1
vote
0answers
17 views

How to unckeck automatically the “No Data Value” predefined on raster background on QGIS 2.14?

I'm trying to import a bunch of rasters, but there is a parameter predefined on the TIFFs, where says that No Data Value should be marked. But I need this unchecked. I opened the metadata, and found ...
1
vote
0answers
24 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
46 views

Save and load user profiles in QGIS

Is there a way use a configuration file, maybe .ini to load in the relevant settings for QGIS when it is setup, maybe to share with various people? Plugins installed and plugin repositories filled ...
1
vote
0answers
19 views

Clip Layer Stack

I layer stacked the Landsat 8 Bands (1-7) in QGIS and made a polygon shapefile. Every time I try to clip my layerstack with the Mask layer I just get a completely black output raster. I want to use ...
1
vote
0answers
27 views

Installing Python/site packages on LAN server

I'm going to be sharing an ArcGIS script tool with coworkers and I want to store all necessary mxds, gdbs, and script files in one folder on the server so the file paths are absolute. However, the ...
1
vote
0answers
40 views

QGIS does not launch after plugin and python loading

I have a big problem with lauching QGIS. I have been using QGIS in the past, but now I can't launch it. I tried re-install, but it doesn't help. I tried install different versions of QGIS (1.7, 1.8, ...
1
vote
0answers
29 views

Python QGIS reliable intersection/overlap check between points and lines

In my script I need to check, whether a point I created stored in a memory layer lies on a polyline, which is in another memory layer. I am certain, that the point does overlap/intersect the line, ...
1
vote
0answers
33 views

Georeferencing tools QGIS 2.10.1

I had created an shaplefile on QGIS. That shapefile came from a georeferenced raster. I have created that with the CRS EPSG: 3857 - WGS84/PseudoMercator, than i converted to EPSG:4326, WGS 84. I ...
1
vote
0answers
41 views

projected coordinate system and transformation

I'm a beginner with GIS and I'm currently working on ArcGIS 10.3. I have two distinct shapfiles : one within the projected coordinate system "NTF_Paris_Lambert_Sud_France" and the second one within ...
1
vote
0answers
53 views

QGIS 2.14 does not work after installation

After installing for the first time qgis 2.14 on my laptop, starting qgis with the shortcuts is not working, no error messages. (Windows 7, ArcGIS Desktop already installed, 64 bit System). I have no ...
1
vote
0answers
24 views

Gdalwarp UTM reprojection causes image distortions

I'm trying to re-project Sentinel-2 images to a common UTM zone in order to create a mosaic. For this I'm using gdalwarp with the following syntax: C:/OSGeo4W64/OSGeo4W.bat; gdalwarp -t_srs ...
1
vote
0answers
32 views

gdalwarp won't run with “cubic” resampling method

I am having an issue with running the gdalwarp command from command prompt. Basically I have a raster WGS84 file, which I would like to reproject to spatial reference which is using the Azimuthal ...
1
vote
0answers
54 views

mosaic rasters with gdal_merge.py

I want to mosaic 2 rasters "rasa" and "rasb" using gdal_merge.py . While running the code, it produces an error " No input files selected". Can somebody help me to find the error in the code? ...
1
vote
0answers
49 views

Cursor help on large spatial query in PostgreSQL

I have two very large tables on which I want to perform a spatial query. UPDATE table_a SET att_1 = b.att_1, att_2 = b.att_2 FROM table_a AS a JOIN table_b AS b ON ...
1
vote
0answers
27 views

GeoServer, can't view WMS of WFS unless I'm logged in

I'll use the import extension to import a KML file. When I go to Layer Preview and use the OpenLayers option (basically, a WMS GetMap url), it displays. When I try to use the url in a browser and I'm ...
1
vote
0answers
12 views

Create a map of only one country in DIVA-GIS

I made a map of china with the places where the climate is suitable to plant Brussels sprouts. The bounderies of China are in a shapefile. However the layer with the colormap showing where the climate ...
1
vote
0answers
33 views

Optimize Postgis contour lines DB

I'd like to try to optimize a world-wide 10m contour lines (isohypses) Postgis database(from SRTM). The complete DB takes 504GB on disk, contour lines are already in epsg:3857, and simplified with ...
1
vote
0answers
31 views

Programmatically adding folders & layers to QgsComposerLegend

I've been building up QgsLayerTree object with a directory structure that reflects the desired legend. Specifically I'd like the Group(s) to be titles and their contained layers to legend items. ...
1
vote
0answers
12 views

Shifted raster after processing

After I use an algorithm like "sink removal" my raster is shifted around 50 km to the south and west! Before this operation I needed to reproject the DEM from MGI / Austria GK West to WGS 84. Does ...
1
vote
0answers
19 views

Mapcanvas not showing layers features

usually when i load an osm file with lots of features (>10000) the qgis will go not responding, when the files loaded, layers will show up, but not the features on the map canvas, its just blank ...
1
vote
0answers
57 views

OpenLayers 3 - Adding layer with administrative labels and borders

I am in the process of migrating a website from the Google Maps API to OpenLayers 3. This site shows a map with custom tiles and administrative labels and borders on top of them (country/region/city ...
1
vote
0answers
14 views

Plug-in reloader

There's something i don't understand in the behaviour of the "plugin reloader" plugin : When an error occur in the test of a plugin "plugin reloader" reloads a new instance of my plugin (the one with ...
1
vote
0answers
49 views

Troubling using MODIS package in R (mac). Error with gdal

I'm new to using MODIS data, and have been trying to set up a a way to use the HDF files produced by MODIS on R. I had trouble with gdal (could only download the package through system dialog), and ...
1
vote
0answers
33 views

Creating/modifying arrowhead symbology to create a 'pie' style symbol around a point

I have a point dataset that has 18 (2 categories of 9) variables that need to be symbolized. We want to symbolize each variable using an arrowhead symbol or some kind of triangular symbol that, by ...
1
vote
0answers
41 views

How do I calculate the percentage of progress using raster data using Python?

How do I calculate the progress amount of two or more raster data being processed? I have seen examples of vector data but it becomes difficult to calculate the progress when no vector data are ...
1
vote
0answers
18 views

Segmentation boundaries image in eCognition

I need to save the segmentation result (boundaries image) as a raster file using eCognition. Anybody can give me some directions about this? Thanks, Jaime
1
vote
0answers
27 views

Get Styles for Feature Layer in Feature Collection, Customize Layer List

so I'm using the JavaScript API to customize an ArcGIS web app and I need to take feature layers and group them in the layer list widget. Here's the code I have that does that (in the widget.js file ...
1
vote
0answers
18 views

Symbols changed in conversion from QGIS to Webmap

When I convert a map in QGIS to a webmap, the symbols are changed--the size is ok, but all the specific symbols-- stars, diamonds, etc.--are converted to circles. Does anyone have suggestions on how I ...
1
vote
0answers
48 views

arcpy symbologyType is always OTHER, but I need UNIQUE_VALUES

I am trying to load a TIF file to the mxd using arcpy, then add a definition file to map colouring. For one layer I have the problem, that the amount of values will always be different, sometimes it ...
1
vote
0answers
39 views

ArcPy Dissolve Statistics Fields - fixed into variable

How can I change this fixed POP column into my variable: field = parameters[1].valueAsText. It says syntax error everytime. StatField = "POP MIN;POP MAX" arcpy.Dissolve_management(in_features, ...
1
vote
0answers
11 views

mapcache timeout does not work

I try to seed a wms service that is very very slow. Therefore the seeding fails with the message "Operation timed out after 600000 milliseconds with 0 bytes received". It seems not to be possible to ...
1
vote
0answers
37 views

Geojson taking long time to load in google map from database

I am trying to load a GeoJSON file from a MySQL database but it is taking about 6-10 seconds to load the data into the map. This is what I have done so far. I generate a GeoJSON file after doing a ...
1
vote
0answers
13 views

ogr2ogr FAILURE: Couldn't fetch requested layer 'ùnlt'!

I am getting the following error message with ogr2ogr while try to convert into MySQL. I have tried PGeo,Shapefile and FileGDB. FAILURE: Couldn't fetch requested layer 'ùnlt'! My environment is ...
1
vote
0answers
22 views

Saving styles to database

In QGIS, the option to save the style to a database (postgres) does not appear in the drop down list if the postgis table has been opened using add vector layer and then entering the postgres database ...
1
vote
0answers
18 views

How can I use ST_Contains/ST_Overlaps with non-simple lines?

Following the SQL of the accepted answer to How to get smallest line segments from intersection + difference of multiple overlapping lines? copied below. I'm having some difficulties assign the ids of ...
1
vote
0answers
15 views

I can´t open a GeoTiff layer in QGis Lyon

I get a problem. I have been trying to open a Geotiff layer and Qgis turn off automatically. Then a report appear (bellow). I hope someone can help me with it. Dyld Error Message: Symbol not found: ...
1
vote
0answers
20 views

Stretching a map to the full width of the browser after complete zoom out and without repetition of grids?

I want to extend the first block from left (with red inside borders) to stretch to the full width of the website. The example code is given below. html, body { height: 100%; background: ...
1
vote
0answers
18 views

gxraster.dll error

I have ArcGIS 10.3 running on Windows 7... and I have recently come across an error that I have not encountered before. After starting ArcMap, I receive an error stating: C:\Program Files ...
1
vote
0answers
21 views

Raster cleanup problem in ArcObjects

I am working on Raster cleanup tool and using below like but I can't understand what is the output rectangle or block. Could you please clear my doubt. ...
1
vote
0answers
41 views

Is PostGIS / PostgreSQL UK Public Sector Network (PSN) compliant?

Is PostGIS / PostgreSQL UK Public Sector Network PSN compliant? ... specifically so it can be used in a UK local government council?
1
vote
0answers
18 views

Only show layer preview for group layers the user can access

I'm having problems using geoserver to serve geodata to some customers without displaying their respective group layers to each other (version 2.8.2). Both users have access to their own workspace ...
1
vote
0answers
17 views

CartoDB geom (coordinates) join: without exact match

Trying to join two datasets (layers) on CartoDB based on their geographical fields (in CartoDB's the_geom created field). However, the basic ST_Intersection function does not work since its tolerance ...
1
vote
0answers
32 views

Google Earth Extension to export georeferenced image?

Has somebody coded an extension to Google Earth that will export a georeferenced image from google earth? Google Earth and Google Earth Pro only export the image *.jpg *.png etc and don't export the ...
1
vote
0answers
35 views

Creating mercator projection for Mars planet in QGIS?

I would like to insert a new SRC in Qgis like a mercator projection for Mars planet. I selected personalised projection in "preference" icon. I cliked on add a new SRC: Name: MarsMercator ...
1
vote
0answers
16 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 ...
1
vote
0answers
54 views

Writing custom GUI map application without installing QGIS

I would like to know if it is possible to develop standalone map applications with QGIS without installing QGIS software or embedding QGIS. Most instructions ask to either install QGIS or embed in to ...
1
vote
0answers
11 views

Grid doesn't show up in printer composer

I am trying to get a coordinate grid on my map with the printer composer. I have tried every example and followed it exactly but for some reason the grid doesn't show up at all. I am working with Qgis ...
1
vote
0answers
24 views

Corner parcel frontages

We’re working on an evaluation of parcel conformity within zoning districts for a city and need to calculate frontage for all parcels. We’re able to do this for all parcels with the exception of ...
1
vote
0answers
9 views

Export color corrected rasters from a catalog in arcmap

I have several raster in a raster catalog for which I(ve used color correction. I'de like to export each raster as a geotiff with exactly the same resolution and world file than the original geotiff ...
1
vote
0answers
8 views

How to share business logic among multiple applications using different apis with arcgis?

I've been working with ArcGIS and Esri WPF API for a year, but now me and my job colleagues felt the need to build a new application using the Esri Javascript API. Our application using WPF API has a ...

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