[Gvsig_english] Raster georeferencing

[Juan Lucas Dominguez Rubio]

Hello, Ernesto.
I think there was a problem in the georreference option in gvSIG 1.1.2, but I think in version 1.9 it works fine. Which version are you using?
 
Can you send a screenshot showing exactly three control points and a RMS different from zero?
 
Regards,
 
 
 
Juan Lucas Domínguez Rubio
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Prodevelop SL, Valencia (España)
Tlf.: 96.351.06.12 -- Fax: 96.351.09.68
http://www.prodevelop.es <http://www.prodevelop.es/> 
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________________________________

De: gvsig_internacional-bounces at listserv.gva.es en nombre de ernesto sferlazza
Enviado el: mié 14/10/2009 9:53
Para: gvsig_internacional at listserv.gva.es
Asunto: [Gvsig_english] Raster georeferencing



Hello list and developers
The algorithms at the moment available for raster georeferencing are
"affine" and polinomial (1st, 2nd and 3rd order). The question I
retrieve is: aren't "affine" and "polinomial 1st order" the same
transformation?
Anyway, nothing happens when I select "affine" transformation and try
to start the process.
Moreover: working with a 1st order transformation, if I use only three
Ground Control Points (the minimum theoretic to resolve the
transformation) the RMS should be zero, but it results different
instead. Why?
Best regards
Ernesto Sferlazza

--
ing. Ernesto Sferlazza
responsabile nodo provinciale di Agrigento del SITR Sicilia
resp. gruppo Sistema Informativo Territoriale
Provincia regionale di Agrigento
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sede operativa: via Acrone, 27 - 92100 AGRIGENTO
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tel. uff 0922593752
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