I’m new in SQL Server 2008 and I hope you will understand my question/need. Thus, I have a table which contains 3 fields (Name, Lat and Long) in my data base (spatial). I want to create a … I have a spatial table in a postgres/postgis database. Every row in it represents a Polygon. It is of following form: +—-+——–+ |gid | way | +—-+——–+ |241 | 01030..| The geometric … Is it possible, to correct a raster DEM by changeing the raster-cell-values manually, like by ‘painting’? My DEM (ASTER) have one small error where the elevation is about 300m below the actual … I have two layers. A polygon-shape-layer with many tiles and a raster-layer containing CORINE 2006 land cover with many categories in a colourmap. I want to obtain for each polygon in the shapelayer a … I am running QGIS 1.7.0 on Mac OS X 10.6.8. When creating a polygon, how do I do it so that the lines are straight (90, 0 degrees, etc.) and when I create corners they can be right angles? For … I may receive maps from any source for my project, and for the C++ algorithm I’m making, it’s imperative for the algorithm to know where road junctions (nodes where more than two road segments meet) … I have been a GIS Analyst for over 10 years and am currently studying java (50% through the course). My plan is to develop GIS applications mainly focused towards open source solutions. I would like … I was asked recently by some students what types of operations GIS Analyst/Developer are usually trying to automate by using Python with geoprocessing in ArcGIS and ArcPy site package. I guess it … I am working with an add-in of ArcMap in c#. From c# code, i have executed some python scripts. Now, to run those script, I have hard-coded python path. But this is not portable. So, I want to get the … Besides Zillow’s creative-commons licensed neighborhood boundaries shapefiles, what sources of neighborhood boundaries are there? Not just in the US, but all over the world. Free/open source is … What are the pros/cons for storing storing spatial data in Google Fusion Tables versus Amazon Web Services? Factors would include: Cost, performance, ease of update. I need to clip a large and very detailed .shp file in QGIS showing environmental data similar to a temperature map. Is there something like the very simple crop tool alike in photoshop where you can … Im currently using default simple symbol capabilities or dingbat fonts for point objects. Is there maybe a SVG symbol library for qgis that is a bit more extensive than that which is included? I’ve … I have a raster dataset in ASCII format. Using Python, I need to determine the min and max values inside the dataset. I’ve been told that the header information is key, which contains things like … I’d like to do a GeoJSON dump of a PostGIS table, but I want to export features (the geometry and the properties) not just the geometry. I’ve been digging into the ST_AsGeoJSON function but it looks … Source.