GetPredefinedCoordinateSystemList Method (IGeometryEngine)

In This Topic

Gets the list of predefined coordinate systems for the given filter.

Syntax

Visual Basic (Declaration)
C#

Function GetPredefinedCoordinateSystemList( _
   ByVal filter As CoordinateSystemFilter _
) As IReadOnlyList(Of CoordinateSystemListEntry)

IReadOnlyList<CoordinateSystemListEntry> GetPredefinedCoordinateSystemList( 
   CoordinateSystemFilter filter
)

Parameters

filter: The type of coordinate systems in the list. Geographic, Projected, and Vertical coordinate system categories are supported. Can be used as a bit mask to get multiple types in one list.

Return Value

A read-only list of CoordinateSystemListEntry.

Example

Retrieve coordinate systems

{
  // get all the geographic coordinate systems
  IReadOnlyList<CoordinateSystemListEntry> gcs_list = GeometryEngine.Instance.GetPredefinedCoordinateSystemList(CoordinateSystemFilter.GeographicCoordinateSystem);

  // get the projected coordinate systems
  IReadOnlyList<CoordinateSystemListEntry> proj_list = GeometryEngine.Instance.GetPredefinedCoordinateSystemList(CoordinateSystemFilter.ProjectedCoordinateSystem);

  // get the vertical coordinate systems
  IReadOnlyList<CoordinateSystemListEntry> vert_list = GeometryEngine.Instance.GetPredefinedCoordinateSystemList(CoordinateSystemFilter.VerticalCoordinateSystem);

  // get geographic and projected coordinate systems
  IReadOnlyList<CoordinateSystemListEntry> combined_list = GeometryEngine.Instance.GetPredefinedCoordinateSystemList(CoordinateSystemFilter.GeographicCoordinateSystem | CoordinateSystemFilter.ProjectedCoordinateSystem);

  // investigate one of the entries
  CoordinateSystemListEntry entry = gcs_list[0];
  int wkid = entry.Wkid;
  string category = entry.Category;
  string name = entry.Name;
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.0 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

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