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How to perform mensuration on an image service (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > Developing with ArcGIS > Learning ArcObjects > Managing data > Working with image and raster data > Working with image services and WCS services > How to perform mensuration on an image service

How to perform mensuration on an image service

This topic demonstrates how to perform mensuration on an image service (new at ArcGIS 10.1).

Performing mensuration on an image service

The following code example demonstrates how to measure the height of a building using locations of building bottom and top:
public static void Measure(IImageServer4 imageServer)
    //Define building bottom.
    IPoint fromPoint=new PointClass();
    fromPoint.X= - 117.29944857;

    //Define building top.
    IPoint toPoint=new PointClass();
    toPoint.X= - 117.29940048;

    //Measure height.
    IImageServerMeasureResult result=imageServer.Measure(fromPoint, toPoint, null,
        null, esriMensurationOperation.esriMensurationHeightFromBaseAndTop);
    Console.WriteLine("{0} +/- {1} {2}", (Double)result.Measurement.GetProperty(
        "Height"), (Double)result.Measurement.GetProperty("HeightUncertainty"), 
Public Shared Sub Measure(ByVal imageServer As IImageServer4)
'Define building bottom.
Dim fromPoint As IPoint=New PointClass()

'Define building top.
Dim toPoint As IPoint=New PointClass()

'Measure height.
Dim result As IImageServerMeasureResult=imageServer.Measure(fromPoint, toPoint, Nothing, Nothing, esriMensurationOperation.esriMensurationHeightFromBaseAndTop)
Console.WriteLine("{0} +/- {1} {2}", DirectCast(result.Measurement.GetProperty("Height"), Double), DirectCast(result.Measurement.GetProperty("HeightUncertainty"), Double), DirectCast(result.Measurement.GetProperty("LinearUnit"), String))
End Sub

See Also:

How to make measurements from images

To use the code in this topic, reference the following assemblies in your Visual Studio project. In the code files, you will need using (C#) or Imports (VB .NET) directives for the corresponding namespaces (given in parenthesis below if different from the assembly name):
Development licensing Deployment licensing
ArcGIS Desktop Advanced ArcGIS Desktop Advanced
ArcGIS Desktop Standard ArcGIS Desktop Standard
ArcGIS Desktop Basic ArcGIS Desktop Basic
Engine Developer Kit Engine