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When J. R. R. Tolkien was writing The Lord of the Rings, the map was not an afterthought. (For one thing, with characters travelling many miles over many months, separately and together, distances and dates had to add up.) Tolkien didn't just draft; he drew -- maps, sketches, drawings, whatever...

السلام عليكم ورحمة الله وبركاته بين أيدي حضراتكم الأن مجموعة مؤلفات في نظم المعلومات الجغرافية تأليف الأستاذ الدكتور ماجد محمد شعله والمهندس حسام... أكثر...

I am trying to set the extent of my window to a layer on my canvas. This has worked smoothly until I started using Web Mercator maps instead of WGS84 maps. My features are getting their geolocation from an external source which feeds in decimal degrees, so I am using on-the-fly transformation to...

I am working on generalization of Gelogical maps, and fisrt thing I am wondering about is aggeregation of sepatate patches that may have same class and which are closely situated to each other. So, my question is, what algorith can be used in order to aggregate these separate polygons and draw...

can someone help me to get any type of layers added to a map dynamically?I want to get all layers added to the map and according to each layer , I want to perform search on it. أكثر...

I am working with 2 datasets: delineations of the neighbourhoods traffic network. This is how they look: I would like to calculate the length of the roads per neighbourhood (polygon). As you may expect some of the roads are in more than one neighbourhood so what I have to do...

I have to merge almost 8000 rasters (TIF). I tried using Mosaic To New Raster in ArcGIS 10.3, but it's processing really slowly and crashes quite often. Is there a faster (or more stable) way to merge 8000 rasters? I also have access to QGIS 2.10.1, but I'm willing to try any free...

I am interested to find out how others process topographic survey data in ArcGIS. Often I am only given a text file or an Excel spreadsheet containing XYZ points and simple attribute information describing the type of the survey point (Tree line, Fence, Road, etc.). Depending on the type of...

Can anyone please tell the difference between Geoparsing and Georeferencing? أكثر...

I used the qgis2web plugin to generate a set of static HTML files out of my QGIS project. This is how my layers look in QGIS: So, there is only one layer of points and a basemap. Very easily I converted this to a set of HTML files using qgis2web. Here is how the structure of the directory...

My final goal is to get country borders from OSM via Overpass API.I know my country's relation object id - http://www.openstreetmap.org/relation/59065 - and can get its details with the following query: [out:json]; rel(59065);out body;The relation members list contains ways (which comprise the...

Using OpenLayers 3, I cannot get this message to go away: Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://myserver:8085/geoserver/sf/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=sf:view1&maxFeatures=1&outputFormat=JSON. This can...

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I have a FME workspace and a workspace runner. The workpace reads several sources (POSTGIS & SHP) but only one is batched. In other words, all shapefiles in one folders are all analyzed against files from other sources, which remain the same on every run. My problem is that the writer has a...

I'm trying to figure out how to create a polygon that connects all the endpoints of a shapefile containing a set of polyilnes with pythonscript in ArcGIS, I'm having trouble doing this as the order of the nodes in the polygon is important. I want to achieve the grey polygon in the picture from...

I am relatively new to modelbuilder and I need some help with attribute querying and exporting. I am using modelbuilder in arcgis 10.2 and I need to find out if there is a way of exporting the values within a specific column of a layers attribute table for subsequent input into the contour list...

I have just started using openlayer3. I have made a sample example which takes map of india as a base map. I want it to display coordinate of india on click. But here i am getting different coordinate. Can any one help me to map coordinate of country to image. I can use a geojson or image file...

Is it possible to use WMTS e.g. by http://data.wien.gv.at in QGIS? I would like to import the data published by the City of Viennaas a layer in QGIS. Is this possible at all, and if yes, how do I do it?ich bin kein profi und bitte daher umunterstützung. This is what I am talking about...

السلام عليكم ورحمه الله وبركاته اعضاء المنتدى الكرام يتشرف مركز الخبرة الحديثة للتدريب والاستشارات دعوتكم للتسجيل بدورة المعايير الحديثة في... أكثر...

I have several spatial layers created in QGIS that are held as spatial data in SQL Server 2008 R2. What I want to do is to find the centroid (OS Easting and Northing) of the polygon from the geometry. But I want to do this in a view that I have of the data. Each table I want to do this on, has a...