ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.Geometry Namespace / IGeometryEngine Interface / GetPredefinedCoordinateSystemList Method
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.
Example

In This Topic
    GetPredefinedCoordinateSystemList Method (IGeometryEngine)
    In This Topic
    Gets the list of predefined coordinate systems for the given filter.
    Syntax

    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, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also