GP 裁剪

        private IFeatureClass GPClipTool(IFeatureLayer inFeatureLayer,IFeatureLayer clipFeatureLayer)
        {
            Geoprocessor gp = new Geoprocessor();
            Clip clipTool = new Clip();
            clipTool.in_features = inFeatureLayer;
            clipTool.clip_features = clipFeatureLayer;
            IGeoProcessorResult gpResult = (IGeoProcessorResult)gp.Execute(clipTool, null);
            IGPUtilities gpUtil = new GPUtilitiesClass();
            IFeatureClass pFC;
            IQueryFilter pQF;
            gpUtil.DecodeFeatureLayer(gpResult.GetOutput(0), out pFC, out pQF);
            return pFC;

        }

注意：有时候由于FeatureLayer没名称或者名称太长，会致使执行失败。