ArcGIS AddIn 批量設置柵格圖層背景色為透明

 protected override void OnClick()
        {
            //
            //  TODO: Sample code showing how to access button host
            //
            ArcMap.Application.CurrentTool = null;

            IMap pMap = ArcMap.Document.FocusMap;
            for (int i = 0; i < pMap.LayerCount; i++)
            {
                ILayer pLayer = pMap.get_Layer(i);
                if (pLayer is IRasterLayer)
                {
                    IRasterLayer pRstLyr = pLayer as IRasterLayer;
                    IRasterStretchColorRampRenderer pRasterStretchColorRampRenderer;
                    IRasterStretch2 prstStretch= pRstLyr.Renderer as IRasterStretch2;
                    // Setup the stretch
                    prstStretch.Background = true;
                    // Apply the renderer
                    pRstLyr.Renderer = (IRasterRenderer)prstStretch;
                    // Collapse the legends on each raster
                    ILegendInfo legendInfo = (ILegendInfo)pRstLyr.Renderer;
                    ILegendGroup legendGroup = (ILegendGroup)legendInfo.get_LegendGroup(0);
                    legendGroup.Visible = false;
                }
            }
        }

核心實現代碼如上

上述代碼實現了對TOC中所有柵格圖層批量設置其背景色為透明,可以避免在工作中加載大量分幅圖時,部分分幅圖背景顯示為黑色導致的黑邊問題.

相當於批量將TOC中所有柵格圖層勾選了 Display background Value as 選項.

 

上述代碼只是簡單實現了功能,沒有考慮圖層組的情況,如果圖層放入圖層組中,會檢索不到,從而不對圖層組中的圖層做任何處理

編譯插件文件下載地址: 鏈接: https://pan.baidu.com/s/1GUBJRe_dLV7657ozgTqVhw 密碼: djq2