<HTML dir=ltr><HEAD><TITLE>[Gvsig_english] Raster georeferencing</TITLE>
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<DIV dir=ltr><FONT face="Times New Roman" color=#000000 size=3>Hello, Ernesto.</FONT></DIV>
<DIV dir=ltr>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?</DIV>
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<DIV dir=ltr>Can you send a screenshot showing exactly three control points and a RMS different from zero?</DIV>
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<DIV dir=ltr>Regards,</DIV>
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<DIV><FONT face="Courier New" size=2><FONT face="Times New Roman" size=3>Juan Lucas Domínguez Rubio<BR></FONT>---</FONT></DIV>
<DIV><FONT face="Courier New" size=2><FONT face="Courier New" size=2><FONT face="Courier New" size=2>Prodevelop SL, Valencia (España)</FONT></DIV>
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<DIV><FONT face="Courier New" size=2>Tlf.: 96.351.06.12 -- Fax: 96.351.09.68<BR></FONT><A href="http://www.prodevelop.es/"><FONT face="Courier New" size=2>http://www.prodevelop.es</FONT></A><BR><FONT face="Courier New" size=2>---</FONT></DIV></FONT></DIV></FONT></DIV>
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<FONT face=Tahoma size=2><B>De:</B> gvsig_internacional-bounces@listserv.gva.es en nombre de ernesto sferlazza<BR><B>Enviado el:</B> mié 14/10/2009 9:53<BR><B>Para:</B> gvsig_internacional@listserv.gva.es<BR><B>Asunto:</B> [Gvsig_english] Raster georeferencing<BR></FONT><BR></DIV>
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<P><FONT size=2>Hello list and developers<BR>The algorithms at the moment available for raster georeferencing are<BR>"affine" and polinomial (1st, 2nd and 3rd order). The question I<BR>retrieve is: aren't "affine" and "polinomial 1st order" the same<BR>transformation?<BR>Anyway, nothing happens when I select "affine" transformation and try<BR>to start the process.<BR>Moreover: working with a 1st order transformation, if I use only three<BR>Ground Control Points (the minimum theoretic to resolve the<BR>transformation) the RMS should be zero, but it results different<BR>instead. Why?<BR>Best regards<BR>Ernesto Sferlazza<BR><BR>--<BR>ing. Ernesto Sferlazza<BR>responsabile nodo provinciale di Agrigento del SITR Sicilia<BR>resp. gruppo Sistema Informativo Territoriale<BR>Provincia regionale di Agrigento<BR>sede istituzionale: piazza Aldo Moro, 1 - 92100 AGRIGENTO<BR>sede operativa: via Acrone, 27 - 92100 AGRIGENTO<BR>cell. 3392718463 (personale)<BR> 3316874296 (aziendale)<BR>tel. uff 0922593752<BR>_______________________________________________<BR>Gvsig_internacional mailing list<BR>Gvsig_internacional@listserv.gva.es<BR><A href="http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional">http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional</A><BR></FONT></P></DIV></BODY></HTML>