修正geoserver地图初始化图片格式，确保显示配置的背景色

zhaoxing

2021-11-25 d448a6034f2ec9b708d9a739e36c1fe734ff37fd

 mobile/road_show.html

@@ -270,7 +270,7 @@
<body>
    <!--道路展示 开始-->
    <div class="map-panel-item">
        <div id="toolbar" style="display: none; height: 0;">
        <div id="toolbar" style="display: none; height: 0; overflow: hidden;">
            <ul>
                <li>
                    <a>WMS version:</a>
@@ -403,8 +403,8 @@
        </select>

        <div id="map">
            <!-- <div class="ol-toggle-options ol-unselectable"><a title="Toggle options toolbar"
                    onClick="toggleControlPanel()" href="#toggle">...</a></div> -->
            <div class="ol-toggle-options ol-unselectable" style="display: none; height: 0; overflow: hidden;"><a title="Toggle options toolbar"
                    onClick="toggleControlPanel()" href="#toggle">...</a></div>
        </div>
        <div id="wrapper" class="hidden">
            <div id="location"></div>
@@ -446,7 +446,7 @@
                        ratio: 1,
                        url: default_system_params.geoserver_url_predix + 'geoserver/konglu_58/wms',
                        params: {
                            'FORMAT': 'image/jpeg',
                            'FORMAT': 'image/png',
                            'VERSION': '1.1.1',
                            "STYLES": 'polyline_road_pm25',
                            "LAYERS": 'konglu_58:vis_roadsection_' + getFormParams().querytype_,
@@ -461,7 +461,7 @@
                    source: new ol.source.TileWMS({
                        url: default_system_params.geoserver_url_predix + 'geoserver/konglu_58/wms',
                        params: {
                            'FORMAT': 'image/jpeg',
                            'FORMAT': 'image/png',
                            'VERSION': '1.1.1',
                            tiled: true,
                            "STYLES": 'polyline_road_pm25',