[Qgis-user] FOSS GIS blog
If you've not seen it already, here's a great blog from John Stevenson of Edinburgh Uni: http://all-geo.org/volcan01010/2011/11/all-the-software-a-geoscientists-needs-for-free/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error in Georeferencer tool
I was suspecting something like this too. But the question is that the CRS of the input image should be, by definition, unknown. In case the input image has a CRS, this CRS should be just ignored. Instead, the plugin actually prompts the user about the CRS of the input image. And I do not find any way to set the input CRS to unknown or just arbitrary x,y coordinates (while this is possible in Grass). Where you say: Upon resetting the CRS specified in the layer properties to the correct one, all was well do you refer to the input or to the output image? Agus 2011/11/27 Dennis M. Linton den...@dmlinton.net ** I have observed this behaviour in QGIS 1.7.2 and found, upon reviewing the layer properties of the georectified layer, that the coordinate reference system being used was NOT the one specified in the Georeferencing plugin. Rather, the CRS was some unknown custom CRS. Upon resetting the CRS specified in the layer properties to the correct one, all was well. Hope this helps. Best regards, Dennis -- Dennis M. Linton, P.Eng. Tel: +1 (613) 473-1015 Cell: +1 (705) 312-1336 Skype: thedmlinton On Sun, 2011-11-27 at 22:10 +0100, Agustin Lobo wrote: Hi! We are using the Georeferencer tool and the resulting image is shifted, please see the screenshot here:https://sites.google.com/site/filestemp2/home/error_georef.jpg?attredirects=0 We've tried polynomia of order 1 and 2 and Helmert, with very similar results. I think this is a bug, but I'm not sure we are not actually doing something wrong. Agus ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] adding HDF-EOS (.hdf) rasters?
I have the same issue with netcdf files with multiple datasets. (using QGis and GDAL trunk). Could this be related to the GDAL raster provider? regards, Etienne On Sun, Nov 27, 2011 at 11:10 AM, Ivan Shmakov oneing...@gmail.com wrote: I vaguely recall that (in 1.7.0?) when an HDF-EOS (.hdf) file was selected while adding a raster, QGIS was to show a dialog to select the particular HDF-EOS field (variable) to be added. Now, in 1.7.1, QGIS simply states that it can't load the file selected. (Tried on many, including, for instance, [1].) Is it a regression, or something else? The work-around that seems to work for me is to use gdal_translate(1) to prepare the respective GDAL Virtual Raster (.vrt), and load the latter instead. TIA. [1] ftp://e4ftl01.cr.usgs.gov/MODIS_Dailies_B/MOLA/MYD09CMG.005/2011.11.14/MYD09CMG.A2011318.005.2011320043437.hdf -- FSF associate member #7257 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error in Georeferencer tool
Hi, Agus; You set your desired CRS in the Georeferencing properties. What I am saying is that this setting seems to be ignored and, in place of the specified CRS, some strange unknown custom CRS is substituted. By going to the layer properties for the georeferenced layer (after it has been added to your project) and resetting the CRS to the correct one, the georeferenced layer then displays properly. This is my experience anyhow - particularly using Google or OSM (both have Google Mercator CRS) maps as reference. Best regards, Dennis I was suspecting something like this too. But the question is that the CRS of the input image should be, by definition, unknown. In case the input image has a CRS, this CRS should be just ignored. Instead, the plugin actually prompts the user about the CRS of the input image. And I do not find any way to set the input CRS to unknown or just arbitrary x,y coordinates (while this is possible in Grass). Where you say: Upon resetting the CRS specified in the layer properties to the correct one, all was well do you refer to the input or to the output image? Agus 2011/11/27 Dennis M. Linton den...@dmlinton.net ** I have observed this behaviour in QGIS 1.7.2 and found, upon reviewing the layer properties of the georectified layer, that the coordinate reference system being used was NOT the one specified in the Georeferencing plugin. Rather, the CRS was some unknown custom CRS. Upon resetting the CRS specified in the layer properties to the correct one, all was well. Hope this helps. Best regards, Dennis -- Dennis M. Linton, P.Eng. Tel: +1 (613) 473-1015 Cell: +1 (705) 312-1336 Skype: thedmlinton On Sun, 2011-11-27 at 22:10 +0100, Agustin Lobo wrote: Hi! We are using the Georeferencer tool and the resulting image is shifted, please see the screenshot here:https://sites.google.com/site/filestemp2/home/error_georef.jpg?attredirects=0 We've tried polynomia of order 1 and 2 and Helmert, with very similar results. I think this is a bug, but I'm not sure we are not actually doing something wrong. Agus ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error in Georeferencer tool
Unfortunately this is not the case with ED50 UTM31N: the resulting layer has the correct CRS, but it is shifted. The points appear where they have to be, but the raster layer is shifted. We'll try with points set on google mercator. Thanks 2011/11/28 den...@dmlinton.net: Hi, Agus; You set your desired CRS in the Georeferencing properties. What I am saying is that this setting seems to be ignored and, in place of the specified CRS, some strange unknown custom CRS is substituted. By going to the layer properties for the georeferenced layer (after it has been added to your project) and resetting the CRS to the correct one, the georeferenced layer then displays properly. This is my experience anyhow - particularly using Google or OSM (both have Google Mercator CRS) maps as reference. Best regards, Dennis I was suspecting something like this too. But the question is that the CRS of the input image should be, by definition, unknown. In case the input image has a CRS, this CRS should be just ignored. Instead, the plugin actually prompts the user about the CRS of the input image. And I do not find any way to set the input CRS to unknown or just arbitrary x,y coordinates (while this is possible in Grass). Where you say: Upon resetting the CRS specified in the layer properties to the correct one, all was well do you refer to the input or to the output image? Agus 2011/11/27 Dennis M. Linton den...@dmlinton.net ** I have observed this behaviour in QGIS 1.7.2 and found, upon reviewing the layer properties of the georectified layer, that the coordinate reference system being used was NOT the one specified in the Georeferencing plugin. Rather, the CRS was some unknown custom CRS. Upon resetting the CRS specified in the layer properties to the correct one, all was well. Hope this helps. Best regards, Dennis -- Dennis M. Linton, P.Eng. Tel: +1 (613) 473-1015 Cell: +1 (705) 312-1336 Skype: thedmlinton On Sun, 2011-11-27 at 22:10 +0100, Agustin Lobo wrote: Hi! We are using the Georeferencer tool and the resulting image is shifted, please see the screenshot here:https://sites.google.com/site/filestemp2/home/error_georef.jpg?attredirects=0 We've tried polynomia of order 1 and 2 and Helmert, with very similar results. I think this is a bug, but I'm not sure we are not actually doing something wrong. Agus ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] announcing time series plot plugin (experimental)
Any feedback is appreciated! /joskal Hi Josef, thanks for the plugin. Just to let you know that the plugin GUI is not optimized for being viewed on Linux (see attached image). Also when clicking on select db it would be nice to have the files filtered in order to show only the .sqlite ones. Cheers -- Giovanni -- attachment: Screenshot at 2011-11-28 13:23:44.png___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
This is tricky: if you select advanced - select scale field *before* hitting classify then the size symbols won't be scaled. If you do the other way it will work as expected. cheers -- Giovanni -- On Tue, 2011-11-22 at 09:03 -0600, David Fawcett wrote: I can confirm that this is a problem in 1.8.0-Trunk. Graduated symbols used to 'just work', now they don't. If they do somehow still work, it is very unintuitive. I recently tried to show off some data using QGIS in a workshop that I was teaching. I had upgraded QGIS to show off the latest look and features. It was embarrassing when I couldn't do something simple like make graduated size symbols... Here is the version that I am using (on Win32) QGIS version 1.8.0-Trunk QGIS code revision 33b7e31 Compiled against Qt 4.7.1 Running against Qt 4.7.1 GDAL/OGR Version 1.8.1 GEOS Version 3.2.2 PostgreSQL Client Version 8.3.10 SpatiaLite Version 2.4.0 QWT Version 5.2.1 This copy of QGIS writes debugging outpute. David. On Mon, Nov 14, 2011 at 10:06 AM, Caroline Rendon caroline.t.ren...@gmail.com wrote: Hi Sake, This doesn't work for me. The symbols still appear in graduated colors, all the same size - and the size doesn't seem to change when I change the number, although it does between millimeters and map units. I'm sure there's just something I'm missing (I'm new to QGIS) but I can't figure it out. Thanks for your help! Caroline On Sat, Nov 12, 2011 at 3:08 AM, Sake Wagenaar sw1...@planet.nl wrote: Hi Caroline, If you use new symbology, the option to scale point symbols is hidden under the button 'Advanced'. With 'Size scale field' you can select a field. Next you have to change 'Size', to give the symbols the size you want. If the values are large, and you use millimeters, the symbols get much too large, even if you use the smallest possible value for Size (0,01). A better option is to use map units. Sake Wagenaar Op 11-11-2011 23:08, Caroline Rendon schreef: Hi, I'm trying to create graduated symbols for a point layer, and the only option it will give me is by color, but I want graduated symbols by size. I was only able to get the color to work with old symbology because in new symbology the layer would just disappear altogether and I had to re-add it. So in old symbology I can get dots of different colors but not different sizes. Am I missing a plugin or something? I'm working in 1.7.1 on Win XP. Thanks in advance for your help!! Caroline Rendon ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] announcing time series plot plugin (experimental)
Hi Josef, On Thu, Nov 24, 2011 at 8:34 AM, josef k groundwater...@gmail.com wrote: Hi Anita, I am glad you find some use for it! I did choose SpatiaLite since I deal with quite a lot of data from several sites at the same time. Are you using any of SpatiaLite's functions? Would it be difficult to adjust the code so it could handle arbitrary vector data sources? It turned out that spaialite is a great data container for me and my colleagues since we only have to deal with one single (and portable) db file for each site. Furthermore, since we are mainly hydrogeologists and for sure no db gurus, spatialite seemed lika a much easier way to start organizing things than e.g. post-GIS. There are some reasons why I don't use Spatialite much, e.g. the combination of QGIS + Spatialite has some issues if you define database views and try to import them into QGIS. The data types are screwed up often, which in turn makes it impossible to visualize the features by their (numerical) attributes. Once PostGIS is set up, I've found it to be much more reliable and predictable than Spatialite. e.g. Spatialite's weak typing lead to unexpected results. Therefore, I'd suggest implementing support for other vector formats available in QGIS before building new features. A broader setup will attract more interested users and possible developers. Best wishes, keep up the good work! Anita I also hope that I (or anyone else that finds it interesting) will get time to extend the plugin to include more ways of visualising other hydrogeo data from the same spatialite db. Additional functions would be stratigraphy plots (similar to ARPAT), time change visualisation (as your Time Manager), gesection profiling, some R statistics etc. (Could be a lightweight alternative to the core functionality of ArcHydro GW data model and tools.) regards josef 2011/11/23 Anita Graser anitagra...@gmx.at Looks great! I'd have quite a lot of use cases for such a plugin. Any specific reason why it's limited to Spatialite as a data source? Best wishes, Anita On Wed, Nov 23, 2011 at 10:18 PM, josef k groundwater...@gmail.comwrote: Fellow QGIS-Users! I just finished my first QGIS python plugin in an experimental version. The plugin uses pyspatialite and matplotlib to load data from a sqlite database and plot it by matplotlib plot command. The intended use is for e.g. hydrogeologists (i.e. me) to quickly select features that corresponds to observation wells, stream gauges or other measuring stations with data to be plotted and then quickly (yes I am in a hurry) have a window with time series plot for zooming, panning and visually examine the data (I know it is not very scientific but I do perform some serious data analysis at a later stage...). Anyway, the plugin is named TimeSeriesPlot, marked as experimental, and found in QGIS User-Contributed Python Plugin Repository. Screenshot: https://docs.google.com/open?id=0B1vhrFUx2OZBODQ5YjJjZjgtYzkyNC00NmQwLWFiYWQtNjkzYmE2MGY0MzY4 Instructions are found in the readme.txt file shipped with the plugin. Download some sample sqlite data: https://docs.google.com/open?id=0B1vhrFUx2OZBNjExNDMwYTYtYWQzYi00YzVlLWI4M2ItNWM2NjZmYTAwNDU4 And a (silent) video: http://www.youtube.com/watch?v=xqG5B780Q04 Any feedback is appreciated! /joskal ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] how to cut a linestring with split features without get many linestrings
Tried and confirmed. Indeed splitting this ONE (selfcrossing) line using the 'advanced editing tools' / Split Features on ONE point results in 15 (!) parts?? I confirm it. When splitting this self-intersecting line then the result is also split in every (self)intersection point. Please file a ticket if not already. cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Proportionnal point for polygon
Hi Yves, I choose graduate style, change the symbol to centroid fill and create the class. My point symbol are not proportionnal. I can confirm that the size scale field does not work with the centroid renderer. Martin, is this supposed to work or we can add it to the list of feature requests for the new symbology? Finally, is it possible to define a transparent border for such ponctual symbol with a large width (5 px for example)? make the border color the same as the fill color? cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] RE: manageR doesn't work well
An error has occured while executing Python code: Traceback (most recent call last): File C:/Users/SailerU/.qgis/python/plugins\manageR\plugin.py, line 58, in run from manageR import MainWindow, loadConfig, saveConfig File C:/PROGRA~1/QUANTU~1/apps/qgis/./python\qgis\utils.py, line 283, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File C:/Users/SailerU/.qgis/python/plugins\manageR\manageR.py, line 68, in import rpy2.robjects as robjects File C:/PROGRA~1/QUANTU~1/apps/qgis/./python\qgis\utils.py, line 283, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File C:\PROGRA~1\QUANTU~1\apps\Python25\lib\site-packages\rpy2\robjects\__init__.py, line 12, in import rpy2.rinterface as rinterface File C:/PROGRA~1/QUANTU~1/apps/qgis/./python\qgis\utils.py, line 283, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File C:\PROGRA~1\QUANTU~1\apps\Python25\lib\site-packages\rpy2\rinterface\__init__.py, line 52, in raise RuntimeError(Unable to locate R.dll within %s % R_HOME) RuntimeError: Unable to locate R.dll within C:\Program Files\R\R-2.13.0 Python version: 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] Hi! I'm Elena, I'm a new user of QGis. I'm using it from the GUI, not from the command line.. I'm not a programmer. I need to look for some statistical correlation between two field of the same layer.. What can I do? I tried to install the ManageR plugin, but when I started it, QGis give me this: QGIS version: 1.7.0-Wroclaw Wroclaw, 63ecdd7 Python path: ['C:/PROGRA~1/QUANTU~1/apps/qgis/./python', 'C:/Users/SailerU/.qgis/python', 'C:/Users/SailerU/.qgis/python/plugins', 'C:/PROGRA~1/QUANTU~1/apps/qgis/./python/plugins', 'C:\\PROGRA~1\\QUANTU~1\\bin\\python25.zip', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\DLLs', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\plat-win', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\lib-tk', 'C:\\PROGRA~1\\QUANTU~1\\apps\\qgis\\bin', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\site-packages', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\site-packages\\win32', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\site-packages\\win32\\lib', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\site-packages\\Pythonwin', 'C:\\PROGRA~1\\QUANTU~1\\apps\\Python25\\lib\\site-packages\\wx-2.8-msw-unicode', 'C:\\Users\\SailerU\\.qgis\\python\\plugins\\fTools\\tools', 'C:/LAVORI/Dottorato_DCA/Catalonya_Inventory'] In Windows I have R 2.13.0 installed.. I don't know what to do.. Thank you to everyone would help me! Elena -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/manageR-doesn-t-work-well-tp5543144p7039112.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
To me, I don't know if this is a bug or not, but it is definitely not intuitive for new (or old) users... On Mon, Nov 28, 2011 at 7:37 AM, Giovanni Manghi giovanni.man...@gmail.com wrote: This is tricky: if you select advanced - select scale field *before* hitting classify then the size symbols won't be scaled. If you do the other way it will work as expected. cheers -- Giovanni -- On Tue, 2011-11-22 at 09:03 -0600, David Fawcett wrote: I can confirm that this is a problem in 1.8.0-Trunk. Graduated symbols used to 'just work', now they don't. If they do somehow still work, it is very unintuitive. I recently tried to show off some data using QGIS in a workshop that I was teaching. I had upgraded QGIS to show off the latest look and features. It was embarrassing when I couldn't do something simple like make graduated size symbols... Here is the version that I am using (on Win32) QGIS version 1.8.0-Trunk QGIS code revision 33b7e31 Compiled against Qt 4.7.1 Running against Qt 4.7.1 GDAL/OGR Version 1.8.1 GEOS Version 3.2.2 PostgreSQL Client Version 8.3.10 SpatiaLite Version 2.4.0 QWT Version 5.2.1 This copy of QGIS writes debugging outpute. David. On Mon, Nov 14, 2011 at 10:06 AM, Caroline Rendon caroline.t.ren...@gmail.com wrote: Hi Sake, This doesn't work for me. The symbols still appear in graduated colors, all the same size - and the size doesn't seem to change when I change the number, although it does between millimeters and map units. I'm sure there's just something I'm missing (I'm new to QGIS) but I can't figure it out. Thanks for your help! Caroline On Sat, Nov 12, 2011 at 3:08 AM, Sake Wagenaar sw1...@planet.nl wrote: Hi Caroline, If you use new symbology, the option to scale point symbols is hidden under the button 'Advanced'. With 'Size scale field' you can select a field. Next you have to change 'Size', to give the symbols the size you want. If the values are large, and you use millimeters, the symbols get much too large, even if you use the smallest possible value for Size (0,01). A better option is to use map units. Sake Wagenaar Op 11-11-2011 23:08, Caroline Rendon schreef: Hi, I'm trying to create graduated symbols for a point layer, and the only option it will give me is by color, but I want graduated symbols by size. I was only able to get the color to work with old symbology because in new symbology the layer would just disappear altogether and I had to re-add it. So in old symbology I can get dots of different colors but not different sizes. Am I missing a plugin or something? I'm working in 1.7.1 on Win XP. Thanks in advance for your help!! Caroline Rendon ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] RE: manageR doesn't work well
Thank you Giovanni, but the link you send me is not working on my pc. Cheers, Elena -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/manageR-doesn-t-work-well-tp5543144p7039286.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] RE: manageR doesn't work well
On Mon, 2011-11-28 at 08:15 -0800, Elena Mezzini wrote: Thank you Giovanni, but the link you send me is not working on my pc. Use VLC media player - open network stream should work. cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] RE: manageR doesn't work well
Now it's working well. No error after the installation and no error when initializing the plugin. Thank you! Cheers Elena -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/manageR-doesn-t-work-well-tp5543144p7039611.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
On Mon, Nov 28, 2011 at 10:37 AM, Giovanni Manghi giovanni.man...@gmail.com wrote: This is tricky: if you select advanced - select scale field *before* hitting classify then the size symbols won't be scaled. If you do the other way it will work as expected. Feel free to open a ticket for that issue. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
I've gotten the graduated symbols to work after discovering the trick Giovanni mentioned, but now my problem is that they don't show up as graduated by class, but rather by each individual quantity. This is a problem because my quantities range from 50 to 2,800, so I'm not able to get something that's neither too big nor too small. Also they don't show up as graduated in the legend, so I've had to create the legend piece by piece. Caroline On Mon, Nov 28, 2011 at 12:19 PM, Martin Dobias wonder...@gmail.com wrote: On Mon, Nov 28, 2011 at 10:37 AM, Giovanni Manghi giovanni.man...@gmail.com wrote: This is tricky: if you select advanced - select scale field *before* hitting classify then the size symbols won't be scaled. If you do the other way it will work as expected. Feel free to open a ticket for that issue. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] announcing time series plot plugin (experimental)
Hi Anita, I definitely see your point that implementing other data formats may attract other interested users and possible developers. At the moment, the code simply sends a few simple sql-statements to the sqlite table with time series data so for that reason there should not be too much of a work to change data format. I guess those sql statements could be addressed to a post-GIS database as well. The major holdback for such a change is probably my own lack of time and lack of coding skills. But I may try to learn som post-GIS basics some day, just that much I can let the plugin read that data format. It is just too bad that adding a csv table to qgis results in string values only (or have I misunderstood?). Otherwise it might be the quick-fix to let the plugin be useful with more widely spread data formats. Thank you for your valuble feedback, I really appreciate it! Best regards Josef 2011/11/28 Anita Graser anitagra...@gmx.at Hi Josef, On Thu, Nov 24, 2011 at 8:34 AM, josef k groundwater...@gmail.com wrote: Hi Anita, I am glad you find some use for it! I did choose SpatiaLite since I deal with quite a lot of data from several sites at the same time. Are you using any of SpatiaLite's functions? Would it be difficult to adjust the code so it could handle arbitrary vector data sources? It turned out that spaialite is a great data container for me and my colleagues since we only have to deal with one single (and portable) db file for each site. Furthermore, since we are mainly hydrogeologists and for sure no db gurus, spatialite seemed lika a much easier way to start organizing things than e.g. post-GIS. There are some reasons why I don't use Spatialite much, e.g. the combination of QGIS + Spatialite has some issues if you define database views and try to import them into QGIS. The data types are screwed up often, which in turn makes it impossible to visualize the features by their (numerical) attributes. Once PostGIS is set up, I've found it to be much more reliable and predictable than Spatialite. e.g. Spatialite's weak typing lead to unexpected results. Therefore, I'd suggest implementing support for other vector formats available in QGIS before building new features. A broader setup will attract more interested users and possible developers. Best wishes, keep up the good work! Anita I also hope that I (or anyone else that finds it interesting) will get time to extend the plugin to include more ways of visualising other hydrogeo data from the same spatialite db. Additional functions would be stratigraphy plots (similar to ARPAT), time change visualisation (as your Time Manager), gesection profiling, some R statistics etc. (Could be a lightweight alternative to the core functionality of ArcHydro GW data model and tools.) regards josef 2011/11/23 Anita Graser anitagra...@gmx.at Looks great! I'd have quite a lot of use cases for such a plugin. Any specific reason why it's limited to Spatialite as a data source? Best wishes, Anita On Wed, Nov 23, 2011 at 10:18 PM, josef k groundwater...@gmail.comwrote: Fellow QGIS-Users! I just finished my first QGIS python plugin in an experimental version. The plugin uses pyspatialite and matplotlib to load data from a sqlite database and plot it by matplotlib plot command. The intended use is for e.g. hydrogeologists (i.e. me) to quickly select features that corresponds to observation wells, stream gauges or other measuring stations with data to be plotted and then quickly (yes I am in a hurry) have a window with time series plot for zooming, panning and visually examine the data (I know it is not very scientific but I do perform some serious data analysis at a later stage...). Anyway, the plugin is named TimeSeriesPlot, marked as experimental, and found in QGIS User-Contributed Python Plugin Repository. Screenshot: Instructions are found in the readme.txt file shipped with the plugin. Download some sample sqlite data: And a (silent) video: Any feedback is appreciated! /joska ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
On Mon, 2011-11-28 at 14:55 -0600, Caroline Rendon wrote: I've gotten the graduated symbols to work after discovering the trick Giovanni mentioned, but now my problem is that they don't show up as graduated by class, but rather by each individual quantity. This is a problem because my quantities range from 50 to 2,800, so I'm not able to get something that's neither too big nor too small. Also they don't show up as graduated in the legend, so I've had to create the legend piece by piece. are you using the graduated symbology? cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
Yes, I am using the graduated symbology. On Mon, Nov 28, 2011 at 3:35 PM, Giovanni Manghi giovanni.man...@gmail.comwrote: On Mon, 2011-11-28 at 14:55 -0600, Caroline Rendon wrote: I've gotten the graduated symbols to work after discovering the trick Giovanni mentioned, but now my problem is that they don't show up as graduated by class, but rather by each individual quantity. This is a problem because my quantities range from 50 to 2,800, so I'm not able to get something that's neither too big nor too small. Also they don't show up as graduated in the legend, so I've had to create the legend piece by piece. are you using the graduated symbology? cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
On Mon, 2011-11-28 at 15:52 -0600, Caroline Rendon wrote: Yes, I am using the graduated symbology. Then after creating the classes by hitting classify you shoukd be able to add/remove classes at wish and also edit the class ranges/labels manually (by double clicking them), to fit better your needs. cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
Perfect! Thank you so much! On Mon, Nov 28, 2011 at 3:59 PM, Giovanni Manghi giovanni.man...@gmail.comwrote: On Mon, 2011-11-28 at 15:52 -0600, Caroline Rendon wrote: Yes, I am using the graduated symbology. Then after creating the classes by hitting classify you shoukd be able to add/remove classes at wish and also edit the class ranges/labels manually (by double clicking them), to fit better your needs. cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: home range plugin + R on the OSGeo Live DVD 5.0?
Hamish wrote: I am trying to get Anne's home range plugin working on the OSGeo Live 5.0 DVD (xubuntu 11.04) after an 'apt-get update'. (now with latest qgis 1.7.2 from ubuntuGIS's ppa) [...] Warning message: In getDependencies(pkgs, dependencies, available, lib) : package 'gcplib' is not available (for R version 2.14.0) Anne wrote: It is there, though: http://cran.stat.auckland.ac.nz/src/contrib/gpclib_1.5-1.tar.gz look for the tiny typo in the package name... :) d'oh! apparently Ground Control Points have invaded my brain. ok, with correct spelling the cran package installs ok. Let me know if HR plugin will work! now on to the next trouble, I can enable the manageR plugin, but not find Home Range amongst the list of plugins to fetch or manage. manageR: argh - Segmentation fault when I click on the R in the qgis toolbar. shouldn't have upgraded. By starting QGIS with an empty LD_LIBRARY_PATH the manageR plugin works again. (running /usr/bin/qgis.bin directly) Also it works if I run it through gdb, so no backtrace. Actually now it works if I run the qgis wrapper script direct from the command line. ?! oh well. (I did move away old 1.7.0 ~/.qgis/ and ~/.config/ files) oh well, manageR is working again now, so moving on. within manageR I can do library(adehabitat) help(squirrel) etc. all seems ok. But where is the Home Range plugin? I can't find it on the list. QGIS - Plugins menu - Fetch python plugins ... [connects to server, brings up a list of 20-30 plugins, all installed except for 'Zoom to Point'] filtering on home results in 0 hits. the repository I'm connected to is pyqgis.org/repo/official ? related to the move to hub.qgis.org? (!?) thanks, Hamish ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: home range plugin + R on the OSGeo Live DVD 5.0?
On 11/28/2011 07:46 PM, Hamish wrote: Hamish wrote: I am trying to get Anne's home range plugin working on the OSGeo Live 5.0 DVD (xubuntu 11.04) after an 'apt-get update'. (now with latest qgis 1.7.2 from ubuntuGIS's ppa) [...] Warning message: In getDependencies(pkgs, dependencies, available, lib) : package 'gcplib' is not available (for R version 2.14.0) Anne wrote: It is there, though: http://cran.stat.auckland.ac.nz/src/contrib/gpclib_1.5-1.tar.gz look for the tiny typo in the package name... :) d'oh! apparently Ground Control Points have invaded my brain. ok, with correct spelling the cran package installs ok. Let me know if HR plugin will work! now on to the next trouble, I can enable the manageR plugin, but not find Home Range amongst the list of plugins to fetch or manage. manageR: argh - Segmentation fault when I click on the R in the qgis toolbar. shouldn't have upgraded. By starting QGIS with an empty LD_LIBRARY_PATH the manageR plugin works again. (running /usr/bin/qgis.bin directly) Also it works if I run it through gdb, so no backtrace. Actually now it works if I run the qgis wrapper script direct from the command line. ?! oh well. (I did move away old 1.7.0 ~/.qgis/ and ~/.config/ files) oh well, manageR is working again now, so moving on. within manageR I can do library(adehabitat) help(squirrel) etc. all seems ok. But where is the Home Range plugin? I can't find it on the list. QGIS - Plugins menu - Fetch python plugins ... [connects to server, brings up a list of 20-30 plugins, all installed except for 'Zoom to Point'] filtering on home results in 0 hits. the repository I'm connected to is pyqgis.org/repo/official ? related to the move to hub.qgis.org? (!?) thanks, Hamish Add 3rd party repos, I think Home Range is from the Faunalia repo. Enjoy, Alex ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Critical problems with 1.7.2 from ubuntu binaries
After updating to 1.7.2 in ubuntu 10.4 LTS using the ubuntugis-unstable repo, the CRS cannot be set: Could not open CRS database /resources/srs.dbbrError(14): unable to open database file! and almost all plugins are gone (including plugin installer). Agus ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error in Georeferencer tool
I've uploaded the input layer and points file to: https://sites.google.com/site/filestemp2/home/Ilerfly125v2.tif?attredirects=0d=1 https://sites.google.com/site/filestemp2/home/Ilerfly125v2.tif.points?attredirects=0d=1 in case someone could test prior reporting this as a bug. Agus 2011/11/28 Agustin Lobo alobolis...@gmail.com: Unfortunately this is not the case with ED50 UTM31N: the resulting layer has the correct CRS, but it is shifted. The points appear where they have to be, but the raster layer is shifted. We'll try with points set on google mercator. Thanks 2011/11/28 den...@dmlinton.net: Hi, Agus; You set your desired CRS in the Georeferencing properties. What I am saying is that this setting seems to be ignored and, in place of the specified CRS, some strange unknown custom CRS is substituted. By going to the layer properties for the georeferenced layer (after it has been added to your project) and resetting the CRS to the correct one, the georeferenced layer then displays properly. This is my experience anyhow - particularly using Google or OSM (both have Google Mercator CRS) maps as reference. Best regards, Dennis I was suspecting something like this too. But the question is that the CRS of the input image should be, by definition, unknown. In case the input image has a CRS, this CRS should be just ignored. Instead, the plugin actually prompts the user about the CRS of the input image. And I do not find any way to set the input CRS to unknown or just arbitrary x,y coordinates (while this is possible in Grass). Where you say: Upon resetting the CRS specified in the layer properties to the correct one, all was well do you refer to the input or to the output image? Agus 2011/11/27 Dennis M. Linton den...@dmlinton.net ** I have observed this behaviour in QGIS 1.7.2 and found, upon reviewing the layer properties of the georectified layer, that the coordinate reference system being used was NOT the one specified in the Georeferencing plugin. Rather, the CRS was some unknown custom CRS. Upon resetting the CRS specified in the layer properties to the correct one, all was well. Hope this helps. Best regards, Dennis -- Dennis M. Linton, P.Eng. Tel: +1 (613) 473-1015 Cell: +1 (705) 312-1336 Skype: thedmlinton On Sun, 2011-11-27 at 22:10 +0100, Agustin Lobo wrote: Hi! We are using the Georeferencer tool and the resulting image is shifted, please see the screenshot here:https://sites.google.com/site/filestemp2/home/error_georef.jpg?attredirects=0 We've tried polynomia of order 1 and 2 and Helmert, with very similar results. I think this is a bug, but I'm not sure we are not actually doing something wrong. Agus ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Critical problems with 1.7.2 from ubuntu binaries
How you got the error? I am using Ubuntu 10.04 lucid with 1.7.2. I don't have problems with the python and c++ plugins. Noli On 11/29/11, Agustin Lobo alobolis...@gmail.com wrote: After updating to 1.7.2 in ubuntu 10.4 LTS using the ubuntugis-unstable repo, the CRS cannot be set: Could not open CRS database /resources/srs.dbbrError(14): unable to open database file! and almost all plugins are gone (including plugin installer). Agus ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Critical problems with 1.7.2 from ubuntu binaries
Did you install it from ubuntugis-unstable or from qgis.org? When did you install it? The problem has been solved here upon reinstalation, but an student had the same problem on another machine. Perhaps the binaries have been wrong for a while on ubuntugis-unstable? Agus 2011/11/29 Noli Sicad nsi...@gmail.com: How you got the error? I am using Ubuntu 10.04 lucid with 1.7.2. I don't have problems with the python and c++ plugins. Noli On 11/29/11, Agustin Lobo alobolis...@gmail.com wrote: After updating to 1.7.2 in ubuntu 10.4 LTS using the ubuntugis-unstable repo, the CRS cannot be set: Could not open CRS database /resources/srs.dbbrError(14): unable to open database file! and almost all plugins are gone (including plugin installer). Agus ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Scale bar on degrees with project CRS on ED50 UTM31
Using 1.7.2, the scale bar is on degrees while project and layer CRS are projected. See screenshot here: https://sites.google.com/site/filestemp2/home/scalebar.jpeg?attredirects=0 Agus ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Scale bar on degrees with project CRS on ED50 UTM31
Oh look, I just had that happen on an osgeo install. -ramon. On 29/11/2011, at 14:51, Agustin Lobo alobolis...@gmail.com wrote: Using 1.7.2, the scale bar is on degrees while project and layer CRS are projected. See screenshot here: https://sites.google.com/site/filestemp2/home/scalebar.jpeg?attredirects=0 Agus ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
Another problem I notice, perhaps related to the same issue: If I first define a query on a layer, so that only a subset of a certain layer is displayed, then the "Categorized" symbology doesn't work- Click on "Classify" does nothing. If I do in reverse: first set up categorized symbology, then define the display query it works as expected. Thanks, Micha On 28/11/2011 20:19, Martin Dobias wrote: On Mon, Nov 28, 2011 at 10:37 AM, Giovanni Manghi giovanni.man...@gmail.com wrote: This is tricky: if you select "advanced - select scale field" *before* hitting "classify" then the size symbols won't be scaled. If you do the other way it will work as expected. Feel free to open a ticket for that issue. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user This mail was received via Mail-SeCure System. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
