#QGIS IRC Log - 2009-06-25

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01:28:35 CIA-55: dassau * r10977 /docs/trunk/english_us/gis_introduction/ ( 212 files in 13 dirs ):
01:28:35 CIA-55: added new folder gis_introduction tutorial for gis beginners
01:28:35 CIA-55: started with the first two units - more to come
06:45:54 CIA-55: mhugent * r10978 /trunk/qgis/src/app/ ( qgisapp.cpp qgsmaptoolidentify.cpp qgsmaptoolidentify.h ): Applied patch to fix bug #1747. Thanks to gcarrillo!
06:46:11 sigq: tracfeed: Changeset [10978]: Applied patch to fix bug #1747. Thanks to gcarrillo! <https://trac.osgeo.org/qgis/changeset/10978>
06:47:16 sigq: tracfeed: Ticket #1747 ( patch closed ): Identify Map Tool: QGis crashes when the results dialog has multiple features and the active layer is remove <https://trac.osgeo.org/qgis/ticket/1747#comment:1>
07:12:42 WidgetAlley: Hullo again all, quick newb question: I've added a delimited text layer with coordinates of points, and it seems to work fine, but when I go to the symbology tab and select an icon to represent the individual points, nothing is displayed. What's up? I have a feeling I'm missing something obvious.
07:14:51 FiReSTaRT: you mean unique values symbology?
07:16:22 WidgetAlley: Actually I was using single symbol, since all the points are the same. Do I need to be using unique value?
07:17:05 WidgetAlley: The points are all the same TYPE of location, I mean, rather than the same geographic location. ( Mapping the location of legal non-profits across counties, just want little stars to represent them... )
07:17:19 FiReSTaRT: ahhh ok
07:17:24 FiReSTaRT: that should be simple
07:18:07 FiReSTaRT: open the symbology and if the legend type is single symbol, you can just select a different symbol.. make sure that the size and the fill colour are distinguishable against other layers
07:18:53 WidgetAlley: Okay, let me try it...
07:20:10 FiReSTaRT: ok.. ill be here for another 5, taking a quick 15min break, and then be back for a while : )
07:20:14 WidgetAlley: The symbols still don't show up. I even scaled them up to a ridiculously huge size, thinking I was missing them, and they're simply not there. The layer box in the legend is checked, so the csv layer should be displaying...
07:20:21 WidgetAlley: That's cool mate, I appreciate the help.
07:21:10 FiReSTaRT: what about colours?
07:21:31 WidgetAlley: Changed 'em a couple of times.
07:21:34 FiReSTaRT: and were they showing up before?
07:21:38 FiReSTaRT: try zoom to layer
07:21:57 WidgetAlley: No, not even when I first load the layer did they show up.
07:22:00 WidgetAlley: loaded^
07:22:35 WidgetAlley: Okay.... weird... I zoomed to the layer and they show up now. Hunh.
07:23:04 FiReSTaRT: not really... but you may be having some projection issues... make sure you use the ftools to define the projection : )
07:23:09 FiReSTaRT: ooops
07:23:16 FiReSTaRT: u can define the projection from the regular menu
07:23:19 FiReSTaRT: and ftools to reproject
07:23:34 WidgetAlley: Cool.
07:23:42 WidgetAlley: Thanks!
07:23:50 WidgetAlley: I would not have thought of that. Glad I have fTools installed.
07:24:54 FiReSTaRT: yes.. but they are only to be used to project into a different crs.. if you define a correct crs for the layer, it should be visible against your other layers without using them
07:25:18 FiReSTaRT: but yeah, vector work would be a real bitch without'em.... Carson rocks lol
07:25:48 WidgetAlley: Yes indeed. Hrm. I wrote the CRS myself, it's very simple, just location, lat and long.
07:26:27 FiReSTaRT: ahh ok unprojected
07:26:52 WidgetAlley: I have the "CRS on the fly" transformation enabled, would that make a difference?
07:27:05 FiReSTaRT: so if you want to project the data to have a matching crs for the whole project ( highly recommended not only for the whole project but also for the whole organisation if possible )
07:27:08 FiReSTaRT: use the ftools
07:27:31 WidgetAlley: Sweet. Thank you very much!
07:28:38 WidgetAlley: And for the projection, what would you suggest for extremely simple non-topographical work?
07:28:47 FiReSTaRT: no worries.. as for the on the fly transformation, yes it works : )
07:29:06 FiReSTaRT: well it depends on the region you're covering.. is it global or localized?
07:29:41 FiReSTaRT: if it's global, i'd even consider leaving it unprojected for now and then decide whether you want to preserve shapes, areas, distances etc etc etc
07:29:56 WidgetAlley: Fairly localized... the largest area I will be using is one state, and most of it is by-county work.
07:30:50 WidgetAlley: Heh, I think I would be getting a little ahead of myself to try global at this point. ( Maybe someday! )
07:31:15 FiReSTaRT: lol
07:32:12 FiReSTaRT: as long as the state is in the same utm zone, your best bet would probably be utm nad83... distortion is minimised : )
07:32:26 FiReSTaRT: very easy to work with
07:33:15 WidgetAlley: Sounds good to me.
07:33:23 WidgetAlley: Thank you very much, once again!
07:33:28 FiReSTaRT: no worries : )
07:33:50 FiReSTaRT: oh another one you can use is state plane ( if you're in the states )
07:34:24 WidgetAlley: Cool. I will see which one catches my fancy.
07:35:02 FiReSTaRT: to me state plane is haphazard and too localized... utm is more systematic and applies to the whole world
07:36:44 WidgetAlley: Awesome. That sounds better, so that if someone takes over and expands the project after me, they won't have to tweak it again.
07:38:19 FiReSTaRT: not much tweaking required but yeah, might as well keep it systematic : )
07:38:32 FiReSTaRT: living in the global village and all :P
07:38:53 WidgetAlley: Hm.
07:38:56 WidgetAlley: It's giving me a Python error.
07:39:05 FiReSTaRT: what's giving you a python error?
07:39:19 WidgetAlley: Trying to define the projection for the CSV layer through FTools.
07:39:45 WidgetAlley: Turns out all the other layers have NAD83 enabled, so I'm trying to import the spatial reference system from those layers.
07:40:29 WidgetAlley: And it gives me an "no such file or directory" error.
07:42:55 FiReSTaRT: it depends.. if there is no .prj file associated with them, even if you know the data is in utm nad83, it could still be "undefined" as far as qgis is concerned
07:43:41 WidgetAlley: There's a .prj for all of the shapefiles.
07:43:51 FiReSTaRT: weird
07:44:05 FiReSTaRT: define it manually then
07:44:07 WidgetAlley: Yup. But I'll just select 'em manually, no worries.
07:44:13 WidgetAlley: Lol.
07:44:49 FiReSTaRT: ok i better run now... bbin15 or so : )
07:46:02 WidgetAlley: No worries! :D
08:01:10 FiReSTaRT: back : )
08:03:36 FiReSTaRT: ok looks like you're chugging away happily, so i'll go and play some trade wars :P
08:04:54 WidgetAlley: Actually, I'm still trying to figure it out. ( But Trade Wars is awesome! )
08:05:32 WidgetAlley: I've opened a new project so it's clean, uploaded my shapefile and CRS, made absolutely sure through FTools they're in the same projection, and I can still see one or the other but not both.
08:06:17 WidgetAlley: ( They're in WGS84 for the purposes of the experiment. )
08:12:43 WidgetAlley: ....
08:12:44 WidgetAlley: Oh my God.
08:12:50 WidgetAlley: We're going to pretend that this didn't happen.
08:13:16 WidgetAlley: Somehow QGIS switched my lat/long coordinates when it imported the CSV file. No wonder it wasn't showing up.
08:13:53 WidgetAlley: Oh, God, these conversations are logged, aren't they? LOL. Well, I've learned a lot and thank you very much for all the help. When something REALLY goes wrong now I'll know how to handle it.
08:14:18 WidgetAlley: *shuffles off looking mildly ashamed*
08:36:19 rtb: WidgetAlley: Thank you. Now I won't be so reluctant to ask my own "dumb questions" in the future. ; )
08:41:09 WidgetAlley: I didn't think it was.... oh well. Live and learn.
08:52:12 WidgetAlley: Thank you again! I'm sure I'll be back with more dumb questions.... :D
08:59:11 CIA-55: jef * r10979 /trunk/qgis/ ( 2 files in 2 dirs ): fix a warning and add a note about QgsVectorDataProvider::addAttributes( ) change
10:42:43 CIA-55: macho * r10980 /trunk/qgis/i18n/qgis_vi.ts: translation update: vietnamese by Huu Manh Bui
10:45:39 sigq: tracfeed: Changeset [10980]: translation update: vietnamese by Huu Manh Bui <https://trac.osgeo.org/qgis/changeset/10980>
12:16:48 jctull: I posted a bug comment that should show up in a moment.
12:17:02 jctull: I wonder if the Print Composer is using qt3 libs?
15:14:37 cgs_bob: hello all. This is a bit off topic : ) I just extracted a netcdf subdataset using gdal_translate. unfortunately the coordinates seems to be reversed. what can I do about that?
15:25:41 macho: some arguments changed?