关于创建 WMS 服务和桌面客户端的一些建议？
我正在学习使用 MapServer 创建 WMS 服务，之后我想开发一个可以访问它的 PyQt 桌面应用程序。我不知道最好的方法是什么，因为我见过很多网络解决方案，但这不是我想要的。我也不知道是否有图书馆可以帮助我。你能给我一些建议吗？
提前致谢！
I'm learning to create a WMS service using MapServer and after that I want to develop a PyQt desktop application which will access it. I don't know what is the best way to do that because I have seen a lot of web solutions but it's not what I'm looking for. Neither I know if there are libraries that can help me. Can you give me some advices?
Thanks in advance!
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我假设您在 MapServer 上设置 WMS 服务没有任何问题。使用 GIS 桌面客户端或简单的 OpenLayers 网页进行测试。
为了开发 WMS 客户端，我将在 GDAL 库之上构建。这也包含在 MapServer 中。
http://crschmidt.net/blog/archives /285/having-a-large-image-from-openaerialmap/
作为额外的奖励，GDAL 包含 Python 绑定，这将有助于编写脚本。
http://pypi.python.org/pypi/GDAL/
您还需要 < strong>libcurl 访问 URL。 libcurl 也有 Python 绑定 - http://curl.haxx.se/libcurl/python/
libcurl 也包含在 MapServer 中，它本身既可以是 WMS 服务器，也可以是客户端。您还可以查看 C++ 源代码以了解 MapServer 客户端的工作原理 - https://trac.osgeo.org/mapserver/browser/branches/branch-5-6/mapserver/mapwmslayer.c
WMS 服务返回一个图像（除了一些额外的元数据）服务），因此定制开发将基于根据用户操作构建正确的 WMS 请求。
如果您想获得快速的性能，请查看TileCache，它将在服务器上缓存 WMS 结果以便更快地使用（也在本地缓存）。
I'm assuming you have no trouble setting up a WMS service on MapServer. Test this is working with a GIS desktop client, or a simple OpenLayers web page.
To develop a WMS client I'd build on top of the GDAL library. This is also included in MapServer.
http://crschmidt.net/blog/archives/285/producing-a-large-image-from-openaerialmap/
As an added bonus GDAL includes Python bindings which will help with scripting.
http://pypi.python.org/pypi/GDAL/
You will also need libcurl to access URLs. libcurl too has Python bindings - http://curl.haxx.se/libcurl/python/
libcurl is also included in MapServer, which itself can be both a WMS server and client. You can also check out the C++ source code for how the MapServer client works - https://trac.osgeo.org/mapserver/browser/branches/branch-5-6/mapserver/mapwmslayer.c
A WMS service returns an image (apart from a few extra meta services), so the custom development will be based around building the correct WMS requests based on user actions.
If you want to have fast performance then have a look at TileCache which will cache the WMS results on the server for quicker use (and also cache locally).