[Gvsig_desarrolladores] [gvSIG Mobile 0.3] Bug in WKFRasterDriver?

[Juan Lucas Dominguez Rubio]

Hello, Stefano, thanks for reporting this bug.
 
I think the problem is that in the method getAllLayersExtent in the class MapContext, we are modifying the extent of the layer while computing the union of the layer extents
 
There is a an international list for developers:
 
https://lists.forge.osor.eu/listinfo/gvsig-desktop-devel
 
 
Regards,
Juan Lucas Domínguez Rubio
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De: gvsig_desarrolladores-bounces en listserv.gva.es en nombre de Stefano Orlando
Enviado el: mié 18/05/2011 12:25
Para: gvsig_desarrolladores en listserv.gva.es
Asunto: [Gvsig_desarrolladores] [gvSIG Mobile 0.3] Bug in WKFRasterDriver?



Hi, I'm experimenting this behavior with raster layers with external .wld
file ('WKFRasterDriver', I assume). See attached file for some data.

- Startup a new project with EPSG: 32633
- Load 'big_extent.shp'
- Load 'north.gif'
- Do some "zoom in", "zoom out", "zoom extent"; all is ok
- Go in 'Layer Properties' and invert the display order of the layers (now
'big_extent.shp' is above 'north.gif')
- Do 'zoom extent' and the raster layer is wrongly transformed to the
maximum extent

Another:
- Startup a new project with EPSG: 32633
- Load 'south.gif'
- Load 'north.gif'
- Do some "zoom in", "zoom out", "zoom rectangle"; all is ok
- Do 'zoom extent' and the raster 'south.gif' is wrongly positioned below
'north.gif'

Perhaps a bug in the driver assuming an incorrect affine transformation (it
seems that the parameters of the affine transformation are not changed but
maintained between one layer to another)?

Thank you in advance for your help!

Stefano


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