Add WMS support for WorldWind elevation formats

NASAWorldWind / WorldWindServerKit

The NASA WorldWind Server Kit (WWSK) is an open source Java project that assembles GeoServer for easy distribution and implementation.

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Add WMS support for WorldWind elevation formats #40

Open emxsys opened 7 years ago

emxsys commented 7 years ago

Add support for the bil/dds elevation WMS formats used by the WorldWindJava SDK.

Consider the GeoServer community WorldWind Format Module (module id: gs-dds).

emxsys commented 7 years ago

Work on this issue is transpiring in the _feature/bilsupport branch.

emxsys commented 7 years ago

Added the WorldWind Format Module (gs-dds) community extension to the worldwind_geoserver pom. This extension manifests the BIL Format Settings in the Edit Layer dialog and supports the image/bil and image/dds MIME types in WMS requests.

See the DDS/BIL(World Wind Data Formats) Extension community module documentation.

emxsys commented 7 years ago

Investigate GeoWebCache support for BIL/DDS. See GeoWebCache QuickStart - Other Image Formats

[ ] WorldWind Elevation gridset
[ ] Caching of BIL files
[ ] Caching of DDS files

pdavidc commented 7 years ago

Bruce, I briefly tested the WorldWind Format Module with GeoServer while establishing terrain support for the Android client. Here's a summary of my observations:

BIL support prohibits composing multiple layers, which the Java client depends on.
BIL support appears to use a nearest neighbor filter when magnifying the source data to serve a high resolution request.
BIL support MIME type in HTTP response needs to be validated against Java client expectations.