Re: [Geotools-devel] how to create a gridcoverage datastore?

[Jody G. <jga...@re...>]

andrea antonello wrote:
> Hi, I am searching something with a similar title as the object, but even if I browsed the geotools site up and down, I couldn't find one.
>   
That is because I have not been able to sit down the interested parties 
and hammer out an "high level" API yet. They have a low level api in the 
form of a Format / Reader / Writer combo that is based on a dead OGC 
specification about "Grid Coverage Exchange". Here are user doc pages 
with examples:
- http://docs.codehaus.org/display/GEOTDOC/08+Coverage
- http://docs.codehaus.org/display/GEOTDOC/01+Format
- http://docs.codehaus.org/display/GEOTDOC/GeoTIFF+Plugin

The difficulty here is the example for "Format" above; the read 
parameters are not quite enough information to make a pretty dynamic API 
allowing a user to set the connection parameters. Here is the proposal 
our best guess on what needs to be built (ie base our work off the WCS 
specification which at the very least is not dead).
- 
http://docs.codehaus.org/display/GEOTOOLS/GridAccess+based+on+WCS+Specification


> Is there a piece of guide explaining some of the steps to create a datastore?
> I have right now ported most of the GRASS binary raster read/write
> code to imageio and would like to make a datastore out of that.
>   
See above; you will be making an AbstractGridCoverageReader or some such...
> Any hint here? Any help very appreciated,
I will be on IRC; and if you want we can troll through the test case 
examples looking up a few more examples.
Jody