fix openlayers mvt4326示例。review by songyumeng.

tangqinGiser · tangqinGiser · commit e7a72880bb18 · 2018-03-09T11:27:11.000+08:00
diff --git a/examples/openlayers/mvtVectorLayer4326.html b/examples/openlayers/mvtVectorLayer4326.html
@@ -4,7 +4,11 @@
     <meta charset="UTF-8">
     <title data-i18n="resources.title_mvtVectorLayer4326"></title>
     <script type="text/javascript" src="../js/include-web.js"></script>
-    <script type="text/javascript" src="../../dist/include-openlayers.js"></script>
+    <!--<script type="text/javascript" src="../../dist/include-openlayers.js"></script>-->
+    <script type="text/javascript" src="http://openlayers.org/en/latest/css/ol.css"></script>
+    <!--当前示例使用 ol-debug 原因：ol.format.MVT 默认坐标系为 3857，最新代码未更新该默认设置，需使用ol-debug，设置 defaultDataProjection 参数，以支持4326底图-->
+    <script type="text/javascript" src="http://openlayers.org/en/latest/build/ol-debug.js"></script>
+    <script type="text/javascript" src="../../dist/iclient9-openlayers.js"></script>
 </head>
 <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%">
 <div id="map" style="margin:0 auto;width: 100%;height: 100%;border: 1px solid #dddddd"></div>
@@ -27,6 +31,11 @@
         }
         var vectorTileStyles = new ol.supermap.VectorTileStyles(stylesOptions);
         var vectorTileOptions = ol.source.VectorTileSuperMapRest.optionsFromMapJSON(url, serviceResult.result);
+        vectorTileOptions.format = new ol.format.MVT({featureClass: ol.Feature});
+        vectorTileOptions.format.defaultDataProjection = new ol.proj.Projection({
+            code: 'EPSG:4326',
+            units: ol.proj.Units.TILE_PIXELS
+        });
         var vectorLayer = new ol.layer.VectorTile({
             //设置避让参数
             declutter: true,
