PageToMap(Coordinate2D) Method

In This Topic

Translates a point in page coordinates to a point in map coordinates. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public Coordinate2D PageToMap( 
   Coordinate2D pageCoord
)

Public Overloads Function PageToMap( _
   ByVal pageCoord As Coordinate2D _
) As Coordinate2D

Parameters

pageCoord: The point in page coordinates

Return Value

A point in map coordinates

Exceptions

Exception	Description
System.InvalidOperationException	Mapframe must contain a 2D map
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Remarks

The map coordinates will be in the spatial reference of the map associated with the map frame. Page coordinates can only be translated for 2D maps. If the map frame does not contain a 2D map, an System.InvalidOperationException is thrown. If either page coordinate value is double.NaN then a point with X, Y both set to System.Double.NaN is returned.

Example

Translates a point in page coordinates to a point in map coordinates.

//On the QueuedTask
var layout = Project.Current.GetItems<LayoutProjectItem>().FirstOrDefault().GetLayout();
var mapFrame = layout.FindElement("New Map Frame") as MapFrame;

//Get a point in the center of the Map frame
var mapFrameCenterPoint = mapFrame.GetBounds().CenterCoordinate;
//Convert to MapPoint
//At 2.x - var pointInMapFrame = MapPointBuilder.CreateMapPoint(mapFrameCenterPoint);
var pointInMapFrame = MapPointBuilderEx.CreateMapPoint(mapFrameCenterPoint);

//Find the corresponding point in the MapView
var pointOnMap = mapFrame.PageToMap(pointInMapFrame);

//Create a point graphic on the MapView.
var cimGraphicElement = new CIMPointGraphic
{
  Location = pointOnMap,
  Symbol = pointSymbol.MakeSymbolReference()
};
graphicsLayer.AddElement(cimGraphicElement);

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

MapFrame Class
MapFrame Members
Overload List

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