Dear Nick and Hamish, Thanks, when I used the query raster over the individual maps for both black and white most gave coordinates plus a 0 or 1, some however gave an * for value. I suspect that even though all the tiles were from the same source and processed in the same way some of the .tif files have ended up as greyscale images.
I have now run ImageMagick convert -monochrome and will reload the tiles and check. If I still have problems I will come back to the list. Kind regards Tim Tim Southern 17, Park Close, Sonning Common, Oxfordshire RG4 9RY On 19 May 2014, at 20:00, grass-user-requ...@lists.osgeo.org wrote: > Send grass-user mailing list submissions to > grass-user@lists.osgeo.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.osgeo.org/mailman/listinfo/grass-user > or, via email, send a message with subject or body 'help' to > grass-user-requ...@lists.osgeo.org > > You can reach the person managing the list at > grass-user-ow...@lists.osgeo.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of grass-user digest..." > > > Today's Topics: > > 1. Re: patching maps together (Nick Ves) > 2. Re: patching maps together (Hamish) > 3. Re: GRASS and Blender (G. Allegri) > 4. GRASS 7.0beta2 (Jon Eiriksson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 19 May 2014 12:39:23 +0300 > From: Nick Ves <vesni...@gmail.com> > To: Tim Southern <tim.south...@talktalk.net> > Cc: Grass Users <grass-user@lists.osgeo.org> > Subject: Re: [GRASS-user] patching maps together > Message-ID: > <cadccpvto6tuc4m_5uemzg-mc6psgvc6brupyx8tchvcvvg_...@mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > Hey Tim, > > If your maps don't overlap with each other you could use r.series in your > case : > > $ g.region rast=$(g.mlist rast sep=",") > > $ r.series input=$(g.mlist rast sep=",") out=myMap method=sum > > N > > On Mon, May 19, 2014 at 11:31 AM, Tim Southern > <tim.south...@talktalk.net> wrote: >> Dear All, >> >> I am trying to patch together a number of 1 km by 1 km tiles of a map whose >> values are either 0 or 1 (black on white background). >> >> If I use r.patch to put 2 tiles together is appears to work fine but if >> however I try and patch more, even if it is two tiles of already patched >> tiles I get one set when patched as black background and white features and >> the other part as white background and black features. It appears that the >> second in the case of already patched data or third and subsequent in case >> of more than 2 tiles is inverted with 1 becoming 0 and 0 becoming 1. >> >> I have tried reducing region to the smallest. Maps are at 0.2m resolution. >> I am hoping to get a 5 tile by 5 tile block >> >> I have tried this across two different platforms (Mac OS and OpenSuse ) on >> the latest downloadable binary versions of GRASS. >> >> Am I doing something wrong? >> >> Kind regards >> >> Tim >> Tim Southern >> >> _______________________________________________ >> grass-user mailing list >> grass-user@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/grass-user > > > ------------------------------ > > Message: 2 > Date: Tue, 20 May 2014 00:05:36 +1200 > From: Hamish <hamish.webm...@gmail.com> > To: Tim Southern <tim.south...@talktalk.net> > Cc: grass-user@lists.osgeo.org > Subject: Re: [GRASS-user] patching maps together > Message-ID: <20140520000536.25baa063189ea1fd178f4...@gmail.com> > Content-Type: text/plain; charset=US-ASCII > > Tim wrote: >> I am trying to patch together a number of 1 km by 1 km tiles of a map >> whose values are either 0 or 1 (black on white background). >> >> If I use r.patch to put 2 tiles together is appears to work fine but >> if however I try and patch more, even if it is two tiles of already >> patched tiles I get one set when patched as black background and >> white features and the other part as white background and black >> features. It appears that the second in the case of already patched >> data or third and subsequent in case of more than 2 tiles is inverted >> with 1 becoming 0 and 0 becoming 1. >> >> I have tried reducing region to the smallest. Maps are at 0.2m >> resolution. I am hoping to get a 5 tile by 5 tile block >> >> I have tried this across two different platforms (Mac OS and OpenSuse >> ) on the latest downloadable binary versions of GRASS. >> >> Am I doing something wrong? > > > I suspect that the images are paletted, and the color palettes differ > between the images. After confirming that you might run the images > through a bulk color palette -> 24bit RGB filter. (I'm not sure what the > right NetPBM or ImageMagick command is, but I'm sure there is one) > > after that, gdalbuildvrt is wonderful for import + patch in one step. > > > good luck, > > -- > Hamish <hamish.webm...@gmail.com> > > > ------------------------------ > > Message: 3 > Date: Mon, 19 May 2014 16:21:55 +0200 > From: "G. Allegri" <gioha...@gmail.com> > To: Vincent Bain <b...@toraval.fr> > Cc: GRASS user list <grass-user@lists.osgeo.org> > Subject: Re: [GRASS-user] GRASS and Blender > Message-ID: > <CAB4g1=wenn5siaue1nugoilnfoxxarkvzjmrx7rev-yerhs...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Thanks Vincent for sharing your experience. > Indeed there aren't production ready (open source) tools to manage the > whole process. > Point data are relatively easier to manage (though they generally bring > their complexities), but CityGML like models, geological models, etc. lack > a ready to use toolbox. > I know that 3D brings exponential difficulties then 2D, and probably theres > isn't such a widespread need for it to have enough investments to support > its development in the FOSS context. > A good work is being done by Sourcepole, with PostGIS + (SF)CGAL, but the > road is still very long... > > giovanni > > > 2014-05-19 11:43 GMT+02:00 Vincent Bain <b...@toraval.fr>: > >> Le lundi 19 mai 2014 ? 09:57 +0200, G. Allegri a ?crit : >>> >>> Do you have experimented robust workflows that can do one or both >>> things? >> >> Hello Giovanni, >> yes in a production context (natural hazrd ingeneering) I do this kind >> of back and forth quite often, but with limited functionality: for my >> personal needs, it is mainly a question of 3d point clouds export/import >> with coordinate system switching; unfortunately I cannot give any advice >> concerning the consistency of attribute data. To keep record of an >> existing database structure within GRASS, perhaps a first step would be >> to export 3d objects with their cat values, so one would retrieve it >> when importing back to GRASS. >> In blender for example I know you can add custom properties to objects >> or classes of objects, but don't know how simple it is to link it with >> e.g. .vtk "POINT_DATA" or .ply feature "property". I'll dig into that. >> >> V. >> >> >> > > > -- > Giovanni Allegri > http://about.me/giovanniallegri > Twitter: https://twitter.com/_giohappy_ > blog: http://blog.spaziogis.it > GEO+ geomatica in Italia http://bit.ly/GEOplus > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.osgeo.org/pipermail/grass-user/attachments/20140519/d03f471c/attachment-0001.html> > > ------------------------------ > > Message: 4 > Date: Mon, 19 May 2014 14:24:33 +0000 > From: "Jon Eiriksson" <j...@hi.is> > To: "GRASS user list" <grass-user@lists.osgeo.org> > Subject: [GRASS-user] GRASS 7.0beta2 > Message-ID: <851236f3-b068-4a4e-9107-aa4b13b86...@hi.is> > Content-Type: text/plain; format=flowed > > Hi, > > I have been running GRASS 7.0 SVN (and frameworks) from Michael Barton's > site since Feruary on two Macs, MacOSX 10.7.5 and MacOSX Mavericks, > happily, on a daily basis. Tried installing the GARSS 7.0beta2 package > and frameworks on the 10.7.5 machine, installation succeeded, but I got > this message on startup: > --- > | ~ @ nfmac129 (je) > | => '/Applications/GRASS/GRASS-7.0.app/Contents/MacOS/grass.sh'; exit > Rebuilding Addon HTML manual pages index... > Rebuilding Addon menu... > Python 2.7.6 found. > arch: posix_spawnp: /opt/local/bin/pythonw2.7: Bad CPU type in > executable > logout > --- > > In Terminal, [which python] gives: > --- > | ~ @ nfmac129 (je) > | => which python > /Library/Frameworks/Python.framework/Versions/2.7/bin/python > > --- > > Tried reinstalling the February Frameworks and GRASS 7.0 SVN package, > but get the same message. > > On the Mavericks machine the installation went OK, GRASS 7.0 started > normally and the wxpython gui seems to work, but a few Terminal commands > I tried give error messages (e.g. [g.list type=vect] is not recognised). > > Installation of GRASS-7.0beta1 failed when I tried about a month ago, > decided to wait for the next beta release. > > As I do not know what the message means (is there something wrong on my > mac, perhaps?) Any ideas would be welcome, have other users had similar > problems? > > Jon > > > > > > > > ------------------------------ > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > > End of grass-user Digest, Vol 97, Issue 18 > ****************************************** _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
