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

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15 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 ...
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53 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 ...
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1answer
213 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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1answer
84 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 ...
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1answer
88 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 ...
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373 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 ...
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53 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. ...
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70 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 ...
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108 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 - ...
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70 views

How to analyze the signatures for a Landsat clasification with Sextante in Quantum Gis

I’m defining my training data for a Landsat classification. I´m digitalizing the polygons with the field data in QGis and I want to analyze the signatures of the Landsat images to avoid errors. In ...
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88 views

Can layers from Spatialite db be used as input for a Sextante model?

I'm trying to build my first models in SEXTANTE and already fail at the start. It seems not to be possible to add a vector layer which derives from a database. Orginally, the layers are from a .mdb. I ...
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120 views

Sextante - SAGA- Shape to grid question?

I have a vektor shape (Index 1-5). After using the saga tool (shapes to grid) I'm getting a raster (values 1-5). The problem is that the NO DATA area is defined as 129. Is it possible to set 129 as no ...
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31 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: ...
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99 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 ...
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137 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 ...
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0answers
78 views

How to Configure sextante in Qgis 1.9 ubuntu

I am using Ubuntu 13.04 and the most up to date version of Qgis 2.1.0-Master. I am trying to get sextante to work correctly and have a hard time. Specifically SAGA 2.1.0 and GRASS 6.4.2 will not ...
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64 views

Problem with nviz and QGIS 1.8

I am using QGIS 1.8.0 on Windows 7. In nviz (via SEXTANTE), after selecting an altitude layer and the GRASS region extent, I hit OK; the progress bar quickly reaches 100% and then absolutely nothing ...
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77 views

GIS Maximum area coverage problem

I want to find optimum antenna location for an area. Every antenna can cover an circular area. These areas diameter is 750meter. So how can i find minimum number of antennas and locations. NOTE: I use ...
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245 views

SAGA kernel density error with Sextante Modeler

I can succesfully perform SAGA kernel density analysis with Sextante (1.0.7) in QGIS 1.8.0. But i want to built an automated tool for this job with Sextante Modeler. But i got foolish errors. This ...
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114 views

How do I fix this QGIS sextante error? NameError: name 'sextante' is not defined

A colleague of mine posted this the other day. We haven't got any nibbles yet and I wanted to elaborate on the issue. We are having trouble running the r.mapcalculator function and receive the error ...
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33 views

When a raster is described in general as either a double or an integer how do conversions work for that type

I know a raster format is essentially a grid of cell values that may have values associated with color, but I'm unsure of how the primitive types factor into the format. In addition if I need to write ...
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358 views

How to Sextante model builder within QGIS to convert KML to shapefile?

Are there any tutorials on how to use Sextante within QGIS? How I could use Sextante model builder in QGIS to convert KML to shapefile? This is a routine task and Sextante would really help. I am ...
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42 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: ...
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76 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 ...
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48 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 ...
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77 views

QGIS Sextante plugin batch mode

I have been trying to get a version of Sextante in QGIS to run in batch mode without success on either Windows or Ubuntu. In Windows 1.8 version I get the error "NameError: global name 'os' is not ...
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26 views

Filling a table column by query in my model

Im creating my first model with the sextante toolbox. One of my result shapes has 2 columns. These columns should be filled by the user. The user should have the chance to decide which value should be ...
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36 views

I get an Error while using Sum line lengths in Sextante

I use QGIS 1.8 and Sextante 1.0.9. I have two Shapefilelayers: one linelayer with different Bird-Movements and one gridlayer (Polygons). I need to count the lines in the different Gridpolygons ...
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39 views

SEXTANTE Saga-grid normalisation and KBS

I tried to use the saga tool grid normalisation. The result is ok but the KBS has changed. Is this an error?
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164 views

How to run Geographically Weighted Regression using SAGA modules in SEXTANTE for QGIS?

I'm trying to run the GWR analysis through SAGA module in SEXTANTE (QGIS). However, I couldn't do it myself. The software tool does not allow me to enter the input data in the destination field. It ...
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135 views

problems with r.sun from GRASS

I´ve problems with r.sun from GRASS. I need to calculate beam radiation, reflect radiation and diffuse radiation wwith this tool. my problem is I do not understand that you have to put mandatory files ...
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59 views

SEXTANTE v.to.rast.attribute issue in script

I'm trying to convert a vector layer to a raster by using the GRASS function v.to.rast.attribute in Python. My code doesn't throw any error but the raster image is only a square of 1px. But when I'm ...
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64 views

How to calculate line length in a Sextante model?

I want to use Sextante Modeler in order to iterate the following process : dissolving line shapefile add a "length" field calculate it in meters For those purposes, I used : dissolve function from ...
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145 views

SEXTANTE runalg and QgsVectorLayer issue

I'm trying to make a script for converting polygons to lines. But I'm having some issues while generating temporary layers. In this script, I iterate through all the features of the input layer to ...
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83 views

Sextante script for statistic info

I want to generate a script for getting statistic information window from selected feature. For example i have two layer building(polygon) and railway(linestring). By using this tools i got a window ...
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160 views

SEXTANTE “could not load layer:…”

When I try to do a GRASS command via SEXTANTE in Qgis I always get the error: "Could not load layer:...." check log file Does not matter wether it should be saved in temp or another folder. I found ...
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162 views

Unsupervised KMeans classification in QGIS-Sextante

I get an error trying to run Unsupervised KMeans classification in QGIS-Sextante following Michal's at http://www.faunalia.com/content/detecting-tree-canopies-unsupervised-classification-sextante. I ...
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57 views

'module' object has no attribute 'NullFID' issues installing QGIS Sextante

I have a problem installing the sextante plugin on linux debian. I get the following error: The plugin is broken. Python said: 'module' object has no attribute 'NullFID' I am new to qgis. Your help ...
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0answers
78 views

'D8 Slope Grid' in Sextante-QGIS is not working

I can't make 'D8 Slope Grid' work in QGIS-Sextante. 'Pit Filled' and 'D8 Flow Direction Grid' output work okay. I used the function: Geoalgorithms > Uncategorized > Basic Grid Analysis tools > D8 ...
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0answers
57 views

Why don't libgrass.so.1.8.0 and libqgissqlantconnection.so.1.8.0 load?

I have compiled Qgis 1.8 at Ubuntu 12.10, but some phyton plugins does'nt work, like sextante. Trying to solve this problem, some files don't have been load. They are: libgrass.so.1.8.0 and ...