API Reference > imodeljs-common > Symbology > ThematicDisplayProps > range range range: undefined | Range1dProps The range to use when applying the thematic gradient for height and slope mode. For ThematicDisplayMode.Height, this is world space in meters and represents the range in which to apply the gradient along the specified axis. For ThematicDisplayMode.Slope, this is a range in degrees with a minimum low value of 0 degrees and a maximum high value of 90 degrees. Defaults to a null range. Defined in core/common/src/ThematicDisplay.ts Line 392 Last Updated: 12 June, 2024