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I've got a problem with openlayers3 and my local tiles server.I have downloaded some offline google map tiles from zoomLevel 0 to zoomLevel 16. All of the tiles are 256 * 256. And they are distributed in some local folders, which name from "0" to "16". Then i copied these tiles into my local...

This question is an exact duplicate of: Creating squared halo instead of circular in TileMill? In TileMill is it possible to style a halo around text that has a square shape instead of a circle? If not, what are the alternatives to make a "halo" around...

I am developing a GIS web application which involves querying and creating map layers dynamically (like page getting refreshed for every 5 minutes) and also static querying etc... This application interacts with PostgreSQL for non-spatial data rendering.. I am using NetBeans to develop the...

I am interested in obtaining the foot paths from OSM data. Specifically I consider the area within the city limits of Berlin. I downloaded the corresponding OSM file from Geofabrik and I intend to use osmosis to filter the data. As a first step I would like the ways which are usable by...

I have some *.trm binary data that is merged Tropical Rainfall Measuring Mission (TRMM) rainfall data. I have to read it through ArcGIS for Desktop to extract rainfall data from this. أكثر...

Video presentation of how to convert vector layers created in QGIS to GPX format and upload them to a GPS receiver, أكثر...

Earlier this week we looked a flood damage in Georgia and Texas. Thank you to GEB reader for pointing us to imagery of flooding in Magdeburg, Germany in 2013. Find it in Google Earth with this KML file . We have been aware for some time that there was major flooding in Brazil earlier this […]...

La crisis de las urbes apunta entre otros aspectos al requerimiento de ofrecer un transporte digno y eficiente a los millones de usuarios que diariamente se trasladan a través de las redes de transporte p أكثر...

Bonjour à tous, Pour faciliter l'usage de QGIS à mes collègues j'ai commencé par développer un plugin qui permettra d'effectuer certaines opérations... Mon problème c'est que je n'arrive pas à afficher les attributs de l'objet sélectionné dans le champs voulu .... le champs dans le fichier...

Runtastic, the company behind a variety of fitness apps, has been acquired by Adidas*in a deal worth €220 million ($239 million). Runtastic*is one of the leading run-tracking apps with over 70 million users. The company has been founded in Austria in 2009 and it grew to a company hiring 140...

Hi Geo-Geeks! This week we’ve got for you something cool. We all use them. We all read about them but do we actually know what they mean? Let’s check if you know the meaning of the most common acronyms. Remember to share your score with the world! And to check out our other GeoawesomeQuizzes...

0down votefavorite I have gps coordinates as point outside the linestring/road. I have interpolated to the closest point in the line using ST_Line_Interpolate_Point(). Now I need to draw line through these points and it must be through the road topology. But ST_MakeLine() simply draws lines...

I have been involved with surveying for more than 45 years. I hold both professional engineer and land surveyor licenses. The reason* for bringing this up is that I am attending an ASCE committee... Click Title to Continue Reading... أكثر...

I have created a 1:many relation in QGIS 2.10.1 with Project Properties>Relations. When I select a map feature with the Identify Features tool, a Feature Attributes window (widget?) appears. How do I export the contents of that window to a new table? أكثر...

This Monday we will kick off three classes on OpenStreetMap, QGIS and Mapbox tools at the International Institute for Information Technology, Bangalore (IIIT-B). The program is designed to introduce post-graduate students to open source mapping tools for real world applications. It is part of...

Gis agricultural big data application أكثر...

The most recent ACS data available is 2013 and Tiger data is also available for 2013. The most recent LEHD data available is 2012 and the geography crosswalk files join it to Tiger 2010 data. Given that the Tiger files are from different years, is it possible (cartographically sound) to map ACS...

I am trying to do this and get no results even though I know there are related values. Both the shapefile and gdb table are part of the same geodatabase أكثر...

When I use graduated symbols for a polygon layer to display population density, the layer is always displayed on top of all the other layers even if I dragged it to the bottom of the Table of Contents. Any idea how to solve this? أكثر...

I'm using this to put legends in WMS layers. It works nicely when similar layers have the same legend (eg. layer A1 with legend AAA and layer A2 with legend AAA). The problem is when WMS layers have different legends. For instance, when two different layers are checked (ie. layer A1 with legend...