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XYZ
===
The XYZ plugin is useful for reading web map tile repositories with a
standard X/Y/LOD setup but that don't explicitly report any metadata.
Many of the popular web mapping services (like MapQuest_) fall into
this category. You need to provide osgEarth with a ``profile`` when
using this driver.
Example usage::
<image name="mapquest_open_aerial" driver="xyz">
<url>http://oatile[1234].mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg</url>
<profile>spherical-mercator</profile>
</image>
Creating the URL template:
The square brackets [] indicate that osgEarth should "cycle through" the characters
within, resulting in round-robin server requests. Some services require this.
The curly braces {} are templates into which osgEarth will insert the proper
``x``, ``y``, and ``z`` values for the tile it's requesting.
Properties:
:url: Location of the tile repository (URL template -- see above)
:profile: Spatial profile of the repository
:invert_y: Set to true to invert the Y axis for tile indexing
:format: If the format is not part of the URL itself, you can specify it here.
Also see:
``mapquest_open_aerial.earth`` and ``openstreetmap.earth`` samples
in the repo ``tests`` folder.
.. _MapQuest: http://developer.mapquest.com/web/products/open/map
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