Added WMS Provider, added support for POST data.

[dzwarg]

Hello migurski,

I added a WMS provider to modestmaps-py. I modeled it closely after the examples I saw for the as3 version, but removed the bounds checking.

In addition to the new provider, I added support for POST-able data. In my use case, I needed to send SLD_BODY content to the WMS map server when generating the images. This was a very small change to the Provider base (I removed some redundant methods), and some simple checks in the Tile load method.

In addition, I changed the default mode of the tile images to be 'RGBA', since sometimes the alpha channel is important, when generating overlays, for example.

Thanks,
dzwarg

[migurski]

Thanks! Do you have a WMS server I can use to test this before I merge?

[dzwarg]

I'm looking into finding one. I'll let you know shortly.

[dzwarg]

Hello migurski,

I added a public WMS server test to my repo: dzwarg/modestmaps-py, in the wms_test.py script.

This test fetches and draws one map with the default styling, then uses an SLD with the inverted rule set to render the second.

Is this what you need to test, or do you need more information?

Thanks,
dzwarg