Version 2.0 of QGIS (previously Quantum GIS)

learn more… | top users | synonyms

1
vote
3answers
471 views

Resolving Java script Alert that This page was unable to display Google Maps element?

Whenever I try to load the Google Hybrid layer on QGIS 1.8.0 and 2.0.1, I get this error: This page was unable to display a Google Maps element. Please contact the site administrator. If you are ...
2
votes
1answer
27 views

Adding a WMS layer in QGIS using python

I'm trying to write a python script to load the Environment Agency (EA) Flood Zones WMS layers into QGIS (2.14). I've provided a link to the EA's data catalogue at the bottom of this question. The ...
2
votes
0answers
13 views

QGIS Eclipse + PyDev tool autocomplete

I set up my QGIS plugin development environment in Eclipse with PyDev using the instructions. I've got the autocomplete working for qgis and qt4 objects: but I can't figure out how to get the code ...
0
votes
0answers
28 views

Improving Clip Raster workflow in QGIS?

I've tried to come up with an open-source equivalent to the following process in ArcGIS 10.3: Spatial Analyst Toolbox > Extract by Mask target input: 1" SRTM DEM in EPSG 4019 mask layer: single ...
1
vote
1answer
33 views

Geoprocessing in CRS WGS84 and UTM Zone in QGIS

Why do I can't do union or do another geoprocessing two shapefiles with different CRS in QGIS? For example, I want to do union two shapefiles, one shp with CRS WGS84 and another shp with CRS WGS84/UTM ...
2
votes
1answer
62 views

Is there any plugin to Identity in QGIS? [duplicate]

Identity is one of ESRI ArcGIS Feature that clipping feature class by another feature class then union first feature class to the result of clip process. The simple explanation is like this picture ...
2
votes
1answer
26 views

How we see all features of plugins in qgis 2.8.1?

I have installed Qgis 2.8.1 but in plugins not installed, upgradable are not display. how we add new plugin?
2
votes
1answer
57 views

Is there a way to manage spatial files in QGIS as in ArcGIS Manager?

I want to copy and paste shapefiles from one folder to another. Is there a way to do it in QGIS as in ARCGIS Manager and not from the Windows Explorer?
1
vote
0answers
69 views

Qt Designer and QGIS, using relation references

I have made my own form in Qt Designer and connected it to QGIS. One of my fields is a relation reference. But the text doesn't fit in the combo box. You can see it in the picture. I tried to ...
0
votes
0answers
27 views

Unable to export in any format with Print Composer (QGIS) [duplicate]

Well, as title states, I'm not being able to export in any format (nor image nor PDF). Just to try this function I added a map (with OpenLayer Plug in as background which loaded just fine in the Print ...
1
vote
1answer
35 views

Why changes made in QtDeisgner form not shown in QGIS plugin gui?

I have created a plugin in QGIS 2.10.1. After making some modifications in the ui file in Qt Designer and reloaded the plugin or restarted QGIS or restarted the pc these are not incorporated. I cannot ...
0
votes
0answers
29 views

Generate points layer at line intersection

I have a line layer that is actually buffer polygons converted to a line layer. I would like to generate points at all places where 3 or more lines intersect. I would settle for places where 2 or more ...
2
votes
1answer
22 views

In a polyline shapefile, how can I color a label using it's corresponding symbol color? (QGIS)

Maybe a pretty simple question. I have a polyline shapefile that I've symbolized through categories, and I wish for the labels to automatically be set to the same color as it's corresponding line ...
2
votes
1answer
33 views

Problem using processing.runandload(…)

I'm writing a QGIS plugin using PyQGIS and I have a weird problem. When executing following line of code: processing.runandload("qgis:createpointsalonglines", r"Clipped", 1, 1, 0, r"memory:nodes") ...
1
vote
0answers
25 views

How to rollback the committed changes in the Vector Layer in qgis

I selected few features in the vector layer and updated the field. But I want to rollback the changes committed to the vector layer. How can I do that in QGIS? I have used used the following coed: ...
1
vote
0answers
12 views

How to send GPX file to a GPS device [duplicate]

I'm using QGIS 2.0.1 and want to send a GPX file to a GPS device, Garmin Astro 320. When using the GPS Tool in QGIS and click the OK button I get the message Can not start GPSBabel! What's ...
3
votes
1answer
44 views

Which CRS would be the most appropriate to georeference a map of Egypt?

I'm trying to georeference a geological map of Egypt from 1981, but I don't know which CRS to chose, either the transformation type nor the resampling method... And once the georeferencing of the map ...
1
vote
1answer
30 views

QGIS: How do I edit line and fill setting when using Add Feature?

Newbie here. I see that the creation of new shape layers must be possible, but I cannot work out how to do so without QGIS only using the default ugly green fill polygon setting. Is there a way to ...
1
vote
0answers
32 views

Setting icon for the submenu items in QGIS

I had added a new menu item as well as submenu item using the below code. I had succeeded in setting icon for all the submenus(HeatMapAnalysis,Buffer and Intersect.) But i cant able to set icon for ...
2
votes
0answers
27 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 ...
0
votes
1answer
17 views

QGIS crashes when using heatmap plugin

I am using QGIS 2.14.1 in Ubuntu 15.04 and when i click Raster -> HeatMap -> HeatMap. My QGIS crashes and closes automatically even there is a point layer loaded in the canvas(HeatMap Plugin expects a ...
1
vote
0answers
28 views

Layer style is not rendered properly using PyQGIS

I'm trying to render a layer with the given .qml style into .png image using a standalone PyQGIS application. The issue is that not all the layers of the symbology are rendered, e.g. a polygon with ...
3
votes
1answer
19 views

Point feature changes over time?

QGIS strategy for denoting point feature changes over time? My project file has a shape file layer (point symbols) geolocating 50 historic street name mosaics embedded in concrete sidewalks ...
8
votes
1answer
195 views

Setting a default value in a QGIS field

I would like to add in a layer's field a default value. I mean, every time a new feature is created, that field would be automatically filled with the default value. In my case the default value ...
3
votes
1answer
43 views

Empty a layer for each QGIS project

I have a layer with a customized form. Dropdowns, checkboxes, etc. in a QGIS project which is kind of a template. This QGIS project will be copied and pasted every time a new study has to be done (...
2
votes
2answers
55 views

Open local Raster Tiles in QGIS

I have a local directory with a Raster Tile, downloaded with SAS Planet (I know about the license issues, its just a personal test). In Global Mapper I can load it directly from the directory using: ...
5
votes
1answer
107 views

How does one style the border to match the fill in QGIS?

In the past I have just manually matched the color of the border to the color of the fill, but this can be time consuming. I am wondering, is there any way to have the program automatically match ...
2
votes
0answers
64 views

Problem using processing.runandload() [closed]

I'm writing a QGIS plugin using PyQGIS and I have a weird problem. When executing following line of code: processing.runandload("qgis:createpointsalonglines", r"Clipped", 1, 1, 0, r"memory:nodes") ...
1
vote
0answers
31 views

QGIS 2.14 - Saving Lat/Long csv file to ESRI Shapefile Error [duplicate]

I have a csv file that I bring into QGIS 2.14 with standard lat and long formatting. The file displays fine but when I try to save it as an ESRI shapefile I get an error: Export to vector file failed....
4
votes
3answers
67 views

Convert .csv with polygon geometry to .shp QGIS

Working on a Mac in QGI 2.12, I have a csv file with polygon geometry coordinates that I would like to save to a shapefile. It displays fine as a csv. However, when I try to use "save as," I get the ...
1
vote
0answers
82 views

Getting Started With QGIS? [duplicate]

I am a fairly strong user of ArcGIS, having started with version 8 long ago. But I'm looking for an inexpensive alternative right now for a client, and I want to investigate QGIS as a possible ...
0
votes
1answer
20 views

Getting the DB name of the spatialite table loaded inside QGIS using PyQGIS

I have a table loaded in QGIS from spatialite DB. When i see the layer properties it is dbname='/home/farook/Spatialite/Cities.sqlite' table="cities" sql=. Now i want the dbname alone (i.e) the entire ...
4
votes
1answer
56 views

Connecting to a spatialite DB, querying, writing the queried result to a spatialite table using PyQGIS

I am developing a plugin that connects to a spatialite DB , do some queries and outputs the results to a spatialite table. I had tried with the below code to connect to the DB and print the queried ...
0
votes
0answers
41 views

Debugging QGIS plugins using Eclipse IDE in Ubuntu?

I am using QGIS 2.14.1 in Ubuntu 15.04. I am developing QGIS plugin using Eclipse 3.8 IDE installed. I would like to configure pyqgis and debug the code using eclipse. Is there any documentation for ...
1
vote
0answers
28 views

Error while creating plugin using plugin builder in Ubuntu 15.04

I am building a QGIS plugin using qgis plugin builder 2.10.1. I am using Ubuntu 15.04. I had selected (/usr/share/qgis/python/plugins) path for the plugin to store in plugin builder, Its raising an ...
1
vote
0answers
25 views

pyqgis change or update attribute data with real-time data or Timer update,Memory has been growing

I update my shapefile attribute data by QTimer ,and labling it, keep the lable visiable,change attribute by 1 minute, but the Memory has been growing 1 layers =self.iface.legendInterface()....
1
vote
0answers
46 views

How to clip many lines with polygon?

I have two vector layers: "parallel": a vector layer containing a lot of lines, they're all parallel but that shouldnt matter "polygon": a vector layer with just 1 polygon I want to create a new ...
5
votes
1answer
107 views

Following tests fails while trying to build QGIS from source

I have been trying to compile QGIS for a long time now. What I did is: Download Visual Studio 2010, Windows 7 SDK, cygwin, osgeow4 (I followed the instruction lines 380 - 447) Additionally I have ...
2
votes
0answers
151 views

Plugins incorrectly being disabled due to “causing QGIS crash”

I have QGIS 2.14.0 installed on my machine (W7 x64, AMD FX-8150 3.6GHz, 8GB RAM, SSD) and I'm having issues with plugins not opening by default when I open QGIS. The message I get (for each plugin ...
0
votes
0answers
14 views

QGIS and mysql administration - How to update a multiple select values

I have a mysql DB with spatial information. I would like to admin this DB from QGIS. I have the following situation: TABLE_A id | title | point 1 | item1 | point(x1,y1) 2 | ...
1
vote
0answers
34 views

QGIS 2.x - no repository and WMS access

Suddenly in my QGIS 2.x installations the official QGIS repository is unavailable from my computer. Also I can't load any WMS (from OpenLayers plugin etc.). It worked before and I don't know what I ...
5
votes
1answer
71 views

Load WMS with PyQGIS

I have installed QGIS server on Ubuntu 14.04 which serves WMS. Connection uses https and basic auth. URL is https://my.awesome.url:8090/cgi-bin/project1/qgis_mapserv.fcgi I can connect with QGIS and ...
0
votes
0answers
22 views

Fetching the table data from SQlite db in QGIS throws an error

I have exam.sqlite db and it contains 4 tables as t1,t2,t3,t4. from pyspatialite import dbapi2 as db sqlite_file = r'D:\Folder\exam.sqlite' conn = db.connect(sqlite_file) ...
2
votes
0answers
89 views

How to rotate symbols in QGIS

I have a vector symbol that I am using rule based style with. In the Rule properties tab I click on the SVG marker and change the "rotation" which is a field I have made to handle to the rotation ...
3
votes
1answer
61 views

QGIS's Select Features tools only work occasionally

I'm hoping someone can help me work out whether there's something I'm missing here or whether QGIS's Select Features tools are just really buggy. I have a variety of polygon layers from shapefiles ...
4
votes
1answer
121 views

How to split a polygon into multiples sections in QGIS?

I am working on QGIS latest version 2.12.3. I am digitizing a polygon. It represents a riparian buffer of a river. The polygon made a continuous « loop » with a widht of 50 meters. I want to split my ...
2
votes
0answers
26 views

QGIS 2.12 Edit rendering styles for outputs not listing all outputs

I have built a model in QGIS 2.12 and have been using the Edit rendering styles for outputs to set the styles for the models output data. But I have come across an issue. When I am configuring a ...
2
votes
1answer
67 views

Get the same coordinates for points after downloading a .osm file

I downloaded a .kml file that contains bike stations which I know the coordinates (latitude and longitude). So I got a layer that contains points corresponding to the stations. Then I downloaded the ...
4
votes
0answers
73 views

Postgis sequence in QGIS not working

I have a Multipolygon-Layer stored in a Postgis-database. The primary key field 'gid' is SERIAL. When trying to add a new polygon in QGis (LYON 2.12.1 on OSX El Capitan), the attributes form shows me: ...
1
vote
0answers
30 views

Colliding labels for point features in QGIS

I have a layer (point features) containing various points of interest (POIs), some of them have the exact same location. I would like to map these POIs and add a label showing their names. However, ...