ComputeCombinedScaleFactor Method

Compute the combined scale factor using two points and using a z elevation at the mid-point between them.

Syntax

C#
Visual Basic (Declaration)

public static Task<double> ComputeCombinedScaleFactor( 
   Map map,
   double x1,
   double y1,
   double x2,
   double y2,
   double z
)

Public Shared Function ComputeCombinedScaleFactor( _
   ByVal map As Map, _
   ByVal x1 As Double, _
   ByVal y1 As Double, _
   ByVal x2 As Double, _
   ByVal y2 As Double, _
   ByVal z As Double _
) As Task(Of Double)

Parameters

map: The map used to calculate the combined scale factor.
x1: The x coordinate of the first point.
y1: The y coordinate of the first point.
x2: The x coordinate of the second point.
y2: The y coordinate of the second point.
z: The z coordinate.

Return Value

A Task returning the calculated combined scale factor.

Exceptions

Exception	Description
System.ArgumentNullException	map is null.

Remarks

This extension method for the ArcGIS.Desktop.Mapping.Map class requires a map in a projected coordinate system, and assumes the x,y coordinates are in the map's ArcGIS.Core.Geometry.SpatialReference.Unit and the z coordinate is in the map's ArcGIS.Core.Geometry.SpatialReference.ZUnit. If the map has no ZUnit then the same unit for x,y is used for the z coordinate.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

GroundToGridCorrection Class
GroundToGridCorrection Members