Software plugins that add functionality to the QGIS package
2
votes
2answers
84 views
Cannot add Plugins from Python: “Plugin is Broken”
I'm using the latest version of QGIS on a Windows 7 (32 bits), and when I try to add a plugin from the option "Fetch Python Plugins", it simply cancels the installation and I can see the following ...
1
vote
0answers
46 views
Error reading repository: QGIS Official Repository HTTP request failed
I can't seem to access the plugin repository.
Is this an issue with my system or is there something going on at the server end?!
I get the following error as wells sometimes a window saying: "Error ...
2
votes
1answer
166 views
Is there an itemSelectionChanged Signal in Attribute Table?
The QgsVectorLayer class emits a selectionChanged() signal . If a QGIS user for example selects a record in the Attribute Table of a Vector Layer - a selectionChanged() signal is emitted an can be ...
3
votes
1answer
245 views
Which parameter values should I use with QGIS Heatmap plugin?
I've read all the posts and docs about the heatmap plugin but can't seem to get it to work.
The map is the size of the United States and has a little over 2000 points. I've tried small radi (1 ...
3
votes
1answer
149 views
What is status of OpenSceneGraph (OSG) plugin for QGIS? [closed]
Does anyone know if the OSG plugin for QGIS is working?
If so does anyone knows what the future plans is for OSG plugin in QGIS?
I am using QGIS version 1.8.0-Lisboa.
I keep getting the following ...
6
votes
1answer
57 views
How to get info from selected object?
I am new to the Quantum Plugin development and wonder if there is more information about the following.
I have added a shape file and am (off course) able to select a point from this shape file. In ...
2
votes
1answer
247 views
How to load a postgres view using pyQgis?
Under Qgis 1.8 on Windows 7 I have this problem with my pyArchInit plugin: I need to load on the map canvas my geometries from a postgis layer. Till the 1.7.4 version I use the method explained on the ...
4
votes
2answers
441 views
Generate random points in selected areas for
I think my question is answered in different posts but I can't really make sense of them.
Background: We are designing a survey of a sample population of farmers to identify the seeds they use. I ...
1
vote
1answer
89 views
Is there a straight way to copy or clone a QgsVectorLayer Object?
Is there a straight way to clone or "deepcopy" a QgsVectorLayer Object with python? Unfortunately the python module "copy" is not successfull with that.
Thanks in advance!
nikolaus
3
votes
1answer
158 views
Where is the Road Graph panel?
I am trying to use the road graph plugin within qgis 1.8 (running under windows 7 64 bit). when I click vector-> road graph -> settings I get the settings-panel:
But, I dont know how to enable the ...
0
votes
0answers
33 views
QGIS Plugin delete QGSVertex from map canvas
i'm developing a qgis plugin and i need to add a function to delete previous drawn vertexes on map canvas.
On my dialog class, i can draw vertexes and when i draw one i'm also adding it to a list, so ...
1
vote
1answer
137 views
QGIS Profile from Line tool requiring shapely.wkd?
I am trying to install the Profile from Line tool for QGIS, and the system informed me I need shapely.wkd. A search on the QGIS site for shapely takes me to the Contour Plugin...can anyone help me out ...
2
votes
1answer
204 views
QGIS GDALtools plugin problem
I am trying to use the GDAL merge tool and receive the following error message:
The process failed to start. Either the invoked program is missing, or
you may have insufficient permissions to ...
2
votes
0answers
50 views
Is there a way to distinguish between digitized and pasted features?
Is there a way to tell if an added feature in QGIS is in fact a newly digitized one or a pasted feature?
I think QGIS is treating both cases in the same way, emitting the same signal:
...
4
votes
2answers
108 views
What is the fastest way to iterate through a list of features?
I have written a QGIS plugin and it iterates through all features in a layer using provider.select() and compares geometry. The problem, the plugin is very slow. If there are 114 features in a ...
4
votes
1answer
62 views
Is it possible show the feature attributes dialog when I add a feature in code?
I want to know if it is possible to make the feature attributes dialog in Qgis show up when I add a feature by code using:
QgsVectorLayer::addFeature( tFeature )
This is available when I add ...
1
vote
0answers
263 views
QGis CadTools CAD Console
I need help with the Qgis CadTools CAD Console commands.
According to these help files there are six commands. I just can't get them to work.
Can someone help me?
Thanks
2
votes
0answers
126 views
Postgresql Query Plugins Not Returning Results in QGIS
I'm using the Fishnet function as described here to create a grid.
If I use the following SQL to call the function to position a grid where I want it (I'm using NZGD2000 SRID = 2193) the query ...
3
votes
1answer
122 views
How to get raster layer pixels contained in a shape defined in a vector layer
I am new in QGis python plugins dev and I have a "maybe stupid" question (in the title :-) ).
I try to retrieve pixels (from a raster layer) which are "contained" in a polygon defined in a vector ...
2
votes
1answer
87 views
Qspatialite plugin problems with queries using inner join
I'm trying to create a layer in QGIS from a sqlite database using a query from 2 tables: one has spatial data and the other doesn't.
When I build the query using Qspatialite using the 'Advance SQL ...
3
votes
2answers
650 views
How to reproject a vector layer in QGIS?
I have some shape file which is in UTM. I wanted them to convert to Decimal Degreesin QGIS.
Hope I can get some better response..
Thanks.
0
votes
0answers
61 views
How to debug problems with Terrain profile plugin?
I am trying to use the terrian profile plugin to create a profile of a lake but at the moment i am just trying to get it to work with a DEM I have.
However I am only getting outputs that make no ...
12
votes
2answers
1k views
Visual Impact Assessment in QGIS or GRASS
Is it possible using QGIS or GRASS to perform a Zone of Visual Impact assessment? E.g. where can a 100m high structure be seen at a viewing height of 1.8m within 30km, taking into account elevation ...
2
votes
0answers
36 views
QGis, add dialog and classes to plugin
what are the steps to add files that represent a uidialog(draw with QTDesigner), and add the necessary python class files, using the default makefile provided with qgis plugin builder?
thanks,
1
vote
0answers
36 views
How to find a feature on map by its field data
I'm using QGIS 1.8.0 & got much help to find a Featuer using 'Quick Finder' plugin.
Is it possible to locate a Feature (using a similar plugin like'Quick Finder'), on map using its attribute data ...
2
votes
2answers
75 views
Invalid Username When Developing a QGIS Plugin on Mac
On a fresh Mac OSX 10.8 install, I've installed Quantum GIS from Kingchaos binaries and it's running fine. I'm trying to develop a plugin for QGIS using Plugin Builder. The skel that Plugin Builder ...
0
votes
0answers
34 views
Plugin “QSpatialLite”
I often have the problem that I can’t install the plugin "QSpatialLite" or after an update it simply does’nt work ... Does anyone have an idea how I bring it to work or alternatively someone knows a ...
3
votes
1answer
154 views
How to use QGIS Photo import plugin?
I have a lot of Photos with lat, long, and altitude information.
When I start the import, I get an error message.
Do I need to prepare a blank point layer before importing?
Is there another python ...
3
votes
1answer
166 views
How to connect a PyQGIS plugin with Postgres?
I have some questions for you:
I created a python-plugin in QGIS,
then I created a Qt gui fom my plugin
and at last I created a Postgres DB
now I need to make a connection between Qt-gui and ...
1
vote
1answer
99 views
QGIS python plugin, segmentation fault, what can I do?
I'm trying to write a python plugin to create an input file for an urban climate model out of three shape files. Unfortunatelly QGIS closes when I try to load the plugin. When I start QGIS from the ...
1
vote
0answers
128 views
Qgis Plugin development with postgres data
can someone help me with initial developing on qgis plugin that displays postgres data table on a QTTableView or QTTableWidget?
So far:
I can connect to database using psycopg2 or using ...
2
votes
1answer
455 views
What's the proper format for WKT linestrings when importing into QGIS?
I'm trying to run the following test CSV through the Delimited Text plugin as WKT data:
oid,Line
1,LINESTRING((45.554194 -122.686101, 45.433001 -122.762632))
2,LINESTRING((45.432505 -122.598327, ...
0
votes
1answer
194 views
Polygonizer plugin halts in Windows
I've had some success and some problems using the Polygonizer plugin in the past. I'm using Polygonizer 2.1 in QGIS 1.8 on Windows 7. I'm aware there are sometimes problems using Polygonizer in ...
1
vote
1answer
125 views
Is there a way of viewing a photo has a point tag from Photo2shape in QGIS?
Is there a way to view images (photos) that have location point from Photo2shape by clicking on the point in QGIS?
1
vote
1answer
416 views
How to save a vector layer from QGIS to Sql Server 2008 or 2012?
using QGIS, i've loaded up some administrative boundary data of New Zealand. I wish to now import this vector data from QGIS into my Sql Server 2012.
Is there any way to do this with QGIS ...
2
votes
1answer
243 views
How to port QGIS C++ plugins to other QGIS installations?
I developed a C++ plugin for QGIS using VC++ express 2008 and a QGIS dev release (1.9.90 alpha), my plugin works fine on this release and now I want to port it to other QGIS installations, so I copied ...
4
votes
1answer
172 views
How to Create a raster layer from a numpy array using pyqgis?
I am working on a plugin for Qgis to calculate spatial Kernel density maps. I have all the calculations working, all I am missing is a way to turn a Numpy Array, with density values into a multiband ...
2
votes
1answer
749 views
Problems with Google layers plugins
I currently use Quantum GIS 1.7.4 at work and I have trouble to open Google layers extension. In fact, when I start QGIS 1.7.4 the following message appears and I cannot use Google layers extension. ...
2
votes
0answers
193 views
How to access mysql data from python built-in console?
I'm writing a QGIS Plugin, and somewhere I want to present data from a MySQL database. It's simple data(strings,etc), not Geospatial, or vector data. I'm familiar with querying databases from python ...
4
votes
1answer
568 views
Plugins are not installed in qgis 1.8.0 Lisboa
I am trying to install plugins in qgis1.8.0 Lisboa but error message is appear as follows,
Failed to unzip the plugin package. Probably it's broken or missing
from the repository. You may also ...
2
votes
1answer
908 views
How to install fTools and Table manager
I've just make clean install of Qgis Lisboa under Ubuntu Precise. Latest Qgis version under Windows XP is very unstable (crashes every few minuter while editing shp file).
After new installation ...
2
votes
1answer
383 views
QGIS: How to load feature (.qml) styles from python? [duplicate]
Possible Duplicate:
How to style a layer from console?
I'm trying to set the styles for a vector layer by loading the .qml file in the python console. The qml-style file contains all ...
1
vote
0answers
41 views
How to call a method when self.iface.actionSelectRectangle().trigger() is released?
In my QGIS python plugin I use "self.iface.actionSelectRectangle().trigger()" to select features. I also have a button which changes the attributes of the selected features.
Is there a way instead ...
2
votes
1answer
367 views
How to enable GRASS plugin in QGIS 1.8.0 (Linux Mint 13 - 64 bit)?
Every time I enable GRASS plugin in QGIS (Plugins -> Manage Plugins -> GRASS), I got a message: Exception - G_getenv(): Variable GISDBASE not set.
I googled and found some information here but don't ...
2
votes
1answer
207 views
Are features of new labelling tool available to control via Python API?
I am writing a plugin using Python and currently using methods that set the label similar to those seen under Layer Properties. Some of the features under the new labelling engine available on the ...
1
vote
1answer
94 views
It is possible to add A* to the pgrouting plug-in?
I am using pgrouting layer plug-in as described in this post:
http://underdark.wordpress.com/2011/12/18/osm2po-part-2-pgrouting-on-osm-the-easy-way/
I am now able to calculate the shortest path using ...
0
votes
0answers
29 views
How to apply a symbology stored in a qml file? [duplicate]
Possible Duplicate:
How to style a layer from console?
I'm writing a plugin for QGIS and I want to apply a symbology (rules) stored in a QML file.
And I don't know how to do that :-/
...
0
votes
0answers
170 views
Python error when using Measuring Vegetation plugin
I am trying to use the Measuring Vegetation plugin and I am getting this error from Python:
Traceback (most recent call last):
File "C:/Users/NUR/.qgis//python/plugins\mv_plugin\mv_plugin.py", line ...
0
votes
0answers
78 views
How can i apply stretch to MinMax to the channels of image using GDAL
in Qgis i set Min/Max values of rasterband, to apply the chnage to the image channels i developpe this code in c++ but no thing has changed in image:
GDALDataset *ptRasterDataSet;
ptRasterDataSet = ( ...
1
vote
3answers
401 views
Qgis: How to display special characters German “ÄÜÖß” in a Map?
I have a shape file with names for Regions. These don't seem to contain special characters but ugly hyroglyphes. What can I do do display them correctly. If I import the shape as UTF-8 it doesn't ...
