Spatial data processing framework that brings advanced analysis capabilities to QGIS.

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112 views

Problem executing Mean Shift Segmentation

I have a problem executing the Mean Shift Segmentation in QGIS with Orfeo Toolbox. I put all the parameter to execute and then, nearly 5s after appear the message that SEXTANTE could not open the ...
0
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1answer
94 views

Sextante modeler feature selection

i am trying to select grids (polygon geometry) that intersected with building layer. i can do it by using "select by location" tool. and then i generate centroids from the selected grids. there is no ...
3
votes
1answer
972 views

Installing SAGA GIS 2.1

I am using QGIS 1.9 master with Ubuntu 13.04. I tried to use the SAGA hydrology tools in sextante today and it said they did not appeared to be installed. I checked and sure enough SAGA was indeed ...
0
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1answer
320 views

Calculating longest flow path and avg. slopes for catchments with qgis?

I am a hydrologist and their are 2 important pieces of information I need for modeling. I need to know the longest flow path for each sub catchment in my area of interest and I need to know the ...
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0answers
13 views

None of the Sextante tools will work when I click on them?

The title states it all. It was fine a couple of weeks ago and now it has packed in. I have tried uninstalling and re-installing all to no avail.
3
votes
2answers
710 views

How to use SAGA Kriging in Sextante for QGIS?

Hello, I tried to use SAGA (Ordinary Kriging) via SEXTANTE in QGis. The Sextante log tells me the following problem. Does anyone have a solution for my problem? By the way I'm usually a SAGA user but ...
1
vote
1answer
60 views

Iterating over selected features in QGIS Processing

I used to be able to iterate over selected features using the following script in v2.0. import processing features = processing.getfeatures(layer) for feature in features: #Do whatever you need ...
1
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0answers
43 views

Is there any issue using R scripts with sextante processing framework?

I want to use R scripts from the module Sextante treatment QGIS , but I have many difficulties to configure the module in Sextante . Following the procedure described in the official documentation of ...
1
vote
1answer
107 views

models from QGIS 2.0.2 to Python scripts?

I want to automate some tools for QGIS 2.0.2 using Python. Previously I have used ArcMap for automating tools and now i want to use QGIS. In ArcMap I used the ModelBuilder, and more specifically the ...
0
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1answer
64 views

Finding AniMove in Qgis 2.x

I've just upgraded to Valmiera in QGis, the only way to do spatial analyses appears to be with the experimental AniMove plugin (?) which is not appearing in my GUI. Can anyone tell me where to find ...
1
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3answers
124 views

How to access shapefile table in QGIS Modeler R scripts?

I need to develop .rsx scripts for QGIS 2.0.1 Modeler to do statistical elaborations on data tables of loaded vector layers. In this case I am not interested in accessing shapefile geometries, I'd ...
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0answers
84 views

Adding additional Grass modules to QGIS Processing toolbox

I am very happily using the Processing toolbox (nee Sextante) within QGIS 2.3 but there are a number of Grass modules I use missing which I'l like to add. I followed the guide at: ...
1
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1answer
117 views

Sextante plugin

I'm looking for the sextant plug-in which is supposed to be showing in Plugin Manager under Manage and Install plugins. I currently have 30 plugins installed and enabled in QGIS 2.0 and 121 more ...
0
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1answer
471 views

How to install OTB/Sextante plugin on QGis 2.0 (OSX)

I remember the Sextante plugin used to be available for my previous version of QGis. When I got a new computer however, I downloaded QGis again and got 2.0. Searching for "Sextante" or "OTB" yields no ...
2
votes
1answer
720 views

Is it possible to create and run custom R scripts in QGIS 2.0?

I am new to QGIS and most of the tutorials I have found are for 1.x and the overhaul has me confused. I would like to create R scripts and run them in QGIS. I have read here that it's possible using ...
1
vote
1answer
260 views

QGIS Sextante Python UnicodeEncodeError

I have some issues with Quantum Gis 1.8. When I try to use shapes to grid (sextante-saga tool) I get the following error (comes up when I try to define the new grid file name): Fehler bei der ...
2
votes
2answers
762 views

saga & grass configuration in sextante (ubuntu)

I have some trouble in running saga and grass algorithms in sextante. When I double click it appears a pop-up saying: Missing dependency.This algorithm cannot be run :-( This algorithm requires SAGA ...
0
votes
1answer
68 views

Error using “r.los” in QGIS

I am not a "computer person". So -- I don't know what this error message means. I found this question and answer for this same problem, but the solution did not work for me, dammit. GRASS algorithm ...
1
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0answers
34 views

Error running SEXTANTE in QGIS on Scientific Linux

I've installed SEXTANTE into qgis on my Scientific Linux machine and I am getting the following when attempting to run Warp; INFO|Mon Feb 24 2014 15:56:20|GDAL execution console output|/bin/sh: ...
3
votes
2answers
422 views

Access all plugin from QGIS Modeler (Sextante)

I read that it is not possible to access to all of the installed QGIS plugins from the Graphical Modeler (QGIS 2.0.1). It would be great, in defining the model in the Graphical Modeler, if the user ...
1
vote
1answer
91 views

Sextante in QGIS - downloaded, but does not show up

I downloaded Sextante, and I put it into the directory C:\users[my_user_directory].qgis\python\plugins\sextante-1.0.9\sextant I re-started the computer, but there is still no sign of Sextante in ...
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0answers
103 views

Problems using GRASS GUI (d.rast and r.watershed)

Update#2: I tried the command in the function list above instead in command console, and I got this in command output: and it displayed nothing, showing the same error message in the command ...
4
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0answers
82 views

Help interpreting Moran's I and Geary's C results

I've got some doubts about how to interpret some results for a work. And I) would like someone could confirm or improve my conclussions. I made a correlation analysis with SEXTANTE software in gvSIG. ...
1
vote
1answer
329 views

Unable to load 'nviz' through GRASS

I am using QGIS 2.0.1-Dufouron on Windows 7. When I try to load nviz via GRASS, I get the message "Module nviz not found". Weirdly enough, I can load it via the toolbox and be able to 'run' it (it ...
0
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1answer
700 views

How to use GRASS module to delineate watershed area?

Update#1:I changed to work under qgis 1.8, I only input the DEM file and run the r.watershed module, and I got this: I have a DEM file of one specified region, and I take the following steps to ...
2
votes
1answer
473 views

How do I install and run SEXTANTE for QGIS 2.0?

I just upgraded to QGIS 2.0, and I have been unable to locate/use SEXTANTE tools. A search with the plugin installer does not turn up anything for "sextante." Any idea what is going on?
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0answers
14 views

compatible version of sextante for dufour [duplicate]

Is there a compatible version of sextante for dufour? I downloaded the one from the github and it says it is compatible with v1.x of qgis only. Please email me karl_kliparchuk@bcit.ca
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0answers
70 views

Problem Importing Vector into company GeoServer: FailedRequestError

I am having trouble getting a vector onto GeoServer using the Processing Toolbox (Formerly SEXTANTE) tool 'Import vector into GeoServer'. The tools works if I use a local host URL, however I am trying ...
2
votes
2answers
204 views

How to use ggplot with Processing in QGIS 2.0?

I'm trying to use R scripts within QGIS thanks to Processing. There are some example scripts available and I achieved to plots different columns of the attribute table (with the plot built-in ...
4
votes
2answers
1k views

Installing qgis 2.0 and saga 2.1 on ubuntu 13.04

I have been trying to get this working for a few weeks now. I am trying to install QGIS Dufor (2.0.1) and Saga GIS from the Unstable branch of the UbuntuGIS PPA. When I attempt to do this I get the ...
1
vote
1answer
85 views

How to get the direction raster from r.walk or r.cost

I am trying to use r.cost and r.walk and r.drain to calculate the shortest path from an archaeological site to the nearest basalt source. I am using all this algorithms with the processing toolbox (I ...
2
votes
1answer
111 views

Where can I find a good Sextante Modeller tutorial?

I'd like to enrich my knowledge of the Sextante Modeller. Do you have any good suggestion of a book/workshop etc. to dig into the modeller? Best Regards and thank you
2
votes
2answers
352 views

How to load memory output from QGIS processing?

Many processing algorithms have an option to save output as memory. If ran from toolbox, this works fine, because you can tick the "Open output file after running algorithm" box. Looking at the ...
5
votes
1answer
876 views

Atmospheric Corrections for Landsat 8 OLI Using Orfeo Toolbox

I am trying to correct some Landsat 8 OLI imagery using the Orfeo Toolbox Optical Calibration tool via QGIS. I've retrieved data from Aeronet as well as relative spectral response data for the OLI ...
2
votes
1answer
452 views

Using in-memory vector layer with QGIS processing / SEXTANTE

I'm trying to run the qgis:clip algorithm from console, but am getting an error when using an in-memory layer as the overlay parameter. Is this to be expected, or am I doing something wrong? Code: ...
1
vote
1answer
86 views

How to handle plugins of two different QGIS installations on the same computer

I have a computer with 2 versions of QGIS. Both versions are running on Win 7 64 bits with 16 Mb of ram. One is Dufour 32 bits and the other one is version 2.1 OSgeo4W 64 bits. I am experimenting ...
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0answers
145 views

Saga Reclassify grid problem

I am using Qgis 2.1 ver. 5f5cd4c (64 bit version on win7 64) OSGeo installed. I was trying to reclassify a DEM in EPSG:32614. I used the SAGA's Reclassify algorithm in the processing toolbox. I ...
4
votes
0answers
131 views

How to select features based upon multiple values in graphical modeler?

I'm trying to create a basic model using QGIS, the QGIS graphical modeler and the sextante toolbar. In part of the model, I need to select features based upon multiple attribute values (for example - ...
3
votes
1answer
299 views

How to link R script to Algotithm output in QGIS modeler?

I constructed a simple R script for QGIS modeler (.rsx) that calculates groupwise summary statistics of a vector layer table (sum by field "subject" and "FRC"). The script correctly works. When ...
1
vote
0answers
148 views

Problems with SEXTANTE

maybe the answer is somewhere, but i can't find it right now... I'm getting problems with SEXTANTE and algorithms with GRASS, SAGA... Always is the same, they can't open the files, the error is the ...
2
votes
1answer
82 views

Is there a way to add drop-down list of predefined variables to R-script menu in SEXTANTE QGIS?

I would like to create a drop-down list of variables (similar to what it is done for layers input) for my R script menu in SEXTANTE. Is it possible?
2
votes
2answers
1k views

Setting “R Folder” Path in QGIS Sextante

I have installed R via the R-Project website. I have QGIS installed via OSGEO4W (currently 1.9.0 Master), and have Sextante plugin installed and working with GRASS and SAGA providers. I am now trying ...
5
votes
0answers
103 views

fTools “Join Attributes by Location” missing in SEXTANTE/Processing Toolbox

I am working with the new Processing Framework in QGIS 2.0.1. I really like the graphical modeler, because it allows my to make my own tools without having to be able to write pyhton or any other ...
2
votes
1answer
298 views

Sextante in Qgis 1.9 alpha on Ubuntu can't find saga gis 2.1

I am using Qgis 1.9 on Ubuntu 13.04, Sextante is a core part of qgis now. I am trying to access the SAGA 2.1 libraries through qgis and I keep getting a popup window that says SAGA is not installed. I ...
9
votes
0answers
415 views

SEXTANTE toolbox - GRASS error

I am trying to use the SEXTANTE module GRASS (and SAGA) for vector analysis but whatever function I use I always get the same error:"Could not load layer: G:/closest.shp Check the SEXTANTE log to look ...
2
votes
1answer
207 views

How can I refer to a model variable in a Field Calculator or Pyculator formula?

I am new to QGIS 2.0.1 Modeler (Sextante) and not very able in Python programming. My question regard the use of field calculator (or advanced python field calculator) inside the modeler. Is it ...
1
vote
1answer
167 views

grass algorithms no longer run in QGIS/Sextante

I used to be able to run GRASS algorithms in QGIS 2.0 via Sextante (Ubuntu 12.04) but not anymore. Initially I would double click on any grass algorithm and the execution would stop with: "WELCOME TO ...
0
votes
1answer
294 views

How to use SEXTANTE in a script outside QGIS?

I´m trying to do some geoprocessing using the QGIS Sextante plugin outside of the QGIS application (and integrate it with different other libraries like arcpy, etc.). import sys, os from PyQt4.QtGui ...
4
votes
1answer
590 views

How to get SAGA working with QGIS Sextante?

I just created my account on this forum to find an answer to a stupid (?) problem I can't deal with. First, let's precise I just (some months ago) learned on my own what GIS was, and gave it a try ...
2
votes
1answer
324 views

Access Sextante (processing) in standalone QGIS app?

Sextante is addressable via python using the QGIS python console (unfortunately not from outside QGIS). I´m writing a standalone app and want to include Sextante geoprocessing functionality. In QGIS ...