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I am making an app with some function same as a traffic map. But I have been stuck with below problem for weeks I have used the "Snap to roads" method to match GPS data from mobile device to road while tracking routes of users. But when I display speed data, I can not find any solution to draw...

I saw many examples of Feature Popup activated when the cursor is moved over a feature for OpenLayers 2.0 but none for OpenLayers 3.0. Does anyone know how to do the following : http://jorix.github.io/OL-FeaturePopups/examples/feature-popups.html on OpenLayers 3.0 ? أكثر...

I have a working code (shown at the bottom). The problem is process time is about 12 seconds for each loop. If I want to use this for the whole data I have (about 1 million points), it would take about half year. I think the problem is the following: arcpy.GANeighborhoodSelection_ga(inFile...

I'd like to parse MOD13Q1 VI quality layers in R. My original code must have been incorrect, because it gave lots of "deep ocean" flags in the middle of Brazil. After the changes suggested by Mikkel, that's no longer the case. However I do see some VI usefulness values that don't appear in...

I am trying to automate the export of spatial data from a oracle database to mapinfo .tab files. Using this thread I made my script. However I can't see how to set the encoding right. My data have latin1 encoding. But this is not the case in the output file. I get warnings regarding invalid...

The title is more or less self-explanatory. I have looked and looked but have met various road blocks. Does anyone know of a reliable source for such data? Thanks! أكثر...

I am using JMP 9, which supports WMS maps (as a client), but it doesn't seem to be working now. Is there a web based, or small install GIS client on which I can test a WMS URL? [To clarify, I was looking for something that would help me find out the correct querystring parameters to send, as...

I've been trying to identify ridges and valleys from a DEM and have been using hydrology tools. I identify rivers as areas that have a value on an accumulation raster above a threshold, then valleys are the surrounding areas. I have a system that works on a small area, but when I've tried to...

I have an older version of QGIS on my private computer where the zoom extent of OSM is much greater than the newer version (10.1 Pisa) on my work computer. Is there any way of being able to zoom in on the OSM map to a greater extent without it disapearing on the new version of QGIS...

I have downloaded NDVI MODIS 500m image i.e. MOD13A1. From the hdf format that i got i converted them into tif format using the HEG tool. The images that i got some are showing pixel values -32767 to 32768; some images are showing from -2000 to 10156. How do i use the scale factor 0.0001 in such...

I have to parse a valid Capabilities document (INSPIRE service based on WMS 1.1.1) which has this content: ]> I tried these StaX implementations: com.sun.xml.internal.stream.XMLInputFactoryImpl and com.ctc.wstx.stax.WstxInputFactory (Woodstox). In both ways it comes to an exception...

I use ArcGis server 10.3 ang I have 171 map service in 11 folder.I need recreate all mapservice. This script run for 1 service: Import system modules import arcpyfrom arcpy import envimport os, sys, time, datetime, traceback, string Set environment settings env.workspace = "C:/report_cache"...

* Record all schedules and locations of all Vehicles & Heavy Equipment * Always on call and up to date of Vehicle Locations & Drivers *Follows up Meter Readings/ Hour Readings for all Vehicles *GPS monitoring of Vehicle locations *Directing Vehicles where needed *Monitoring Transportation...

Back in June, timed to coincide with the 10th aniversary of Google Earth, Google introduced some new layers to Google Earth under the heading ‘Voyager’. Today, the layer has received an update and includes a new sub-layer named ‘Animal View’ that is described as ‘exotic creatures in their...

I try to use the Disjkstra shortest length path calculation. On the following program, when I use the Network.shp file (found here : https://geospatialpython.googlecode.com/svn/network.zip) with pStart = QgsPoint(-0.8095638694, -0.1578175511) and pStop = QgsPoint(0.8907435677, 0.4430834924)...

Please help me how to get my application to read data and display it from the shapefiles stored in PostGIS. أكثر...

I know its possible to pull twitter data in from its API and use the geodata to display it on GIS system but is it possible to turn snapchats into a layer on a GIS? As a platform it seems like its restricted in how content is made avaialble but with content tied to location...

I have the position issue problem can you please help me http://jsfiddle.net/mozkan/4c20jjph/9/ أكثر...

We have a geoserver 2.7.1 running as a war on tomcat7 in a Ubuntu 14.04 box. When asking for a WMS we get a java.lang.NullPointerException, but only when the map window is above certain size and only on a specific Geoserver layer. A request like this works fine...

I have temporary layers as a result of turf operations and I now I have the options of download as a JSON file, I would like now the option of download it as a shp, kml, csv or gml. Is or are there any option? Thanks! أكثر...