【fix】fix ol 高性能图层webgl渲染时不显示结果的问题 review by songym

Author: zhurc

dist/openlayers/iclient9-openlayers-es6.js

@@ -74015,8 +74015,23 @@ class WebGLRenderer_GraphicWebGLRenderer extends external_ol_default.a.Object {
         return external_ol_default.a.proj.transform(coordinates, projection, 'EPSG:4326');
     }
     _pixelToMeter(pixel) {
-        const meterRes = this.map.getView().getResolution();
-        return pixel * meterRes;
+        let view = this.map.getView();
+        let projection = view.getProjection();
+
+        let unit = projection.getUnits() || 'degrees';
+        if (unit === 'degrees') {
+            unit = Unit.DEGREE;
+        }
+        if (unit === 'm') {
+            unit = Unit.METER;
+        }
+        const res = view.getResolution();
+        if (unit === Unit.DEGREE) {
+            let meterRes= res*(Math.PI * 6378137 / 180);
+            return pixel * meterRes;
+        }else{
+            return pixel * res;
+        }
     }
 
 }

dist/openlayers/iclient9-openlayers-es6.min.js

@@ -30806,8 +30806,23 @@ var GraphicWebGLRenderer = exports.GraphicWebGLRenderer = function (_ol$Object)
     }, {
         key: "_pixelToMeter",
         value: function _pixelToMeter(pixel) {
-            var meterRes = this.map.getView().getResolution();
-            return pixel * meterRes;
+            var view = this.map.getView();
+            var projection = view.getProjection();
+
+            var unit = projection.getUnits() || 'degrees';
+            if (unit === 'degrees') {
+                unit = _iclientCommon.Unit.DEGREE;
+            }
+            if (unit === 'm') {
+                unit = _iclientCommon.Unit.METER;
+            }
+            var res = view.getResolution();
+            if (unit === _iclientCommon.Unit.DEGREE) {
+                var meterRes = res * (Math.PI * 6378137 / 180);
+                return pixel * meterRes;
+            } else {
+                return pixel * res;
+            }
         }
     }]);