Question

我使用Google地图API V3和绘图管理器来添加标记并将其保存到地图中。它可以使用默认的绘图管理器工具。我将drawingMode设置为null，因此在单击标记按钮之前它处于非活动状态 - 这适用于默认设置。

我现在拥有自己的自定义HTML按钮，单击该按钮可激活绘图管理器MARKER工具：

<button id="add-event-button" type="button" class="btn btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Event</button>

我的Javascript是：

document.getElementById('add-event-button').onclick = function()
{
    drawingMode: google.maps.drawing.OverlayType.MARKER;
}

但是当它被点击时它什么都不做，并返回0错误。我换了

drawingMode: google.maps.drawing.OverlayType.MARKER;

与

alert("button was clicked ");

看它是否正在阅读按钮点击并且它有效。那么应该添加什么来激活MARKER工具？

Answer 1

这对我有用（并且不需要jquery）：

document.getElementById('add-event-button').onclick = function() {
  drawingManager.setDrawingMode(google.maps.drawing.OverlayType.MARKER);
}

工作代码段：

function initialize() {
  var mapOptions = {
    center: new google.maps.LatLng(-34.397, 150.644),
    zoom: 8
  };

  var map = new google.maps.Map(document.getElementById('map-canvas'),
    mapOptions);

  var drawingManager = new google.maps.drawing.DrawingManager({
    drawingMode: google.maps.drawing.OverlayType.MARKER,
    drawingControl: true,
    drawingControlOptions: {
      position: google.maps.ControlPosition.TOP_CENTER,
      drawingModes: [
        google.maps.drawing.OverlayType.MARKER,
        google.maps.drawing.OverlayType.CIRCLE,
        google.maps.drawing.OverlayType.POLYGON,
        google.maps.drawing.OverlayType.POLYLINE,
        google.maps.drawing.OverlayType.RECTANGLE
      ]
    },
    markerOptions: {
      icon: 'http://maps.google.com/mapfiles/ms/icons/blue.png'
    },
    circleOptions: {
      fillColor: '#ffff00',
      fillOpacity: 1,
      strokeWeight: 5,
      clickable: false,
      editable: true,
      zIndex: 1
    }
  });
  drawingManager.setMap(map);
  document.getElementById('add-event-button').onclick = function() {
    drawingManager.setDrawingMode(google.maps.drawing.OverlayType.MARKER);
  }
}

google.maps.event.addDomListener(window, 'load', initialize);

html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }

<script src="https://maps.googleapis.com/maps/api/js?libraries=drawing"></script>
<button id="add-event-button" type="button" class="btn btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Event</button>
<div id="map-canvas"></div>

Answer 2

您可能需要通过drawingManager setOptions方法来完成，例如：

drawingManager.setOptions({
  drawingControlOptions: {
    drawingModes: [google.maps.drawing.OverlayType.MARKER]
  }
});

所以在你的情况下：

document.getElementById('add-event-button').onclick = function()
{
        drawingManager.setOptions({
            drawingControlOptions: {
                drawingModes: [google.maps.drawing.OverlayType.MARKER]
            }
        });
}

Answer 3

$("#add-event-button").click( function(){
    drawingManager.setDrawingMode(google.maps.drawing.OverlayType.MARKER);
});

Javascript HTML按钮单击以添加标记到地图

3 个答案: