[Geotools-devel] [jira] Created: (GEOT-545) Make GeoTIFF use Hints

[Bryce N. (JIRA) <ji...@co...>]

Make GeoTIFF use Hints
----------------------

         Key: GEOT-545
         URL: http://jira.codehaus.org/browse/GEOT-545
     Project: GeoTools
        Type: Improvement
  Components: geotiff  
    Reporter: Bryce Nordgren
 Assigned to: Bryce Nordgren 


I do not know how to use hints such that the User can specify which EPSG authority factories the GeoTiff plugin should use.  The current code searches for an EPSG factory with "null" as a hint.  The main conceptual problem for me is that GeoTiffFormatSpi(s) create GeoTiffFormat(s), which create GeoTiffReader(s), which create GeoTiffCoordinateSystemAdapter(s), which needs to use the user-specified authority factory.  I see no way for the user to specify this, as it is not passed to the top-level object.

The conversations I heard about "hints" thus far are for plugins to specify what they need, not for app writers to communicate to plugins.  This is the opposite of what I'm trying to do.  Perhaps this is not even the correct mechanism.

To resolve this issue, the intrepid programmer must conjure some mechanism for users to direct the GeoTIFF plugin to use a set of Authority Factories of their choosing.

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