ESRI.ArcGIS.ADF.Web
ToMapPoint(Point,TransformationParams) Method
See Also Example Send Feedback

ESRI.ArcGIS.ADF.Web.Geometry Namespace > Point Class > ToMapPoint Method : ToMapPoint(Point,TransformationParams) Method

Visual Basic (Declaration)

Visual Basic (Usage)

C#

pixelPoint: The screen Point to convert.

transformationParams: Information about the transformation, including map extent, size, projection and rotation, and whether the transformation is to map coordinates or to screen pixels.

Converts a System.Drawing.Point in screen coordinates to a Point in Map coordinates.

Syntax

Visual Basic (Declaration)
Public Overloads Shared Function ToMapPoint( _ ByVal pixelPoint As Point, _ ByVal transformationParams As TransformationParams _ ) As Point

Visual Basic (Usage)	Copy Code
Dim pixelPoint As Point Dim transformationParams As TransformationParams Dim value As Point value = Point.ToMapPoint(pixelPoint, transformationParams)

C#
public static Point ToMapPoint( Point pixelPoint, TransformationParams transformationParams )

Parameters

pixelPoint: The screen Point to convert.
transformationParams: Information about the transformation, including map extent, size, projection and rotation, and whether the transformation is to map coordinates or to screen pixels.

Return Value

Point in Map coordinates.

Example

This example converts a screen point to map point. It obtains the TransformationParams from the Map control, which is assumed to be available as Map1.

C#	Copy Code
System.Drawing.Point screenPoint = new System.Drawing.Point(125, 350); // Get transformation parameters from the Map control ESRI.ArcGIS.ADF.Web.Geometry.TransformationParams transParams = Map1.GetTransformationParams( ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap); ESRI.ArcGIS.ADF.Web.Geometry.Point mapPoint = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint( screenPoint, transParams);

Copy Code

System.Drawing.Point screenPoint =
    new System.Drawing.Point(125, 350);
    
// Get transformation parameters from the Map control
ESRI.ArcGIS.ADF.Web.Geometry.TransformationParams transParams =
    Map1.GetTransformationParams(
    ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap);
    
ESRI.ArcGIS.ADF.Web.Geometry.Point mapPoint =
    ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(
    screenPoint, transParams);

Visual Basic	Copy Code
Dim screenPoint As New System.Drawing.Point(125, 350) ' Get transformation parameters from the Map control Dim transParams As ESRI.ArcGIS.ADF.Web.Geometry.TransformationParams = _ Map1.GetTransformationParams( _ ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap) Dim mapPoint As ESRI.ArcGIS.ADF.Web.Geometry.Point = _ ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint( _ screenPoint, transParams);

Visual Basic

Copy Code

Dim screenPoint As New System.Drawing.Point(125, 350)
    
' Get transformation parameters from the Map control
Dim transParams As ESRI.ArcGIS.ADF.Web.Geometry.TransformationParams = _
    Map1.GetTransformationParams( _
    ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap)
    
Dim mapPoint As ESRI.ArcGIS.ADF.Web.Geometry.Point = _
    ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint( _
    screenPoint, transParams);

Remarks

Use this form of the method instead of ToMapPoint(Point, Envelope, int, int) in order to account for rotation of the Map. The transformationParams may be obtained from the Map with Map.GetTransformationParams.

Requirements

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family