在Google地图中突出显示整个国家 [英] Highlight whole countries in Google Maps

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本文介绍了在Google地图中突出显示整个国家的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我对Google地图有一个普遍的疑问。我想只为德国使用Google地图,但当然也会显示邻居国家。德国的边界很少见。



有没有可能淡化其他的,没有使用过的国家?

解决方案

我可以使用public World Country Boundaries.kml Fusion Table。



您需要将其添加为 Fusion Table Layer 到您的地图。






首先初始化一张缩小的地图,居中显示,以便我们可以看到大多数国家:

  var map = new google.maps.Map(document.getElementById('map-canvas'),{
center:new google.maps.LatLng(30,0),
zoom:2,
mapTypeId:google.maps.MapTypeId.ROADMAP
});

接下来添加 FusionTablesLayer

  var world_geometry = new google.maps.FusionTablesLayer({
query:{
select:'geometry',
from:'1N2LBk4JHwWpOY4d9fobIn27lfnZ5MDy-NoqqRpk'
},
map:map,
suppressInfoWindows:true
});

看起来像这样:

< img src =https://i.stack.imgur.com/gvTR6.pngalt =所有国家>






关于:


有没有可能淡出其他未使用的国家?


如果您查看 Fusion Table ,你会看到名称和 ISO_2DIGIT 。我们可以通过向 FusionTablesLayer 传递其中条件来过滤这些条件,例如:

 查询:{
select:'geometry',
from:'1N2LBk4JHwWpOY4d9fobIn27lfnZ5MDy-NoqqRpk',
其中:ISO_2DIGIT IN ('US','GB','DE')
},

给:




I have a general question about Google Maps. I want to use Google Maps just for germany, but of course the neighbor countries are shown as well. The border of germany is rarely visible.

Is there a possibility to fade out the other, not used countries?

解决方案

I was able to do this using the public World Country Boundaries.kml Fusion Table.

You'll need to add it as a Fusion Table Layer to your map.


Firstly initialize a map zoomed out right out, centered so we can see most countries:

var map = new google.maps.Map(document.getElementById('map-canvas'), {
  center: new google.maps.LatLng(30,0),
  zoom: 2,
  mapTypeId: google.maps.MapTypeId.ROADMAP
});

Next add the FusionTablesLayer:

var world_geometry = new google.maps.FusionTablesLayer({
  query: {
    select: 'geometry',
    from: '1N2LBk4JHwWpOY4d9fobIn27lfnZ5MDy-NoqqRpk'
  },
  map: map,
  suppressInfoWindows: true
});

That looks like this:


With regard to:

Is there a possibility to fade out the other, not used countries?

If you look at the Fusion Table you'll see there are columns for Name and ISO_2DIGIT. We can filter on these by passing a where condition to the FusionTablesLayer, e.g:

  query: {
    select: 'geometry',
    from: '1N2LBk4JHwWpOY4d9fobIn27lfnZ5MDy-NoqqRpk',
    where: "ISO_2DIGIT IN ('US', 'GB', 'DE')"
  },

To give:

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