I had a look at them when I was trying to work out why some imported text wasn't correctly reporting its CRS. They look like pretty strange to me, but since I could open the project on a linux and win7 in different computers with identical results I was happy at that.
It's unlikely I'll get near MI or Arc for quite some time, but I'll be curious what you see. -ramon. On 23/03/2011, at 23:38 , Brett Adams wrote: > Ramon, > I loaded the gsb files as you suggested. The grids now load into the correct > position (correct enough for me anyway). Thats a great achievement right > there. > > The exported projection files (prj) look a bit odd. The segment > DATUM["D_unknown" makes me a little nervous, however as I don't really know > what I'm looking at, its hard to judge. I'll need to see if they are > recognised by Mapinfo or Arc. > > > Brett. > > > > On 23/03/2011 12:58 PM, custard wrote: >> Brett, >> >> If you grab this zip file: >> http://members.westnet.com.au/ramon_et_al/BrettTest.zip >> >> In this zip file is your csv, a bundle of derived shape files, a 1.7 QGIS >> project (which will probably make 1.6 crash - but the shape files are good) >> and a folder with a few images. >> >> The images are from the project, with projection set to MGA94 zone 51, but I >> have switched between GDA94, ADG66/84, WGS84 and the equivilent zone 51s, >> with OTF on. >> >> The images show the points with OTF on and off, and zoomed in. >> >> Are these close enough for your purposes? >> >> The folder I gave for standalone should be right, but this method (for >> reasons I don't understand) doesn't seem to work on 1.6 standalone under >> WinXP. (I'm hoping it's a 1.6 thing, and not an osgeos/standalone thing) >> >> -ramon. >> >> ----- Original Message ----- >> From: "Brett Adams" <[email protected]> >> To: [email protected], "Ramon Andinach" <[email protected]> >> Sent: Wednesday, 23 March, 2011 8:20:43 AM GMT +08:00 Beijing / Chongqing / >> Hong Kong / Urumqi >> Subject: Re: [Qgis-user] Projection of Shapefile export >> >> Ramon, >> Attached CSV contains grid coordinates in 4 different projections; AGD66, >> AGD84, GDA94 and WGS84. All zone 51 and 51S >> >> The conversions were calculated using Mapinfo. Conversions can vary up to >> 1-2m depending on the parameters used so don't be too surprised if you can't >> replicate these exactly. >> >> These are the same points attached to Bug Ticket 3099. >> >> Brett >> >> >> >> On 22/03/2011 6:37 PM, Ramon Andinach wrote: >> On 21/03/2011, at 19:51 , Ramon Andinach wrote: >> >> >> On 21/03/2011, at 10:21 , Brett Adams wrote: >> >> >> I thought this problem merely related to the failure of Australian >> projections. Projection data doesn't exist, therefore can't be exported with >> the shape file. >> >> If the points are imported as WGS84 / UTMz51S, then export the shape file, >> the projection file contains the relevant information. Its all good. >> >> So if the projection issue is fixed, shape files will then export with the >> required projection information. >> >> >> As far as I can see, there is no bug here. If anyone can show otherwise, we >> need to record the bug and create a ticket (if it doesn't exist already) >> >> The little bit of information I had before, I just tacked on to the end of >> your existing ticket. >> >> I was going to put a bit of my spare time during this week into trying to >> replicate Roland's solution firstly on my home linux machine and then see if >> I could make that approach work on windows at work. >> >> >From my recollection last time I was trying Ken's solution and a few others >> >like just defining a CRS and couldn't quite get there. >> >> Let you know what eventuates. >> >> Short version: >> I'm fairly sure that QGIS 1.7 is approximately 2 (fairly large) files away >> from being able to handle AGD points. >> >> The files are here: >> >> http://www.icsm.gov.au/icsm/gda/gdatm/national66.zip >> >> and here: >> >> http://www.icsm.gov.au/icsm/gda/gdatm/national84.zip >> >> >> and these equate to the missing datum shift files. >> >> In 1.7 as at this afternoon, you need to download them, unzip them rename >> them to agd66.gsb or agd84.gsb and copy them to: >> /usr/share/proj - for linux users >> C:/OSGeo4W/share/proj - for OSGeo windows installs >> >> and that means it should be something like >> C:/Program Files/Quantum version/share/proj >> for standalone versions (sorry forgot to check before going home - will >> check in the morning). >> >> Paolo, I know string freeze is tomorrow, but is there any chance that these >> two files could be included in 1.7? >> They should be under a CC by Atrrib (Australian variant). >> (I can ring up GA tomorrow and confirm if needed. Do any of the Australians >> on the list know who might be the right person to ask? Just to save me >> stumbling around in the dark a bit.) >> >> Brett, I also had a problem with QGIS remembering CRS but I'll put that in a >> different thread. If you had any test files that you wanted me to check, I'd >> be happy to do so. >> >> -ramon. >> >> >> >> -- >> Brett Adams >> Spinifex Geophysics >> 0438 861 974 >> SKYPE:brettadams_spinifex >> >> _______________________________________________ >> Qgis-user mailing list >> >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-user > > > -- > Brett Adams > Spinifex Geophysics > 0438 861 974 > SKYPE:brettadams_spinifex > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
