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I have a point layer with soil values. How can I get a raster layer with different classes of values, since there are areas without point sampling, what´s the best way to have a regular cover of the total area, given the sampling points?? أكثر...

I want to install mapserver with mapcache on ubuntu 12.04 as cgi. I tried sudo apt-get install mapserver-bin, but I'm receiving the following error: The following packages have unmet dependencies:mapserver-bin : Depends: libmapserver1 (>= 6.2.1) but it is not going to be installedE: Unable to...

I have generated my own tiles for part of the Great Britain using the osm.pbf file from here [1] and the style sheets from here [2]. I'm using Mapnik version 3.0.9 and generating the tiles using the polytiles.py script from [3] As I understand it the OSM website uses the same style sheets but...

I use an arrow as a symbol to follow lines, but in several cases, symbols are cut (when line features are too small or changing direction). Here is an example of the result on my Web site: Here is my portion of code from my mapfile: CLASS NAME "Water pipe" STYLE COLOR 0 0 0...

I'm looking for boundary files for towns, villages and prefectures in China that are free. I've came across http://chinadataonline.org/, but they are limited. Can anyone tell me where to look? أكثر...

How well do you know your GIS formats? Because an unknown GIS file format can be every GIS analysts worst nightmare. In your GIS career, you’re going to encounter a wide range of GIS formats. [...] The post The Ultimate List of GIS Formats – Geospatial File Extensions appeared first on GIS...

I have a JSON file containing special characters, which can be represented in Unicode. However, as soon as I export that JSON file to a file geodatabase using arcpy, the special characters all "break," i.e., they come out as something different. A Google search tells me (via this table listing...

I want to query my ArcSDE geodatabase using LINQ but I don´t know if there is an ESRI-provider that may also read geometries and which is able to handle archiving as well. Thus I´d like to read data from a FeatureClass for example and apply a whereclause: IRelationalOperator relOp =...

There have been several imagery updates during the month of November, but since Google has not been publishing imagery update maps we cannot determine the full extent of the updates. However, we can, using the Google Earth API, determine the approximate locations of recent imagery, including...

*L'Entreprise* Ecosphère est un bureau d'études en environnement (faune/flore) spécialisé dans l'expertise écologique, le conseil et l'aménagement des milieux naturels basé à St Maur des Fossés (94, Ile de France). http://ecosphere.fr *Cadre du Stage* La géomatique a pris une place... أكثر...

I am trying to find a way to join CSV data to a vector layer only when they both share matching values in multiple fields, rather than just one field. This is a problem I'm running into with multiple projects, but I'll just describe one here as an example: The data I am working with is as...

I downloaded administrative shapefiles from www.gadm.com/country (China). The Python (Basemap) code below tells me that there are 2365 polygons in it. However the .csv and .dbf files included with the shapefiles tell me that there are only 344 administrative divisions at this level (which...

My problem is the following When Importing dxf with dxf2shp the rotation value for the text isent there Here is part of my DXF file : TEXT 5 6881 330 6970 100 AcDbEntity 8 Nummer 6 Continuous 62 7370 0100 AcDbText 10 532781.146132 20 6224946.688754 30 0.0 40 0.299994 1...

I'm looking for resources that explain how I should convert screen coordinates (the point that I pick on-screen) to geographic coordinates (lat / lon). I want to build an application where, the simplified version, I can pick a point from an on-screen map and the geographic coordinates are...

From polar bears in the Canadian Arctic, to communities in the Brazilian Amazon, to blue oak trees in Central California, the impacts of climate change is being felt by plants, animals and people across the planet. As world leaders gather for the COP21 conference in Paris this week to discuss...

I'm updating on Ubuntu 14.04 , but I have these tracebacks for QGis : Preparing to unpack .../qgis-provider-grass_2.8.4+20trusty_amd64.deb ...dpkg-divert: error: `diversion of /usr/bin/qgis to /usr/bin/qgis.bin by qgis-provider-grass' clashes with `diversion of /usr/bin/qgis to...

Having used QGIS for quite some time for mapping, I was 'forced' to dig into GRASS as pansharpening is not directly executable in QGIS. After understanding more or less the structure, I did some trials with i.fusion.brovey. I was able to generate the rasters with 15m resolution, but when loading...

Couple of months ago Google introduced the*News Lab, a new program to empower innovation at the intersection of technology and media. In order to do that Google has been releasing many cool datasets on*Google Trends Datastore. One of such an datasets (not yet available in the datastore) has...

I'm trying to identify features from multiple layers. For example, I have many locations around a river (within a 100 m buffer) which I would like to identify, but instead of having to draw rectangles around river segment and identifying many unnecessary locations, I would want to only identify...

I'm on Windows 7, using PHP Version 5.6.14 on Apache 2.4 and I'm trying to access to a Spatialite database. All works fine when execute "no spatial" SQL query in my PHP procedure but when I try to use the PtDistWithin in a query like ... SELECT .......... WHERE...