[Gvsig_english] WMS and WCS raster pixel dimensions

[Rahkonen Jukka]

Hi,

It really looks like WCS client in gvSIG is always adding WIDTH and HEIGHT. That makes is rather useless for downloading coverage data for local use.

I am usually writing WCS requests by hand and using wget for capturing the data from WCS service.  However, I received just yesterday a nice script that makes it possible to use OpenJUMP for drawing the Regions Of Interest.  The script is then automatically generating complete WCS request for each ROI and they can be copy-pasted further.  I can send you the script and some screen captures which show how the workflow goes if you are interested.

-Jukka-

> -----Alkuperäinen viesti-----
> Lähettäjä: gvsig_internacional-bounces at listserv.gva.es 
> [mailto:gvsig_internacional-bounces at listserv.gva.es] Puolesta 
> fla83tn at libero.it
> Lähetetty: 2. joulukuuta 2009 10:40
> Vastaanottaja: gvsig_internacional at listserv.gva.es
> Aihe: Re: [Gvsig_english] WMS and WCS raster pixel dimensions
> 
> I discovered that the error is caused by the WCS extension, 
> which doesn't allow the request  of images with fixed 
> resolution, that is, omitting width and height parameters 
> (this is possible in WCS). Is it really a lack of the WCS extension?
> Note that I'm using gvSIG 1.9 build 1253 from SVN.
> 
> Best regards,
> 
> Flavio
> 
> >Hi to all,
> >I want to use sextante extension of gvSIG in order to
> compute z-
> >dimension of 2-dimensional shapes using a DEM (Digital Elevatoin
> Model) layer.
> >
> >The DEM layer is a raster file, which has the following raster
> attributes if 
> >loaded from file system:
> >
> >X pixel Dimension: 2.5
> >Y pixel
> Dimension: -2.5
> >X
> >rotation: 0.0
> >Y rotation: 0.0
> >
> >If I load the same layer
> via WMS or WCS instead 
> >(which is a GeoTiff image on the UMN Mapserver), the X
> pixel Dimension and Y 
> >pixel Dimension
> >vary with respect to the width/height
> of the image in the 
> >Vista form.
> >This causes problem when calculating the z-
> dimension of my 2-
> >dimensional shapes.
> >
> >How could I fix the X pixel
> Dimension and Y pixel 
> >Dimension of the raster?
> >
> >Any help is appreciated,
> 
> >Flavio
> >_______________________________________________
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> >
> 
> 
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