window.PDelevationTool = null; //坡度分析
window.DXTerrainFlattening = null; //地形压平
window.TSExcavation = null; //通视分析

function ClearAlayse() {
  if (window.PDelevationTool != null) {
    window.PDelevationTool.type = "none";
    window.PDelevationTool.render();
    window.PDelevationTool = null;
  }

  if (window.DXTerrainFlattening != null) {
    DXTerrainFlattening.remove();
    DXTerrainFlattening = null;
  }
  if (window.TSExcavation != null) {
    window.TSExcavation.deleteObject();
    window.TSExcavation = null;
  }
}