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    QGIS How to use Query Builder with a Joined table

    When I join a layer with another layer all the attributes are correctly displayed in the first layer. However when I use the Query builder (Layer - Query) and then use Zoom to layer, nothing is displayed. sgrieve - thank you for you guys taking the time to help us newbies.I have added a vector...
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    Why Spatial Analysis

    Spatial analysis is how we understand our world—mapping where things are, how they relate, what it all means, and what actions to take. From computational analysis of geographic patterns to finding optimum routes, site selection, and advanced predictive modeling, spatial analysis is at the...
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    Shaded KML overlays on OSM tiles in QGIS?

    This seems simple - but the solution is escaping me. I have a series of dynamically generated KML files describing simple, shaded polygons, with each polygon having a slightly different (externally calculated) color and transparency. After import, all features not contained within a polygon...
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    Reproject X-coordvalue in Shapefiles

    I hope I do not reask my question - I tried to ak it yesterday but am sure I didn't post it correctly. I convert Bavarien NAS-Data (DHDN 3 Degree Gauszone 4) via ogr2ogr into shapefiles: "C:\Program Files (x86)\QGIS Wien\bin\ogr2ogr.exe" "ESRI Shapefile" -skipfailures Entenhausen.xml...
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    Google earth elevation data

    I have a polyline in google earth. I want the elevation data (say in excel). I am able to see the elevation profile in google earth when I move along the polyline but Is there a way to extract the lat,long and elevation data in an external software? (say ArcGIS or excel) Any help is...
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    Ohio’s Shale Oil and Gas Firms Disappoint Shareholders

    By Ted Auch, Great Lakes Program Coordinator A financial crisis seems to have been averted as the price of crude oil is beginning to stabilize – at least for now. One must wonder how such a volatile market affects oil and gas’ Wall Street, private equity, and pension fund followers, however. We...
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    My Very Own Brown Bin

    By Sophia Kelley #BrownBin in Brooklyn I was elated to see a flyer in my mailbox from the NYC Department of Sanitation this week. Why? Because it said that my building would be one of the 35,000 new households to be part of the city’s expanded organics collection pilot program. In other...
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    Where can I find GDAL Python bindings for python 3.4?

    Am using python 3.4 for development. I need GDAL python bindings for python 3.4. I have already gone through this site. I can find up to only 3.3? أكثر...
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    What is the difference between ArcSDE and ArcGIS Server?

    I have been working with ArcGIS Desktop where I use ArcMap for doing GIS work. Can anyone please explain to me in simple words What is ArcSDE and ArcGIS server? These can be independent dedicated server machines? Any simple and full explanation on this is most welcome. أكثر...
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    واحدة من أسرع آلات الصب gt-3600

    الآلة GT-3600 من شركة جوماكو GOMACO هي آلة شهيرة متعددة الاستخدامات تقدم خدمات متنوعة حسب الحاجة بكل ما يتعلق بعملية تنسيق الشوارع والأرصفة. و توفر الكثير من الوقت والجهد وبدقة تنفيذ مرتفعة تغني عن استخدام الكثير من التقنيات التقليدية. وقد أثبتت كفاءتها في العمل على مستوى العالم، حيث تم تصميم...
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    NETGATE Registry Cleaner 9.0.305.0 Multilingual

    NETGATE Registry Cleaner 9.0.305.0 Multilingual | 8 MB NETGATE Registry Cleaner cleans and defragment your registry, speed-up your PC, removes unneeded files on disks, removes activity traces. It includes Startup manager to manage programs started at Windows startup and Uninstall manager for...
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    H2GIS and POSTGIS

    i use postgis and h2gis and i have tested ST_Transform function on both systems: SELECT ST_AsText(ST_Transform(ST_GeomFromText('POINT('||to_char(5873455.6,'9999999.99')||' '||to_char(445588.07,'999999.99')||')',25833),4326)) on postgis i get the following result POINT(58.4155109850716...
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    Converting Map Files to KML Overlay

    Had a quick look around and didn't quite see what I've been looking for. I've got a .Net Web Application that is going to accept different map files and I want to convert everything over to KML so all of the different maps can be displayed in the same way. We are going to be accepting KML/KMZ...
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    How to copy an SDE geodatabase to a file geodatabase using Python?

    I would like to make an exact copy (domains, feature datasets, feature classes, etc.) of an SDE database to a file geodatabase. I have tried several possibilities, including: using the Copy (Data Management) process creating a new GDB and manually copying each feature dataset fromthe SDE...
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    Change color of feature (active cursor row) with ArcPy

    I have a selection of polygon feature and with a cursor loop I walk through them. I determine the extent of eachfeature and arcmap will zoom to the feature. My default selection color in ArcMap is light-blue. So the whole selection is light-blue. After determining the extent of each feature I...
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    Water Resources Layers on ArcGIS Online

    Esri’s hosted content on ArcGIS Online now includes five new layers to use in your water resources maps and analyses. USA National Hydrography Dataset – High Resolution (USGS) USA Watershed Boundary Dataset (USGS) USA Polluted Waters (EPA) USA Polluted Waters – Heavy Metals (EPA) USA...
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    Reusing tiles between zoom levels of Leaflet?

    I have a Leaflet map with a GeoJSON Tile Layer and a custom backend for serving geoJSON tiles. The geometries returned from the backend are simplified depending on the zoom level, but within certain bins of zoom levels (1-3, 4-6, etc) the geometries are identical. Right now, new tiles will be...
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    How merge osm files with same ID objects?

    How merge many OSM files with same ID(between files) to one OSM file? I trying OSMCONVERT but he not add object with same ID in other OSM file. أكثر...
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    Re-name using first letters of feature class name [on hold]

    I have several feature classes and I want to rename them using the first letters of every word in their name (Proposed_Road_Network -> PRN) with python but I do not know how as I have very limited experience with programming. Can anyone help me? أكثر...
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    ArcGIS 10.1: confused as to the use of OFFSETB in viewshed analysis

    I am confused by the description of OFFSETB in wiewshed analysis (ArcGIS 10.1). The help documentation says "The OFFSETB item indicates a vertical distance in surface units to be added to the z-value of each cell as it is considered for visibility". Still, to me is rather obscure. I understood...
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