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      <title>1980-2025：45年前的深圳卫星图</title>
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      <pubDate>Wed, 16 Apr 2025 18:00:00 +0000</pubDate>
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      <description>深圳可能是最难给卫星图做georeferencing的城市之一，因为深圳几乎所有的楼房都是在最近40年建设的...</description>
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      <title>自建OpenStreetmap地图瓦片服务：迁移mbtiles到pmtiles</title>
      <link>https://blog.sparktour.me/posts/2025/01/15/self-host-protomaps-tiles-server/</link>
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      <description>笔者注意到了一些GIS开源项目在使用的Protomaps项目，以及他们提出的pmtiles格式。如Protomaps的发起人给博客起的标题《Dynamic Maps, Static Storage》那样，pmtiles的一大优势是如果不需要raster tiles，服务端不再需要安装任何软件，只需要一个“Static Storage”即可，无需任何后端软件对地图数据进行处理。</description>
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      <title>自建OpenStreetmap地图瓦片服务</title>
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      <pubDate>Tue, 03 Aug 2021 18:00:00 +0000</pubDate>
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      <description>&lt;h1 id=&#34;自建openstreetsmap地图瓦片服务&#34;&gt;自建OpenStreetsmap地图瓦片服务&lt;/h1&gt;
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    &lt;figcaption&gt;地图显示效果&lt;/figcaption&gt;
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&lt;p&gt;迫于openstreetsmap官方的瓦片服务器（tile server）速度太慢，而提供矢量瓦片（vector tile）服务的mapbox和maptiler的免费额度太少，更新慢。笔者最近尝试基于tileserver-gl，openmaptiles和tilemaker等工具自建了一个openstreetsmap的地图瓦片服务器。&lt;/p&gt;</description>
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