[mapguide-users] Linux and raster support?

[Andy Morsell]

Hi Frank,
I got FDO 3.2 with your GDAL provider to build on Linux and all seems to be
working.  Can you please provide a couple more details on what is expected
for the connection string?  Using Autodesk MapGuide Studio, I was trying
something like /usr/local/raster/test/ where I have a test JPG with JGW.
Test connection reports successful, but when authoring a layer, it only
shows default:default feature class, so something is not working right.

Thanks very much.


Andy 

-----Original Message-----
From: Frank Warmerdam [mailto:warmerdam at pobox.com] 
Sent: Saturday, November 11, 2006 7:13 AM
To: users at mapguide.osgeo.org
Subject: Re: [mapguide-users] Linux and raster support?

> 

> From: Andy Morsell

> 
> I'm realizing that raster is probably still not supported for MGOS 
> under Linux.  Is this a correct statement?  I believe the Autodesk 
> raster provider "preview" is only available for Windows.  What is 
> Autodesk using for raster support under Linux for MapGuide Enterprise?  
> Frank, how is the GDAL raster provider for MGOS coming along?  Is it 
> currently working with FDO 3.2?
> 
> Thank you.
> 
> Andy

Jason Birch wrote:
> 
> I'm pretty sure that Frank's provider compiles when you build FDO 3.2 
> from
scratch with the scripts that come with FDO.  I haven't actually tried it
yet, but it's compiled sucessfully under Windows a few times for me.
> 
> Jason

Andy / Jason,

In fact, the raster provider just complete "phase 1" acceptance testing, and
I consider it ready to use!  The following is a rough status of what is
implemented and not implemented in the provider.  I haven't been talking
about it much because I didn't know if many folks were using FDO 3.2 and the
development version of MapGuide.  It can't be used with the current released
version of MapGuide which depends on FDO 3.1.

I'd be especially happy to help you with it's use for the KG project Andy.


	GDAL FDO Raster Provider
	========================



Implemented
===========

  o Support for reading file(s) based on DefaultRasterFileLocation
    in the connection string.
  o Support for reading files based on a config document (same format
    as for Rfp provider).
  o Supports reading Byte, Int16, UInt16, Int32, UInt32, and Float32
    datatypes.
  o Supports resizing image (SetImageXSize(), SetImageYSize()) (changing
    resolution).
  o Supports reading NullPixel() (with some limitations).
  o Selecting an area (clipping) using SetBounds().
  o Selects Grey, paletted, RGB and RGBA image configurations.
  o Reading in pixel interleaved row-by-row order.
  o Converting data types (Int16 -> Byte).
  o Converting color models (RGBA -> RGB).
  o Reading in tiled format (other than one big tile
    or "strip" tiles).
  o Reading line or band (image) interleaved.
  o Linux builds.
  o Windows builds.


Not Implemented
===============

  o Rotated datasets.
  o Multiple datasets (mosaiced).
  o 1bit (bitonal).
  o Palette support.
  o Proper SRS handling.
  o Generic metadata.
  o Selecting bands other than the default.
  o Single threaded GDAL access.
  o Unit tests (well partially implemented).

-- 
---------------------------------------+--------------------------------
---------------------------------------+------
I set the clouds in motion - turn up   | Frank Warmerdam,
warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org


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