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Working with QGIS 2.4.0 Chugiak I have a question regarding the clipping of raster images. I have an aerial picture that I want to clip using the extents of a shape file. So far so good, I used the raster/extraction/clipper tool to do this. The prolem is that the file size of my output raster is...

I have a shapefile of OSM data. I plan to use the data for an ArcGIS Engine application, and I was wondering if there are any existing solutions to getting the data's schema into your typical GIS format. What I'm talking about is the "tags" attribute. It contains a comma-separated list of...

DEM analysis: Slope Aspect Hillshade أكثر...

مواقع التواصل الاجتماعي نفرتنا من بعضنا البعض وصارت مواقع للتريقة والمسخرة على عباد الله ، بل هى أداة قذرة من ادوات الامبريالية العالمية التى تستخدم... أكثر...

Whenever I add a WMS layer, from a server on the local intranet, the WMS request gets sent to localhost instead of the actual server I am referencing. I am enclosing screenshots to make sure my problem is clear. Here's how I add a new WMS connection: When I hit connect, the layers from the...

I'm developing an application. In the database I need to store coordinates for many places, in the north-east of Italy, but the area could expand in the future. This coordinates will come from some geocoding web service (currently Google Geocoding API but could change), but also from the GPS of...

I have about 6 million rows with geography spatial features - they are all 1000 meter radius hexagons all over the US. There are a couple hundred thousand that would have been NULL, which I updated to "the north pole" so they could be indexed but not show up in my queries (on recommendation...

assuming I use the following query to match the locations to a poi within 10km distance: SELECTpoi.poi_id,h.loc_id,(ST_Distance(poi.geom,h.geom)*111.111) as distanceinkmFROM iut_poi_transl AS poi, hrs_loc as hWHERE poi.poigr_id != 30 AND ST_DWithin(poi.geom,h.geom,0.09)Data is SRID 4326. Does...

I have a geography type linestring*route_geography geography(LineString,4326)*, its a route from point A to point B. Now I have a point C near that line. I want to find the nearest point on that line, lets call it D. And then calculate the distance between D and B. Should I use...

My company uses geometry (the_geom) data type for storing geospatial data. I've recently been acquainted to the concept of geography (the_geog) data type which, as I understand it, stores the SRID along with the geometry. What are the differences between geography and geometry, and is there...

Bonjour, Je poste ce message pour savoir si quelqu'un à déjà eu ce problème Lizmap 2.11.1 Qgis-server 2.10, Qgis 2.10 ou 2.8 Serveur Debian apache2 أكثر...

I am dealing with landsat ETM+ images after 2003. While filling the line drop outs usiung QGIS Fill Nodata, I keep getting this error, ERROR 1: TIFFOpen:7948_0fill_y_work.tif: Permission denied What could be the Problem أكثر...

السلام عليكم ورحمة الله وبركاته قمت من جديد بتنصيب ويندوز 10 وبصراحة وبعد صبري عليه لمدة ساعة فقط أكتشفت أنه خرافي ورائع بلا حدود ، خفيف جدا بعد... أكثر...

السلام عليكم ورحمة الله وبركاته اولا يجب تنصيب الخطوط فى ملف الفونتات أكتب فى أمر run fonts ثم الصق أكثر...

خطوط (http://www.mediafire.com/download/gtr9qpplcnhgce2/%D8%AE%D8%B7%D9%88%D8%B7.rar) أكثر...

I'm using GeoTools JTS libraries in Java and I want to find the nearest point inside polygon shape to some single target location. This is exactly what in PostGis ST_ClosestPoint does. I found this article discussing "Snap a Point to a Line". So trivial solution will be: -Dump polygon to...

JavaScript Basics – A Survey of JavaScript Libraries for GIS and Mapping أكثر...

I am running ArcGIS 10 desktop verison with the 3d Analyst extension to view DEMs in ArcScene. I want to view the DEM from a specific xyz location, which should be achievable using the View Settings dialogue box in the View menu. When I click on View>View Settings nothing happens except the menu...

السلام عليكم ورحمة الله وبركاته هذا المنتدى مفتوح للزوار ولا يشترط التسجيل للتحميل من المرفقات بل ويرسل الموضوعات الجديدة بروابطها على عناوين... أكثر...

اود ان استفسار عن طريقة كتابة الاطار النظري ( بحث تخرج عن الخرائط -- بكالوريوس ) موضوع البحث عن انتشار الاحياء العشوائية قمت بكتابة... أكثر...