Arcgis RasterCalculator

要命

private void SetGPEnvironment()
        {
            object obj = null;
            if (m_GP == null) return;

            m_GP.ClearMessages();
            m_GP.OverwriteOutput = base.OverwriteOutput;

            obj = m_GP.GetEnvironmentValue("OutputZFlag");
            m_GP.SetEnvironmentValue("OutputZFlag", base.ZFlag.ToString());

            obj = m_GP.GetEnvironmentValue("OutputMFlag");
            m_GP.SetEnvironmentValue("OutputMFlag", base.MFlag.ToString());
        }
        private void SetGPEnvironment(RasterLayer layer)
        {
            SetGPEnvironment();

            m_GP.SetEnvironmentValue("Extent", layer.FilePath);
        }

public void RasterSubtract(RasterLayer baseMapLayer, RasterLayer toCutLayer, double radio)
        {
            try
            {
                SetGPEnvironment(baseMapLayer);
     
                RasterCalculator RC = new RasterCalculator();
                RC.expression = "\"" + baseMapLayer.FilePath + "\" - Con(IsNull(\"" + toCutLayer.FilePath + "\"),0,1)*0.3";
                RC.output_raster = @"C:\Users\PC25\Documents\ArcGIS\Default.gdb\rastercalc46";

                m_GP.Execute(RC, null);
                object sev = null;
                string str = m_GP.GetMessage(0);
                MessageBox.Show(str);
            }
            catch (Exception ex)
            {
                object sev = null;
                string str2=m_GP.GetMessages(ref sev);
                MessageBox.Show(str2);
            }
        }
        #endregion

转载自：https://blog.csdn.net/htsitr2/article/details/82986370