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Thanks to the answer given in this question I have been able to subset and draw a map of electoral divisions in part of the UK, in this case Pembrokeshire. The resulting data frame is large and contains Ordnance Survey data so it would be difficult to post here, but the data frame looks like...

By Gina McCarthy Just two weeks after the EPA was established in 1970, our first-ever Administrator, Bill Ruckelshaus, issued a statement calling the birth of our agency the start of America’s “reclaiming the purity of its air, its water, and its living environment.” Just last week, 45 years...

There is a new player in the “lidar in the cloud” data processing marketplace. From this press release they comment: GeoSignum Pointer web platform allows users to access, manage,... Click Title to Continue Reading... أكثر...

In order to create walking lists for a volunteer campaign I have used qgis to draw polygons over groups of addresses. These are irregular areas, so I've used postgis's ST_ENVELOPE function to generate rectangular bounding boxes for these areas. I am looking for way to automatically generate...

Bonjour, Je désire géoréférencer d'anciennes cartes topographiques 1:20.000 de plusieurs communes de Belgique. Ces cartes ont des coordonnées exprimées dans le système de référence de la projection de Bonne belge, calée sur l أكثر...

I'm doing atmospheric corrections on RapidEye images in PCI Geomatica 2014 ATCOR. In the final results there are salt-and-pepper type errors in RE band 4 and 5. These errors only occurs when haze removal is do as part of ATCOR. However, I would really need to do the haze removal as part of the...

با عرض سلام و احترام ببخش أكثر...

I have a problem converting a .asc DEM data that I have to work with. When use the ascii to raster tool in ArcGIS 10.1, instead of converting my file to a GRID raster, ArcGIS converts it into a AIG dataset. (I don't write any extension for the output, following the ArcGIS help to have a GRID...

I used GWR to find out which independent variables lead to crime and how they vary over the space. After a literature review, I ran a global OLS model to find the most suitable set of independent variables, then used the local GWR method. For both the OLS and GWR model I then conducted the...

I have a list with five raster stacks, each of them containing 9 layers: > models.list $CanESM2 class : RasterBrick dimensions : 23, 19, 437, 9 (nrow, ncol, ncell, nlayers) resolution : 0.5, 0.5 (x, y) extent : -57.5, -48, -34, -22.5 (xmin, xmax, ymin, ymax) coord. ref. ...

i am working with qgis c++ api 2.8.2 and qt4.8.5 i want to disable the rendering during zoom in or zoom out fonction in order to have a fast zoom i try to use : MyMapCanvas->stopRendering(); and MyMapCanvas->setRenderFlag(false); before the call of zoomIn ou zoomOut method but the...

I am trying to write a script (python) to open an external exe file on the server once I click on a feature in ArcGIS. The script must have 2 parameters in namely FacilityId and UserID. The exe file will take the parameters and write it to an SQL table where another function triggers from...

I'm doing atmospheric corrections to RapidEye images with ATCOR in PCI Geomatica 2014. However, there are serious salt-and-pepper type errors in the outcome bands 4 and 5. These errors only occur when haze removal is done as part of ATCOR. I would really need to do the haze removal as part of...

I work in electrical utilities and we have stacks of paper records that need to be updated into an existing SDE feature class attribute table. My problem is that someone in the city's GIS office would like me to create a simple interface where anyone with access can search a for a pole number...

يعتبر موقع "يوتيوب" من اشهر المواقع التي يتم مشاهدة الفيديوهات عليها وتعتبر نسبة المشاهدة جدا عالية، وفي خطوة جديد اطلق الموقع خدمة اعادة تشغيل الفيديو دون ان يكون متصلا بشبكة الانترنت. ولقد أتاحت يوتيوب مؤخرًا ميزة إعادة تشغيل الفيديوهات دون الحاجة للاتصال بالإنترنت لمستخدمي موقعها في دول عربية...

What would be the best way to share the information of a point? i.e. I help people find jobs, I have a map with 20000 jobs. They will be using a touchscreen computer. I would like them to browse jobs, if they find one, share it to themselves.ie email myself without having to open the native...

We have web-application which shows polylines on map(google maps). Currently map renders 7000 polylines(values are updated dynamically and changing style according to some value) and performance is dropped. I decided to generate map image due performance issue. Some time ago I built a offline...

Hi I have a question regarding the Con statement when used in the SA Raster Calculator. I am reclassifying a raster (categorical, integer) based on my own mappings but also on another raster (for some of the classes). So example I have...

I have added data (e.g. name keys) to my OSM PostgreSql database. How can I update my database without deleting or overwriting this data? In other words, how can I merge newer OSM data to my existing database without lost my additional data? أكثر...

I'm trying to create a checkout replica of some feature classes from an ArcSDE geodatabase to a file geodatabase using ArcObjects. I'm trying to follow this: How to create a replica in a connected environment, but I'm getting an ArgumentException when calling CreateReplica with the following...