ArcGIS API for Silverlight - Library Reference
From Property
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ESRI.ArcGIS.Client Namespace > OpacityRange Class : From Property

Gets of sets the amount of opacity (i.e visibility) that corresponds to the symbology of the newest temporal observation specified by the Map.TimeExtent.

Syntax

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

Remarks

The double that is used in the From Property 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 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.

Visual example of a OpacityRange going from 1.0 to 0.2.

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, Windows 7

See Also

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