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

[Stefano Orlando]

Hi Juan Lucas, thank you for your answer. I check for a workaround,
hopefully in the international list this time ...

Bye. Stefano

 

Da: gvsig_desarrolladores-bounces at listserv.gva.es
[mailto:gvsig_desarrolladores-bounces at listserv.gva.es] Per conto di Juan
Lucas Dominguez Rubio
Inviato: mercoledì 18 maggio 2011 17:09
A: Lista de Desarrolladores de gvSIG; gvsig_desarrolladores at listserv.gva.es
Oggetto: Re: [Gvsig_desarrolladores] [gvSIG Mobile 0.3] Bug in
WKFRasterDriver?

 

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
---

Prodevelop SL, Valencia (España)

Tlf.: 96.351.06.12 -- Fax: 96.351.09.68
http://www.prodevelop.es <http://www.prodevelop.es/> 
---

 

  _____  

De: gvsig_desarrolladores-bounces at listserv.gva.es en nombre de Stefano
Orlando
Enviado el: mié 18/05/2011 12:25
Para: gvsig_desarrolladores at 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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