Hi Carson, Interesting. I switched to TM75. Then I imported the lakes and ocean from the shape files and they just snapped in place. I was trying to do it from GRASS. When I tried to set them to the rest of the GIS they vanished until I returned them to their original CRS. That was almost too easy.
Next question. I am putting my vectors into a spatialite database through qspatialite. Will the lakes and oceans behave themselves if I use them in a different project or shift the project to a different computer? Like as not it will still be TM75. BTW, thanks for the info. IRENET95/ Transverse Mercator seemed to be the only logical candidate. Again, Thanks. Kurt On Mar 27, 2012, at 3:39 PM, Carson Farmer wrote: > Hi Kurt, > > Unfortunately, I think you may have misinterpreted what 'on the fly > projection' and 'set layer CRS' are for. Your layer's CRS should be > set to whatever the coordinates are actually measured in, and if your > layers are indeed in lat/long (probably WGS84), then this should stay > that way. If you change the project CRS to Irish National Grid (are > you sure you want IRENET95/Irish Transverse Mercator? When I work with > Irish data I usually use TM75 /Irish Grid [EPSG code: 29903]), then > turn on 'on the fly projection', things should just line up (assuming > you have the layer CRSs defined correctly). If you're concerned about > it, you can also right click on a layer and select save as... to > export to a new projection (but again, this assumes you have the > initial CRS correctly defined. Do the layers that you are using have > .prj files associated with them, if yes, then QGIS *should* > automatically pick up the correct CRS, so no need to 'set layer CRS' > at all. > > HTH, > > Carson > > On Tue, Mar 27, 2012 at 7:14 PM, Kurt Springs <ferret_b...@mac.com> wrote: >> Hi Folks, >> >> I'm in a bit of a pickle. I am preparing some maps for a grant proposal and >> wanted to add some good vector maps for lakes and oceans. The problem is >> these vector maps are in latitude/longitude and I need to convert them to >> Irish National Grid. I tried using v.proj in GRASS but ran into problmes >> (and that is a different list group anyway). After searching the internet I >> discovered CRS. >> >> I made sure properties was set to IRENET95/Irish Transverse Mercator and >> checked Enable 'on the fly' CRS transformation. Then I right clicked the >> vector layer and selected "Set Layer CRS" and set it, again, for >> IRENET95/Irish Transverse Mercator. If I accept what is there already as >> right, all the lakes wound up in South America. It looks like the lat/long >> numbers didn't convert over. Is there a way to manually move them into >> position and make it away that this is it's right and proper position under >> IRENET95/Irish Transverse Mercator? >> >> Thanks for any help. >> >> Kurt D. Springs >> _______________________________________________ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > -- > Dr. Carson J. Q. Farmer > Centre for GeoInformatics (CGI) > School of Geography and Geosciences > Irvine Building, University of St Andrews > St Andrews, Fife, KY16 9AL > Scotland, UK _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user