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I am working in ArcGIS and I have a 75 basin polygons and a point feature (called origin point) within each polygon. (Not necessarily in the centre of the polygons). I want to create 100 polygons inside the basin polygons ranging in distance from the origin from 1%, 2% etc through to 100% of...

I was debating with one of my collegues on OpenLayers v/s Leaflet. I made a point that OpenLayers is much better API if we wish to build a project, where you need direct connectivity to the Geoserver and PostGIS. Then I found Open Data Kit, which looks pretty new but has the features of...

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Bonjour, Je ne sais pas si cela vous arrive. J'ai un plantage hasardeux et récurrent sur QGIS 2.6.1-Brighton lorsque je passe souvent en mode Edition une table attributaire. Le sablier s'affiche puis cela affiche "Ne répond pas' J'ai pensé que cela pouvait venir de ma mémoire vive mais...

I am trying to get the on click event when a marker is clicked, but its not working at all. Here is my code var list = ...list of codes...;cartodb.createLayer(_this.mapData.map, { user_name: 'myusername', type: 'cartodb', sublayers: [ { sql: "SELECT * FROM...

I would like to then use the hedgerows by bringing it into QGIS as a layer. I need to know what software to use and the method to make such a layer? أكثر...

I am a newbie to GIS, my organisation plans on upgrading/replacing the Present GIS Framework. In current scenario we have AutoDesk Mapguide Version 6.0.4.5 a legacy application having a MapGuide Author and MapGuide server to host the maps on the Intranet displaying the Telecom details and...

I want to plot an image of 3193 x 3293 pixels with 1502 points. When running in a smaller image and less points (934,722 pixels and 60 points), everything runs perfectly. I wrote like this: # I am just giving the general characteristics of the data; img = numpy.ndarray, dtype = uint8, shape...

I am trying to install orfeo toolbox in my MacAir with Maverics. I am using homebrew but the installation fails with the following error log: ==> Downloading //downloads.sourceforge.net/project/orfeo-toolbox/OTB/OTB-3.20/OTB-3.20Already downloaded: /Library/Caches/Homebrew/orfeo-3.20.0.tgz==>...

I want to display wmts layer (in KVP mode) in every scales using arcgis_js_api 3.4. When I create wmts layer and set MapWidget.scale to one that isn't in the wmts capabilities level description, layer just disappear. I wrote a js code scaling the image to match scale in the map by divide...

I have a complex workflow prepared in the processing modeler, but I'm missing one step to link all the model. As said, I need to dissolve a polyline vector in a single line vector that has as attribute the SUM of a specified attribute of the polyline vector.I can do it via plugin (dissolve with...

I would like to use v.net.steiner to do some fibre network analysis and planning. The application is very similar to that asked at Steiner tree problem: Optimal routes for Fibre planning on road network. Documentation suggests that v.net.steiner is available via the Processing menu option on...

How do you set a polygon layers transparency in DotSpatial? I'm using vb.net in visual studio express 2013 and using a Dotspatial nugets package which has given me DotSpatial version 1.7. Please see my code below in how i'm currently adding a new polygon shape to a dotspatial map control...

I want to display a Vector's OpenLayers based on GeoJSON with X, Y coordinates . What EPSG have to use to transform and display it on the map? أكثر...

I have lidar data that is classified as several categories (water, ground etc.). I need to open this lidar data in some software (it will be great if it would be a open source software) and delete a couple of them to leave only ground category. Afterwards I have to export this data as *.las...

What types does the arcgis server accept as input when using rest to access geoprocessing services? I didn't manage to find a list. أكثر...

I'm trying to extract field boundaries and features from a lot of aerial images of agricultural land - and avoid digitizing these features manually. I've managed to get a crude raster file of the features that I want by manipulating the threshold colour values in GIMP and geocoding the resulting...

As shown in the figure below, these two points are in the same position but with different attributes. (TextString). I am wanting to join these two points together but with different attribute in different field. أكثر...

I want to track object using openlayer maps. Did anybody had idea about it.? أكثر...

What is/are the best way(s) to host mbtiles? I have tried: hosting on my own server with tileserver.php: this works and is very straighforward and simple to set up, but doesn't seem to be super fast (maybe a problem with my server) and I fear that when the site opens to the world it will...