在ArcGIS Eninge获取图层的空间参考系;
可直接获取SpatialReference的有IGeometry、IGeoDataset、IMap、IMapControl。
IFeature,那么可以 通过 IFeature.Shape.SpatialReference 或 (IFeature.Class as IGeoDataset).SpatialReference 获取空间参考系;
IFeatureLayer,那么可以通过( IFeatureLayer.FeatureClass as IGeoDataset).SpatialReference 获取空间参考系;
IFeatureClass,那么可以通过(IFeatureClass as IGeoDataset).SpatialReference 获取空间参考系;
IMap,那么可以通过IMap.SpatialReference获取空间参考系;
IMapControl,可以通过IMapControl.SpatialReference获取空间参考系;
接口 | 实例 |
---|---|
IFeature | IFeature.Shape.SpatialReference 或 (IFeature.Class as IGeoDataset).SpatialReference |
IFeatureLayer | ( IFeatureLayer.FeatureClass as IGeoDataset).SpatialReference |
IFeatureClass | (IFeatureClass as IGeoDataset).SpatialReference |
IMap | IMap.SpatialReference |
IMapControl | IMapControl.SpatialReference |