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I am using QGIS Server and Leaflet to display geotiffs on my website. I have created an onMapClick function which uses a GetFeatureInfo request to QGIS Server which returns the value of the geotiff in a popup. The function looks like this: popup = new L.Popup({maxWidth: 400});function...

I am trying to make a model using Iterate Row Selection. I have a buffer shapefile and a line shapefile. Ideally I would like for the model to loop through the buffer shapefile and select each row one by one. When one of the buffer polygons is selection, I need to run a select by location...

im trying to create a feature type for a ship in geoserver but when i post the request to the server i get this response [geoserver.rest] - Trying to create new feature type inside the store, but no attributes were specifiedthis is xml data that im sending to the server ...

Dr. Waleed Abdalati provides an overview of how scientists use satellites and a variety of other tools to study the Earth’s climate and changes in ice in the polar regions. أكثر...

I'm using the heat map plug in and I want to fill in my circles with just one color that corresponds with a specific color along a gradient. My tinkering has not been fruitful and every tutorial I've found has used gradient color. Suggestions? أكثر...

i have a problem whem i am working to calculate the ndvi from landsat sattellite of rainy season i have assumed the pixel value above 15000 are clouds and calculate NDVI.then i am assigning the clouds pixel in ndvi 1. The main question is how to calculate zonal min max value of ndvi and...

Is there a way to display selected features no matter the scale level in ArcMap 10.3? When I select by attribute and then zoom to selection I often just get a blank map since the layer is set not to display at the resulting zoom level. To just change the layer to display no matter the zoom...

Field Calculator: using the x- or yat or (0 "or-1" ) expression, I keep receiving an error: An error occurred while evaluating the calculation string: Index is out of range. I have shut down and restarted a few times, sometimes the error does not return. Any ideas on why this is happening and...

Bonjour à tous, Je souhaite découper un raster selon un polygone sans avoir le rectangle noir autour, mais tout en gardant une couleur la proche du noir possible pour les pixels en noir qui deviennent blancs s'il on sélectionne une valeur nulle supplémentaire de 0. A priori, je pense qu'il...

This article written from the end user perspective clearly explains the benefits of documenting a crime scene with 3D laser scanning. When it comes time to collect evidence at the scene of a crime,... Click Title to Continue Reading... أكثر...

I'm looking for some free geocoding service with possibility to retrieve contact information to specific place like phone number, email etc. Currently I'm using MapQuest:http://www.mapquestapi.com/geocoding/and they are returning only localization and name أكثر...

I am trying to use Spyder IDE to develop a python script using python library from grass-6.4.3. I run the script below, and get 'ImportError: No module named grass.script' I am using python 2.7, installed in Grass, Spyder, + native install (C:\python27) and my OS is 64-bit Windows 7. This...

I am having trouble connecting to an Oracle Spatial data with QGIS client. I use QGIS Version 2.2 (Valmiera) to connect to a database schema in Oracle Spatial.I asked our DBA access to our database stored in Oracle Spatial. He granted me some privileges on some tables to perform Select...

Bonjour Je travaille avec Qgis 2.6 J'ai installé l'extension "go2streetview 6.2" qui permet d'afficher "Google Street View" ou "Bing Bird أكثر...

How to resolve the postgis "type geometry does not exist" issue on installing tiger_g I have installed postgis extension in my db and I have few columns associated with its type in few tables and now I would like to use reverse geocode functionality in my app and hence I tried to create...

If I am creating data from satellite imagery, is this classed as primary or secondary data? If I am creating slope data from a DTM, is this then classed as primary or secondary data? Any help with this would be greatly appreciated, thanks. أكثر...

i have the following problem: i serve raster tiles (jpg / png), loaded into PostgreSQL/PostGIS with raster2pgsql, with Geoserver imagemosaic-jdbc plug-in. Which is working, but from the 25 GB file size the database size is growing to about 383 GB. Mostly the "pg_toast" table, the created table...

On CentOS 7 I have QGIS Server and QGIS Desktop installed. In QGIS Desktop I created a project with raster and vector data and saved it in a ".qgs" file. Then I copied the file in "/var/www/html/cgi-bin/" and also copied the files "qgis_mapserv.fcgi" and "wms_metadata.xml" into this directory...

I'm building an api to make distance lookups using Django 1.8, GeoDjango, Django REST Framework and PostGIS. Locally I'm using PostGIS 2.1.7, my host (PythonAnywhere) uses 2.1.4... I'm not able to install an earlier version locally (not so strong with making and installing). The problem is...

Anybody have recommendations for creating a fishnet shapefile using QGIS? The equivalent task of "Create Fishnet" in ArcGIS. أكثر...