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

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1answer
36 views

How is it possible to programmatically export current view as georeferenced image with QGis?

I found the this to export the current view as image. The following code works and was accepted as answer. c = iface.activeComposers()[0].composition() image = c.printPageAsRaster(0) ...
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0answers
15 views

pyd error install qgis 2.14

I removed qgis 2.10 so i could install qgis 2.14. But when i try to install 2.14 i get errors on python .pyd packages. Every time it is a different pyd causing the error. I had this problem with ...
5
votes
2answers
120 views

A graduated-categorized hybrid styling of features

I am trying to figure out how to do a styling of features on a mapi qgis, that is a sort of hybrid between the categorized and graduated styling. I am doing a map of road trees in a city, and each ...
1
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1answer
37 views

Qgis curved labels dont show up in print composer

I use Qgis 2.14.2. I set up labels names of a line vector and set it up as curved - looks like in this screenshot But when i want to print it in print composer it doesnt show up It only shows ...
2
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1answer
44 views

Using timeslider in QGIS to show census data per year?

I have several shapefiles with the same geographic extend (in my case: Berlin and all its administrative subareas) and statistical (census) attribute data for every subarea displayed trough a ...
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0answers
46 views

Delete CRS in QGIS

Is there a way of deleting the various CRS's that QGIS lists? We are a Local Authority in England and the only CRS we need is British National Grid, which is set as the default, as well as Lat/Long ...
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0answers
15 views

QGIS how obtain multicolour lines from polygon cell grid multicolour

In QGIS I have different lines with same colour that pass through a grid polygon cell (each cell of the grid have a colour). When a line cross a cell, it must colour with the relative cell colour. ...
2
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2answers
69 views

Slope Analysis in QGIS

I am New to QGIS, I have the Contour Information in the form of Line Features, How can I do a Slope Analysis. Is it Possbile at all ? For Reference I am attaching the Image. the lines in the ...
2
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1answer
42 views

How to render mixed geometry from one table?

I have a table in postgresql with mixed geometry, but it is not accessible in QGIS. I am running QGIS version 2.8.2. Is there any plugin to install for QGIS to render multiple geometry?
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0answers
25 views

Adding heatmap legend to print composer in QGIS

I have created a heatmap from points layer's style property. However when I add a legend to the print composer I do not get anything in the legend except the layer name, how can I add the color ramp ...
1
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1answer
24 views

QGIS crashes when opening *.qgs file created with previous version?

I've upgraded QGIS to version 2.12.x (I tried both 2.12.2 and 2.12.4 versions) on Windows 7 x86-64. QGIS crashes with the message 'minidump written to C:..." each time I try to load a .qgs file which ...
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0answers
37 views

QGIS point displacement does not work as intended

Maybe I made a mistake, but I can't get it working. I have a CSV file with species-sightings and lot of them at the same locations. So to show all species I need to use point displacement. If I choose ...
2
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0answers
30 views

QGIS 2.6.1 - Formatting pie chart

I'm making a map for school GIS course coursework. We must use cartodiagram/chart for map and I have an idea to make a map, that shows lighthouses and their light sectors as pie chart. I have managed ...
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0answers
18 views

Accessing QGIS element variables in Composer

Is there a way to access "other" composer element variables in QGIS? I can "print" a variable in a text element by inputing for example: [% @project_title %], but is there a way to use the map_scale ...
3
votes
2answers
42 views

Orientation font problem in QGIS

In some maps, the orientation font in the toolbar get messy( I work with Window 7 professional): I tried to open a new project after i restart the computer- still it as not solved the problem. I ...
0
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1answer
60 views

Problem installing QuickMapServices plugin in QGIS [closed]

I've tried to install QuickMapServices plugin, it works before without issues. But after uninstalling old QGIS version and installing 2.14.2-Essen, I'm getting an error. I tried downloading the plugin ...
1
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1answer
29 views

how to extract OSM data to as many layers as possible in DXF( or multiple DXF file) as path for illustrator use?

So i am just touching QGIS, mainly to explorer way to use map data for my animation. Here's my first try to make it clear to understand what I am aiming for: ...
1
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1answer
30 views

Exporting an image from QGIS for use in Autocad

I am using QGIS to open mrsid files from NAIP, clipping the part of the county that I need and using the "save as" option to export as a geotiff in state plane coordinates for use in Autocad. I am ...
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0answers
21 views

can not display the whole map when add spatial mssql layer in qgis 2.14

When i add geometry_columns table there do not display anything in qgis.
3
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0answers
55 views

How to integrate python-docx with QGIS

I have installed the newest QGIS and downloaded python-docx from this link python-docx . I haven't installed separately a different version of python. Is it possible to integrate this package of ...
3
votes
2answers
38 views

Patchy country polygon after converting ESRI shapefile to KML

My goal is to render the country boundary of Scotland in KML format so I can use it with Google Fusion Tables. I’ve so far managed to do this but with chunks of its surrounding islands missing, so ...
1
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1answer
25 views

Intersect in QGIS returns empty shapefile

I've seen this asked and occasionally answered on the site, but none of the solutions applied. I am attempting to intersect points (i.e. NYC Motor Vehicle Collisions) to a polygon (i.e. a shapefile of ...
3
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1answer
25 views

Add Values to New Column in Attributes Table using Python Console in QGIS

I've added a new column to my table called "STRNAME" using: path = "/Users/shapefiles/roads/" metro_roads = QgsMapLayerRegistry.instance().mapLayersByName('Metro_roads')[0] ...
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1answer
22 views

In Which Province is a Post Code (Adding Attribute from Another Layer)?

I have two polygon shapefiles. One is post codes, the other is provinces (in China). I'd like to add a "Province" field to the post code database (i.e. DBF file). This field would indicate the ...
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1answer
25 views

Creating boundary for multiple point shapefiles that overlay base polygon shapefile?

I have several point .shp files that were geocoded using OpenStreetMap. I located a base map to overlay the point files. I would like to create an artificial boundary based on an 80/20 rule for each ...
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0answers
27 views

How to automatically run some scripts for QGIS python console by defining the python macros checkbox

I'm working with QGIS 2.8 in windows 10. I've defined the python macros checkbox to QGIS start and simultaneously run a script that has the same path from my "QGIS.qgs" file. In the Project>Project ...
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1answer
34 views

export to microstation with qgis error

I want to export my SHPFile into microstation dgn using qgis. But when, I do click right on layer and save as... This message error shows "L'export du fichier vectoriel a échoué. Erreur : La création ...
2
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0answers
38 views

Open KML in QGis

I am very new to QGIS. I want to open a .kml file in QGIS (downloaded from geoportal.de). If I want to open the downloaded file directly with QGis an error appears. I read the tip to first open ...
4
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1answer
52 views

Rule-based labeling using Atlas - QGIS.2.14.1

Does anybody know how to only label features of a shapefile that are inside of another shapefile's features used as coverage in Atlas ?
3
votes
2answers
129 views

Fixed distance between two contours - Qgis 2.14.1

There is a possibility, when you select a contour line and give a fixed length of line, this line connects automatically to the next contour lines? I have two other questions on this subject but I do ...
0
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0answers
18 views

DEM to RGB-GeoTIFF (land-/waterarea colored separate)

I want to create a colored basemap out of a ETOPO dataset. Is there a way to color the land (masked by a landpolygon) and water area separate and combine them later. The result should be one GeoTIFF ...
1
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1answer
26 views

QGIS How to draw lines from two points in a CSV?

I have a largely identical query to How to draw lines from two points in a CSV?, however the solution listed isnt working for me. My original text format is PID, Start Northing, Start Easting, End ...
2
votes
1answer
62 views

“unexpected indent” in the script

I'm using a QGIS 2.8 in windows 10. I have 2 scripts that are working separately but when I write both in just one script, it doesn't work. The 1st script is to load one raster to QGIs with a defined ...
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0answers
20 views

Flattening topography while retaining structures in QGIS?

I have a set of Terrain data in both DSM and DTM form. What I am trying to do is extract the features (buildings, hedges etc...) that have been removed from the DTM, but I don't want the topography. ...
2
votes
1answer
30 views

QGIS - best fit to the sectoral terrain (SRTM 30m resolution data)

i need a help to find out the Slope of "best fit to the sectoral terrain". here is in details about the area of calculation. we have a reference point, from the reference point our sectoral area ...
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0answers
19 views

Draw a line between 2 sets of coodinates [duplicate]

Basically, I have a table of river cross sections coordinates in excel . I have x,y data for one side of the bank and another X,Y coordinate for the opposite bank. In excel I have 5 headings, the ...
3
votes
1answer
86 views

How to force QGis to remove polygon borders?

I have a GML layer representing an hexagonal grid that I would like to include in some maps. In QGis (version 2.14.2) I applied a graduated style and completely removed the polygon border: However, ...
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0answers
13 views

QGIS distance matrix projection and alternative output format [closed]

I have around 200 thousand cities around the globe and are in a point shapefile with equidistant conic projection. I use ArcGIS and QGIS but have two problems: When I use distance matrix tool, it ...
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0answers
16 views

Getting QGIS SLD From OpenStreetMap

QGIS has a pluging called OpenLayers. From that plugin, we can get a very pretty map. I have downloaded some shapefiles for the region (a city in my case) I am targetting. When I put the shape files ...
3
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0answers
33 views

Import DGN file with QGIS

I want to open my V8 dgn file with qgis without any loss of informations. Please, do you know an extension supported by QGIS to do this job.
1
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1answer
21 views

Adding actions or any other options?

I am pretty new with all GIS things and I have to prepare homework in QGIS. I have a shapefile which contains many buildings with their own grades. I want to make an automatic tool, solution, etc. to ...
1
vote
1answer
28 views

checkbox in qgis

Please, help me, maybe I do something wrong? I create form in Qt disigner for QGis table. And i made there CheckBox. Then in QGIS Properties I noted that it's a checkbox and loaded on the created ...
2
votes
0answers
23 views

Is it possible to stop an algorithm midway through processing in QGIS?

This question come about do to an annoying though infrequent issue I have been having in QGIS. On occasion, I will begin processing a tool that will take some time to run but realize midway through ...
5
votes
1answer
73 views

Keep UI Settings for a QGIS plugin

I'm writing a plugin that interacts with external software (hydrological models). One of the dialogs has a lot of entries (parameters to pass to the hydrological software). Once the user has set up ...
1
vote
1answer
13 views

TrainImagesClassifier (SVM) fails when executed from within QGIS modeler

I made a small model in QGIS that runs Second Order Image Statistics, the SVM Trainer, and Image Classification, all tools from the Orfeo provider. The problem is it fails everytime. When I run the ...
0
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0answers
20 views

Mini Dump to C when Printing

I'm aware that there have been many questions posted about mini dump issue, but I'm not particularly computer literate and some of it to be honest has gone over my head. Every time I go to print to ...
1
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1answer
35 views

Question about Using r.mapcalculator in Python console

According to the following conversation: Using r.mapcalculator in Python console? I tried: ##NoData Background=name ##RASTERLAYER_BAND=raster ##nodatabackground=output raster import processing ext ...
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0answers
17 views

Defining 3 decimals for value in layer properties of QGIS?

I'm currently working on the latest version of QGIS (windows) and I'd like to define a range of 3 decimals value when I'm editing the widget of my layer properties (column set as decimal number ...
2
votes
1answer
47 views

QGIS, how to export GeoTiff in lat long not map units?

I'm trying to export a map as raster (geo tiff with word file) from print composer. The word file is always coming with Map units because I'm using Google Satellite from OpenLayer web plugin. I tried ...
3
votes
2answers
50 views

Distance Matrix of two datasets

I have two datasets of the same adresses, one geocoded with Google, the other with Nominatim. Now I want to compare address1 of dataset1 with address1 of dataset2, then address2 of dataset2 with ...