciad::DensitySettings Class Reference

DensitySettings are used on a feature layer to enable and configure density painting. More...

#include <luciad/layers/features/DensitySettings.h>

Public Member Functions
	DensitySettings (ColorMap colorMap)
	Constructs density painting settings based on the given color mapping. More...
const ColorMap &	getColorMap () const
	Returns the color mapping used for density painting. More...

Detailed Description

DensitySettings are used on a feature layer to enable and configure density painting.

When density painting is active, the color map in the density settings is used to determine the colors of shapes. The IFeaturePainter determines which shapes are drawn. The density level is based on the amount of overlapping features that are drawn by the IFeaturePainter, with the alpha value serving as a weight. The color is derived from the ColorMap using the density level.

For example, a region with two overlapping features, where one has an alpha of 0.75 and the other an alpha of 0.5, has a density level of 1.25. The color of this region is equal to colorMap.retrieveColor(1.25).

Notes:

• Labels are still rendered normally.
• Complex strokes are ignored.
• Draped and non-draped shapes won't interact with each other. For example: elevated polylines will not be affected by the density level of draped shapes.

Since

2024.1

Constructor & Destructor Documentation

DensitySettings()

luciad::DensitySettings::DensitySettings ( ColorMap  colorMap )

explicit

Constructs density painting settings based on the given color mapping.

Parameters

colorMap

the color mapping to be used for density painting.

Member Function Documentation

getColorMap()

const ColorMap & luciad::DensitySettings::getColorMap

(

)

const

Returns the color mapping used for density painting.

Returns

the color mapping used for density painting.