调用geoserver获取栅格图层的属性（例如海拔高度）

function getDemInfo(geomObj,map){
   var point = new ol.geom.Point(ol.proj.fromLonLat([94.085 ,42.118]));
   point = [94.085 ,42.118];
   let offset = 0.00001;
   let minx = point[0] - offset;
   let miny = point[1] - offset;
   let maxx = point[0] + offset;
   let maxy = point[1] + offset;

   let url = "http://192.168.0.164:5081/geoserver/shp/wms"
      + "?SERVICE=WMS"
      + "&VERSION=2.0.0"
      + "&REQUEST=GetFeatureInfo"
      + "&FORMAT=" + encodeURIComponent("image/png")
      + "&TRANSPARENT=true"
      + "&QUERY_LAYERS=" + encodeURIComponent("shp:高程_Level_16")
      + "&LAYERS=" + encodeURIComponent("shp:高程_Level_16")
      + "&exceptions=" + encodeURIComponent("application/vnd.ogc.se_inimage")
      + "&INFO_FORMAT=" + encodeURIComponent("application/json")
      + "&FEATURE_COUNT=50"
      + "&X=50"
      + "&Y=50"
      + "&SRS=EPSG%3A4326"
      + "&STYLES="
      + "&WIDTH=101"
      + "&HEIGHT=101"
      + "&BBOX=" + encodeURIComponent(minx + "," + miny + "," + maxx + "," + maxy);
   console.log(url);

   fetch(url).then(function(response) {
      return response.json();
   }).then(function (json) {
      console.info(json);
      return json;
   });

   $.getJSON(url, function (data) {
      console.log(data);
      console.info("海拔高度:"+data.features[0].properties.GRAY_INDEX);
   });
}

调用geoserver获取栅格图层的属性（例如海拔高度）

原文：https://www.cnblogs.com/zt2710/p/14760843.html