Wolfgang, I stated the on-line manual did not have the information about the "Add geometry info".
I eventually found it here (in spanish) under "add geographic information to the layer" (Agregar información geográfica a la capa)... <http://translate.google.com.au/translate?hl=en&sl=es&u=http://www.gvsig.org/web/docusr/new-functionalities-gvsig-1-9&ei=BTYLS-C8LdKDkAXYrv2rAw&sa=X&oi=translate&ct=result&resnum=4&ved=0CBUQ7gEwAw&prev=/search%3Fq%3Dhttp://www.gvsig.org/web/docusr/new-functionalities-gvsig-1-9%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-GB:official%26hs%3DDek%26num%3D100> Cheers Simon Simon Cropper Botanicus Australia Pty Ltd PO Box 160, Sunshine, Victoria 3020. P: 9311 5822. M: 041 830 3437. mailto: [email protected] <mailto:[email protected]> web: www.botanicusaustralia.com.au <http://www.botanicusaustralia.com.au> Wolfgang Qual wrote: > Hi Simon, > well, I browsed a little bit and found an answer: > you can export your polygon layer to an annotation layer (export to... > annotation). Then edit this annotation layer (add x- and y-coordinates > using the field calculator). > > best, > wolfgang > Am Mittwoch, den 25.11.2009, 00:20 +1100 schrieb Simon Cropper > (Botanicus Australia Pty Ltd): > >> Hi, >> >> I have found some answers. >> >> First X, Y can be extracted with the field calculator using the >> functions x() and y(). >> >> Sextante can be used to extract the centre point of a polygon. >> >> This aside is there any way of consolidating these tasks? Can you >> calculate the centre point of a polygon in gvSIG? >> >> Cheers Simon >> >> Simon Cropper >> Botanicus Australia Pty Ltd >> PO Box 160, Sunshine, Victoria 3020. >> P: 9311 5822. M: 041 830 3437. >> mailto: [email protected] >> <mailto:[email protected]> >> web: www.botanicusaustralia.com.au <http://www.botanicusaustralia.com.au> >> >> >> >> Simon Cropper (Botanicus Australia Pty Ltd) wrote: >> >>> Hi Everyone, >>> >>> Can someone tell me if gvSIG can be used to establish the centre point >>> of a polygon? >>> >>> ... and subsequently place the X and Y coordinates in fields in the >>> attribute table of the polygon shapefile? >>> >>> ... or alternatively create a point file representing the centrepoint >>> and be able to assign the XY values to that shapefile. >>> >>> What I regularly do in alternative programs (OpenJUMP, Kosmo, Sextante) >>> is create a point file showing the centrepoint of a set of polygons >>> (usually representing the sites I have surveyed) and then using ArcView >>> assign the XY coordinate of the points to the northing+easting fields. >>> Reproject into Lat-Long and repeat. These coordinates are used to report >>> the sites locations to government agencies. >>> >>> How would you do this in gvSIG? >>> >>> Can you use Jpython to do this? >>> >>> >> _______________________________________________ >> Gvsig_internacional mailing list >> [email protected] >> http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional >> > > > _______________________________________________ > Gvsig_internacional mailing list > [email protected] > http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional > > > _______________________________________________ Gvsig_internacional mailing list [email protected] http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional
