Engine如何设置图层列表数据框的坐标系

RT,Engine如何设置图层列表数据框的坐标系,IMap.SpatialReference好像不对应,请教是哪一个接口下的属性?
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刘峥 - ArcGIS多面手

赞同来自: GIS知乎 Nico

数据框的坐标系通过IMap::SpatialReference设定,如:
            
Type t = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
System.Object obj = Activator.CreateInstance(t);
ISpatialReferenceFactory srFact = obj as ISpatialReferenceFactory;
IProjectedCoordinateSystem projectedCS = srFact.CreateProjectedCoordinateSystem(
(int)esriSRProjCSType.esriSRProjCS_NAD1983UTM_11N);

IMap map = my_MapControl.ActiveView.FocusMap as IMap;
map.SpatialReference = projectedCS as ISpatialReference;

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