9

所以我的 openlayers 实现的背景似乎被压成垂直条纹。奇怪的是，它并不总是这样，但即使我将所有更改都藏回了我知道它正在工作的点，它仍然是坏的。这让我想知道瓷砖资产的交付方式是否发生了变化。我已经尝试在使用 osm 和 wms 层之间切换而没有任何变化，任何帮助将不胜感激。

以下是相关代码： 

initMap: function() {
  var view = this;
  var map = this.map = new OpenLayers.Map();
  map.render(this.$map[0]);

  var wmsLayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
    "http://vmap0.tiles.osgeo.org/wms/vmap0?", {layers: 'basic'});

  var osmLayer = new OpenLayers.Layer.OSM();

  this.layers = {
    point: new OpenLayers.Layer.Vector("Point Layer"),
    line: new OpenLayers.Layer.Vector("Line Layer"),
    polygon: new OpenLayers.Layer.Vector("Polygon Layer")
  };

  this.setValue(this.value);

  map.addLayers([this.layers.point, this.layers.line, this.layers.polygon, osmLayer]);

  drawControls = {
    point: new OpenLayers.Control.DrawFeature(this.layers.point,
      OpenLayers.Handler.Point),
    line: new OpenLayers.Control.DrawFeature(this.layers.line,
      OpenLayers.Handler.Path),
    polygon: new OpenLayers.Control.DrawFeature(this.layers.polygon,
      OpenLayers.Handler.Polygon)
  };

  this.layers[this.layerType].events.on({'sketchcomplete': function(feature) {

    if (!view.multiple) {
      // deactivate polygon layer once a polygon has been added
      drawControls[view.layerType].deactivate();
    }

  }});

  for(var key in drawControls) {
    map.addControl(drawControls[key]);
  }

  if (this.layers[this.layerType].features.length) {
    var bounds = this.layers[this.layerType].getDataExtent();
    var zoom = this.layers[this.layerType].getZoomForExtent(bounds);
    var lon = (bounds.top - bounds.bottom) / 2;
    var lat = (bounds.right - bounds.left) / 2;
    map.setCenter(new OpenLayers.LonLat(lon,lat), 3);
    map.zoomToExtent(bounds);

    if (view.multiple) {
      drawControls[view.layerType].activate();
    }

  } else {
    map.setCenter(new OpenLayers.LonLat(-11174482.03751,4861394.9982606), 4);
    drawControls[view.layerType].activate();
  }

  this.$('.clear').click(function(e) {
    e.preventDefault();
    view.layers[view.layerType].destroyFeatures();
    drawControls[view.layerType].activate();
  });
},

这是输出：

这是输出

4

3 回答 3

19

所以我发现了问题。Twitter bootstrap 在其重置文件中有一行设置：

img { max-width: 100% }

这是挤压图像。您可以通过以下方式修复它：

img { max-width: none; }
于 2012-06-29T22:48:57.520 回答
7 
I was having the same problem, are you using bootstrap of twitter? 

I found out there was a selector for img elements that was affecting the map. I had the next selector into the bootstrap.css"

img {
  max-width: 100%;
  vertical-align: middle;
  border: 0;
  -ms-interpolation-mode: bicubic;
}

I don't know whay the parameter max-width: 100%; makes the vertical stripes in my case. I remove the propertie max-width: 100% and now is working.
于 2012-06-29T23:13:19.160 回答
2

设置img { max-width: 100% }为img { max-width:none; }确实可以解决问题。

但是，这会对整个网站的图像产生意想不到的影响。我还在使用 Bootstrap Twitter 的轮播组件来获取图像，当我进行上述更改时，图像不适合轮播。因此，我对其进行了更改，使其仅针对 OpenLayers / OpenStreetMap div 中的图像。

div#outlet_map img { max-width:none; }
于 2013-05-08T14:08:48.317 回答