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“A Map of Middle-Earth” by Pauline Baynes from 1970“The Lord of the Rings” trilogy is definitely one my top favourite novels. Actually “The Hobbit” was the first book I’ve ever read and the map of Middle-Earth was one of the first maps I’ve carefully studied piece by piece. Who knows, maybe this...

The geospatial media industry is really negligible. Some blogs here, some magazines there. Luckily their authors are very hard-working. This article will introduce a magazine called “Geospatial World” (formerly known as GIS Development magazine). Since 1997 the magazine investigates geo-related...

I'm using OpenLayers 2.13 and Postgresql 9.3 for my development activities.I want to load region data from database and load into openlayers. Below result i'm getting from St_astext(geom) in postgresql 9.0 and above "MULTIPOLYGON(((77.6620335903023 12.8381894855534,77.6620330917475...

Is there any example to add a custom control panel in OpenLayer 3? I have no idea how to do. Thank you for reading my question. أكثر...

I follow an example to add a custom control into Map but it is hide. http://openlayers.org/en/v3.2.0/examples/custom-controls.html Is there any wrong in my code ? map = new ol.Map({ controls: ol.control.defaults({ attributionOptions: /** @type...

I am trying to display the dataset inside the cartoDB as HTML table. When i give request to the postgre database by SQL API, it is returning as the format (json) below in the snapshot. I want the returning dataset to be displayed as HTML table in the browser. I had tried with the below code but...

I’m using ArcGIS 10.1 - I have a point feature for each polygon feature (there's about 40 polygon features within a polygon feature class). I would like to write a python script that creates four line features that radiate out from the point feature and stops at the edge of each polygon feature...

I have a pretty robust dataset of .gpx files i'm animating with the torque layer style. I'd like to be able to color the map by type using a column...for me its 'car' vs 'flight' vs 'train. This works with simple colors, but havent had luck with the torque and css. أكثر...

Hello I am currently working on a project where I need to obtain various statistics data for all of Canada. I have gone to the site and downloaded the boundary files for 2011. The only actual data that comes with that dataset is population and dwelling counts. I was wondering if there was an...

Sorry if my question is "stupid" - I am learning all the time. In postgis database I have two tables - let's say 'polygons' (gid, the_geom,MultiPolygon,srid=2180) and 'lines' (gid, the_geom,MultLineString,srid=2180). I'd like to use "Add circular string tool" from qgis to create same arcs and...

i have problem to download my data in geotiff format. When i download it appear like this. The format is wcs and it is not .tiff type When i upload another foramt such as png or jpeg.. it works well.. What is the problem actually? Does it have problem with my geoserver or the problem is...

I have several lines(streets) and polygons(plot layout of areas) that the shared points (lines: road intersections, polygons shared plot corner) are not connected. Is it possible to auto snap all the points using QGIS and which tool can i use? أكثر...

I am following an example of D3.js used in conjunction with OpenLayers 2 to display GeoJSON on a map. http://bl.ocks.org/mbertrand/raw/5218300/quakes.html In this example, the author set the bounds of the vector collection to be the size of SVG overlay var bounds = d3.geo.bounds(collection)...

This question already has an answer here: How to Start Web Mapping? 24 answers I'm looking to map something similar to this: http://tipstrategies.com/geography-of-jobs/ Does anyone know, first off...

I have a file geodatabase with 20 feature classes and I need to delete a few of them, but the option to DELETE in ArcCatalog, if I select this feature class, and click right mouse, is disabled for the most of the feature classes in the file geodatabase. Why is the reason for that? Can I fix...

A VerySpatial Podcast Shownotes – Episode 530 25 October 2015 Topics: Weather, Mapillary, and Joy of Painting Click to directly download MP3 http://traffic.libsyn.com/avsp/AVSP_Episode530.mp3Click for the detailed shownotes Music The Map by On tour Discussion topics </p>Hurricane Patricia...

Whe trying to clip with batch processing in qgis 2.10.1-Pisa I got the error message attached as a screenshot. Any suggestions for resolving it? أكثر...

This year Esri changed its business data source in the U.S. from D&B to Infogroup. Both companies excel in providing a comprehensive set of business listings, and each has their unique strengths. D&B’s strength is in its financial data and coverage of larger companies. Infogroup’s strength is in...

I am making a web application with OL3 and have integrated a 3d viewer with cesium. I have two data sets that are being loaded with GeoJSON as vector WFS. Both data sets have height information contained and are published as such in GeoServer (Elevation is set). I am trying to give one WFS an...

I would like to delete several raster files in an ArcSDE SQL Server database. I would like to do so with Arcpy. How can I succesfully use a LIKE condition to delete all files in my database that have a certain string of characters, such as _. Meaning that I want to delete all files that...