ArcGIS API for WPF - Library Reference
OpacityRange Property
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ESRI.ArcGIS.Client Namespace > RampInterpolator Class : OpacityRange Property

Gets or sets the range of opacity (i.e. visibility) applied to a Symbol being rendered via the RampInterpolator for a set of temporal features in a FeatureLayer as defined by the Map.TimeExtent.

Syntax

Visual Basic (Declaration) 
Public Property OpacityRange As OpacityRange
C# 
public OpacityRange OpacityRange {get; set;}

Remarks

The double that is used in the OpacityRange.From and OpacityRange.To Properties of the Opacity range in value from 0 to 1. 0 means invisible and 1 means completely visible. The newest temporal observation specified by the Map.TimeExtent matches the From opacity value. The oldest temporal observation specified by the Map.TimeExtent matches the To opacity value.

The following image provides a visual example of how a square Symbol (with the default color being red) would look via the RampInterpolator for the OpacityRange Property that is graduated over five time periods as defined by the Map.TimeExtent.

OpacityRange example for visibility going from 1 to .2.

Code examples for using the OpacityRange can be found in the RampInterpolator and TemporalRenderer Classes.

Requirements

Target Platforms: Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

See Also

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