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Hello and any help appreciated. Is there a way or someone has a script to export attachments stored as "blob" in a personal geodatabase? Thanks in advance أكثر...

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I have a GeoTIFF DTM produced from Agisoft Photoscan at 0.05 m resolution. However the interpolation used by the program to remove the riparian vegetation has used points from the channel, thus effectively creating a ramp which is not accurate of the channel. I've clipped the target area and am...

I am working with BIOCLIM temperature/precipitation layers and I have noticed that when I clip the global raster down to a specific region, something happens and the raster value at a specific point no longer matches that on the global raster. Here is my working procedure: Download bioclim...

I'm using QGIS-2.4.0 API to develop a standalone app by C++. I saved a test.qgs file in QGIS Desktop software, in the project, there was one layer and it was visible. Then I loaded the test.qgs project file in app, but there is nothing showed. Why is that? The code I'm using to open the...

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In QGIS Expression builder. I want to obtain the color code of the current feature. I mean: My layer contains lines, each one is painted with a different color. Now I want to assign that color to its label. In label definition, in the color property's expressions builder, how could I obtain...

How to display different symbols (not different in size, different in shape and color) on the same point in QGIS 2.8 using Point Displacement renderer? I want my layout with symbols around the centroid of areas, and symbols from rule-based renderer. For some reason it seems QGIS forces all the...

I am using QGIS (before, I used ArcView). I would like to know if there is any way during the editing phase of a vector (line or polygon) to know the length of the line (total and partial) that is being created. Thanks. أكثر...

In this lesson I will show you how to download OSM data in QGIS and create a production-ready map in minutes using the QuickOSM plug-in. You will learn how to • Load in an OpenStreetMap layer • Download a .osm file of the area you want • Use QuickOSM plug-in to create your vector layers ... أكثر...

I have a raster file with two categories: category 12 (total count=350) and category 14 (total county = 500). The attribute table looks like this: rowid Value Count 0 12 350 1 14 500 Is there any way I can give all pixel a value of 1? أكثر...

I am parsing an Openstreetmap gpx file which I exported from here. I'm trying to put the data into arcgis geodatabase feature classes. Some of the features in the gpx are points (saved as wpt), while others are polygons (saved as trk consisting of trkpt's). Using the script below, I am succesful...

*السلام عليكم و رحمة الله و بركاته** يسر مركز الخبرة الحديثة للتدريب و الاستشارات (METC) بالتعاون مع المعهد القومى للقياس والمعايرة(NIS) ان يقدم... أكثر...

We work with a combination of dojo Vers 1.10 and ArgGis Javascript APi 3.11. We were asked if it ist possible to copy the TOC Layerlist into a seperate dojo FloatingPaneby rightclicking into the map. No Problem so far. Now i should insert two Buttons which should a. disable all active...

I currently know the following open source GIS servers: Geoserver: java based, vector and bitmap support, also supports. Is now on par with mapserver (performance-wise). mapserver: c/c++, used to be the fastest server. Better for raster than vector? mapguide: do not know this mapnik: the new...

Bonjour à tous, j'utilise QGIS et son outil de statistiques de zone pour importer la moyenne des valeurs des pixels (hauteurs d'eau) contenus dans des polygones (morceaux de bâtiments). J'ai pour cela préparé en amont un raster qui ne présente que des valeurs de pixels positives (min...

السلام عليكم ورحمة الله وبركاته يتشرف مركز الخبرة الحديثة للتدريب والاستشارات ان يقدم لكم برامجه المتخصصة في اقوي الدورات التدريبيه التي يحتاجها... أكثر...

I have used 'ogr2ogr' for ESRI shape files conversion to Mapinfo tab files, but issue is that as soon as I open those converted .tab files over Mapinfo, the software stop working with a message MapInfo Professional has stopped working, Close the program. Please help me out with the solution...

I'm new to Esri's Arc* interfaces, and trying to figure out how to register an existing table using the ArcObjects API. The following question answers this to some extent: Is there any way to write a snipet of code with function of "SDELayer -o register" command Maybe the...

When attempting to batch project in ArcGIS 9.3 or 10 (using either arcpy or arcgisscripting), I cannot get my geoprocessing results to drop into the feature dataset that I specify. The results instead are dropped in the root of the Geodatabase (*.mdb). Here's an abbreviated version of what I...