QGIS is a user-friendly, cross-platform GIS application licensed under the GNU General Public License.

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48 views

Do I have problem with compare layout QGIS vs. ArcGIS? [closed]

I compare two layouts with same information in Arcgis and Qgis. When I did it, I realize difference between them. Notice that, we kept same datum for layers, same scale and don't project it, but ...
4
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2answers
57 views

How to insert a statement (e.g. copyright) which remains visible in mapping window?

I have a QGIS workspace that I need to apply a copyright statement to, so we can show data to clients without breaching the terms of our data suppliers. So far I've attached a label to a point in the ...
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0answers
19 views

Add feature symbology in pyQgis

While adding a polygon feature in QGIS 2.2.0-Valmiera, the representation symbology of that particular feature(which is in-progress) appears to be "filled" until the completion(rightclick) of ...
1
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0answers
15 views

How to show combine results or export them with PyQgis

I'm quite new in Pyqgis and i think Pyqgis could make my work easier. I first want to try with a simple code, here is what i want: merge some features and then export them in a shape files. For the ...
1
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0answers
14 views

Result names in modeler processing tools

the results of the modeler (processing tools) do not have the defined names. Is that an issue? For instance: When I'm using "clip grid with polygon" and I define the result name "clip". I expect the ...
1
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1answer
36 views

Correct installation of postgresql and postgis

Goodmorning everybody! I'm new in this forum and I hope you would help me in solving my problem. I'm practicing the use of Qgis and i need to setup postgresql and postgis on my mac yosemite 10.10. ...
2
votes
1answer
39 views

Merging shape-files freezes

I am trying to merge shape-files in QGIS it stops each time at 19%. The program doesn't show me any error messages so I don't know what is going on. Both shapefiles are 1.9 GB. Also I noticed that ...
2
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1answer
20 views

In QGIS, how do I automatically wrap my labels to fit in print composer window?

I am creating a set of hiking maps for the Continental Divide Trail. The trail is nearly 3000 miles, so I have about 200 individual maps and over 1000 information labels. I have a shapefile of ...
1
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1answer
41 views

QGIS install on Ubuntu 14.04 fails

Following the QGIS installation guide I have tried both UbuntuGIS and QGIS stable, but both fail with the error message: The following packages have unmet dependencies: python-qgis : Depends: ...
1
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0answers
16 views

Models -> [Example Models] -> Contour lines from points: on MAC

I'm running QGIS2.6 on a Mac and can't seem to locate the "Contour Lines from Points" Example Model. Any help would be appreciated. SAGA is installed.
8
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2answers
117 views

Calculating all distances from single points to multiple polygons

I have two layers: a point layer defining properties (95 objects), and a polygon layer defining plots of land associated with the properties (211 objects). Each point relates to one or more polygons. ...
2
votes
1answer
41 views

Install QGIS on Ubuntu with GDAL built from source?

I am trying to install QGIS on Ubuntu 14.04. While I can easily install it via the package manager or apt-get, I find that QGIS, when installed, does not have Python support as expected. The symptoms ...
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0answers
8 views

Add Image attribute in QGIS [duplicate]

Anyone knows how to add an image attribute in qgis, so that when I click on the shape file for information it shows me the picture along with the attribute-table?
1
vote
3answers
57 views

Is there a way to snap 2 lines together from 2 shapefiles?

I am currently having 2 shapefiles of a roadnetwork. One of them has the best network (lines intersecting correctly etc.) and the other has some attribute info I want. I have no similar attributes to ...
1
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0answers
34 views

Importing csv file in QGIS including names and description [on hold]

I'm just getting to learn QGIS. I want to make a map (Google maps) where I can map all our customers from our database. Including names and even better: description, address, telephone, etc. All this ...
3
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1answer
26 views

How to save shape file as type 1 point file in Qgis?

QGIS saves point shapefiles as type 8 - Multipoint as default. I need QGIS to save as type-1 Point file. How?
1
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1answer
36 views

How to delete pinned points?

I'm working with QGIS Brighton. My project was started with an older version of the software, but I don't think that makes a difference. I have six points that were generated by calculating the ...
0
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1answer
30 views

QGIS plugin select and edit feature attribute [closed]

I'm looking for a QGIS plugin that can change attributes (attribute table) of features on a vector layer by selecting them with the mouse. I found this plugin "SelectTools": ...
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0answers
24 views

how to send a QGis project? [duplicate]

I am working on a project with around 70 individual shapefile layers saved in 10 different folders. I use a qgis project file to start up and group the shapefiles. I now would like to send the project ...
3
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1answer
62 views

clip geometries in postgis table if they are inside a polygon

I have polygons defined in KML files just like this one, which I can easily parse. Example: <Polygon><outerBoundaryIs><LinearRing><coordinates> -91.463940,40.372660,0 ...
2
votes
1answer
46 views

How to compute orthodromic distance in QGIS?

I have opened a geotiff file with QGIS. The CRS of this file is EPSG:3857 (web mercator). When I use the distance tool in the menu, the computed distance is towards web mercator coordinates and not ...
1
vote
1answer
47 views

How to create selective output from a QGIS layer, using QGIS2leaf?

I want to create a web map on which only a selection of data from a layer is displayed. To the best of my knowledge the tool seems to output the full layer. In Mapinfo I'd run a query to create a ...
1
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2answers
75 views

Free GIS software for mapping drain lines on a golf course

I work on a golf course that is built on old farm land. We have old clay drains from the turn of the 20th century and lots of additional drains that have been added in the meantime years. No maps ...
1
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0answers
22 views

When trying to save a vector in QGIS a blank dropdown window appears

I am learning and using QGIS Brighton and have hit a obstacle. Everything has been going fine until I started using the experimental generalizer to smooth the contours that I had extracted from some ...
4
votes
1answer
91 views

Can I find location entering coordinates?

I am new to QGIS and have a n00b question: can I find a location on the map I'm working with by entering its coordinates? If yes, where do I enter said coordinates?
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2answers
61 views

How do I rename Shapefiles in QGIS?

I have a huge list of layers in a project that are named in a foreign language. i I want to translate and add the English title to the name. When I right click on a layer and choose properties- ...
2
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0answers
37 views

What causes OTB pansharpening ERROR Inputs do not occupy the same physical space?

When I try to use the OTB pansharpening tool an error comes up and I don not really know what the problem is. I have a RGB and a Band8 map (both from Landsat8) which I want to use for the tool. All ...
3
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0answers
32 views

Statistically comparing two sets of coordinates [closed]

I have been given a task to compare two sets of points, one set being a set of predetermined points, on the other being a set of actual points that were taken in the field. I have to compare these ...
1
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2answers
40 views

basic problem using division in field calculator

This is a very basic question, but I can't figure out what's going on. I've got election results I'd like to simply display as percentages rather than vote totals, which should be as simple as ...
1
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1answer
34 views

How to get the Parameters for a Lambert conformal conic projection CRS in QGIS 2.6

I am currently having some trouble adding the CRS to a vector file that I want to re project to WGS84/UTM. The shapefile is using Lambert Conformal Conic Projection; ITRF92 horizontal datum and GRS ...
0
votes
1answer
22 views

Adding geometry to QgsVectorLayer with lon/lat coordinates

I'm creating a custom Qt app that uses pyqgis for showing data on maps. I have successfully created a map canvas that shows a world map from a WMS server. Now I'd like to overlay data on this map. ...
2
votes
1answer
38 views

Qgis how to combine a geotif with a country border shape file?

I have 2 files. A geotif with different values and 1 shape file with country borders of this area. Can I generate with this 2 files an image with the country borders and the data from the geotif? ...
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0answers
33 views

IntraMaps Roam - does not update database

Has anyone had any experience with this software? The QGIS project I created for use with this software has a postgis database sync'd to offline mode (i.e. stored in sqlite on my hard drive). I do my ...
5
votes
1answer
111 views

Black edges on overlapped raster images in QGIS

I'm beginner with QGIS and I have task currently to make some GIS map/data. I downloaded 3 satellite images from Landsat by USGS (multispectral, georeferenced) and I did overlapping of images using ...
2
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0answers
26 views

how to extend polyline to the intersection point?

I have a polyline shape file, would like to extend the polyline to the intersection point of the nearby polyline and snap using python in Qgis. Thanks
1
vote
1answer
39 views

QGIS 2.4 print composer map extent does not sync with main window

I'm using QGIS 2.4 and got some issues with the print composer. First thing is that the "update preview" button reloads the map, but does not change the view when I move to another place in the main ...
2
votes
1answer
53 views

How to auto-generate multiple maps with different features in QGIS?

Anyone can explain me how can i auto-generate multiple maps with different variablies using Atlas tool in QGIS? So i have only 1 layer which consists of 10+ features, and i want select some of that ...
2
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0answers
57 views

”No module named ogr” when installing QGIS plugins

In QGIS 2.6.1, when I try to install the FlowMapper and QGIS Cloud plugins, I get an error - "The plugin is broken. Python said: no module named ogr" - giving me the only option of removing them. ...
3
votes
2answers
101 views

How to output coordinates from a shapefile to a GMT or CSV file in QGIS?

I want to get the coordinates for a line shapefile as csv or gmt files. I click create "new layer" - "new shapefile layer" - I check the "line" box and then "OK". Then I make my shapefile. When I ...
2
votes
0answers
18 views

How to select points as geomtry in QGIS when both multipolygons and points are stated within the wfs-server?

I'm trying to show data from the following server in QGIS: h ttp://geodata.nationaalgeoregister.nl/bag/wfs? I made a filter on the data I would like to appear in my map. This is how I stated the ...
2
votes
0answers
30 views

QGIS polygonize GDAL DLL load failed

I'm using QGIS 2.6.1 and i've been having problems using the polygonize function. I keep getting a "DLL load failed" import error. I've searched older threads which unfortunately weren't able to ...
2
votes
1answer
54 views

display only one point for each ID

I'm working with a point layer (many many features) that has some attributes, like the elevation of each point. I created a polygon grid (5 km x 5 km each cell) with an unique ID and I made an ...
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0answers
32 views

Why must I write `geometryType() == 3` for point and polygon shapefiles?

I am asking this question based on the result I received from this earlier post. The following script only works if I set geometryType() == 3 as that is what is being printed out in the Python console ...
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0answers
13 views

QGIS rasterize a styled layer

I disabled information from a vector layer with a styledefinition. Is it possible to rasterize only the styled information in QGIS?
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0answers
41 views

MMQGIS Plugin not working with QGIS 2.6.1? (Resolved) [closed]

QGIS 2.6.1 on Windows Have done a bit of research on this and I think it may be caused by the recent update in version to QGIS 2.6 (it worked in 2.4). I am trying to perform an attribute join from csv ...
3
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0answers
42 views

Has anyone used QGIS as an alternative to Terrasync or ArcGIS mobile?

We are planning to purchase a rugged field computer (Trimble, Juniper, Ashtec etc.) for accurately surveying habitats and work sites in remote locations. In the past we have found that the software ...
3
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0answers
141 views

Problem operating LAStools in QGIS 2.6.1

I have a problem with LAStools in QGIS 2.6.1. I have never used QGIS to process LiDAR data before. I downloaded LAStools yesterday from the rapidlasso GmbH website. I unzipped the “lastools.zip” ...
1
vote
1answer
83 views

How to split lines with PostGIS and view the result in QGIS?

I have two tables, one contains lines (test_line) and the other contains the points at the vertices of the lines (test_line_vertex). I want to split the line into individual segments based on the ...
0
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0answers
30 views

Upload SHP to PostgreSQL via QGIS

There was the error when I try to upload the SHP to the PostGRESQL. The feature is the line type. The error was: ERROR: Geometry type (LineString) does not match column type (MultiLineString) Do ...
2
votes
1answer
33 views

QGIS - Save not working after copy-paste between layers

I am trying to copy points from one layer to another in QGIS, both shapefiles, both with the same schema, both point files, both with the same Coordinate Reference System. The shapefile was originally ...