对于角度谷歌地图,我希望我可以将存储的多边形标记数组绘制到地图上。
我使用的技术是:使用JavaScript的Angular版本1,使用angular指令和templateUrl。
这是我的html指令模板:
<ui-gmap-google-map center="config.map.center" zoom="config.map.zoom" options="config.map.options" events="config.map.events" draggable="true">
<ui-gmap-polygon path="compatiblePolygon" stroke="polygonConfig.stroke" fill="polygonConfig.fill" fit="true" static="true" visible="polygonConfig.visible" editable="polygonConfig.editable" draggable="polygonConfig.draggable" clickable="true" events="polygonConfig.events">
</ui-gmap-polygon>
<ui-gmap-markers models="compatiblePoints" coords="'self'" idKey="'id'"
options="pointsConfig.options"
clickable="true">
</ui-gmap-markers>
<ui-gmap-drawing-manager options="config.drawing.options" static="true" control="drawingManagerControl" events="config.drawing.events"></ui-gmap-drawing-manager>
</ui-gmap-google-map>
答案 0 :(得分:2)
You need to store your polygon as an encoded string in database, instead of polygon coordinates. you can obtain encoded polygon as follows:
/* This function save latitude and longitude to the polygons[] variable after we call it. */
function encodePolygon(polygon)
{
//This variable gets all bounds of polygon.
var path = polygon.getPath();
var encodeString =
google.maps.geometry.encoding.encodePath(path);
/* store encodeString in database */
}
Then you can redraw your polygon from encode string any time using:
function DrawPolygon(encodedString){
var decodedPolygon =
google.maps.geometry.encoding.decodePath(encodedString);
var polygon = new google.maps.Polygon({
paths: decodedPolygon,
editable: false,
strokeColor: '#FFFF',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FFFF',
fillOpacity: 0.35
});
}