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Bonjour tout le monde! J'aurai besoin de votre aide pour la manipulation de QGIS. Voici mon probleme, lorsque j'essaye de convertir un fichier raster en vector j'obtiens le message erreur (Désolé c'est en allemand ou anglais - *"The "Layers" command is either misspelled or could not be...

One of the resources that I frequently use in instruction, and make publicly available in the hopes that it will be useful to other teachers and learners of GIS, remote sensing, geography, STEM, field methods, environmental studies, and related fields is my video channel, Geographyuberalles, or...

I am developing an OpenLayers 3 web application were I would like to incorporate multiple layer selectors. Instead of manually adding each layer to a layer selector I would like to do it using the method below. I have this JSFiddle set up that it has a map with multiple layers and one Layer...

Preface: I'm unsure if GIS or math is the correct community for this question. I have a set of 8 WGS84 latitude/longitude (degree) pairs for which I need to find the weighted average of. To prevent things like the dateline causing massively warped averages, I'm converting from WGS84 into...

Within the QGIS Web Client, how does one enable the sublayers of Map Layers to be exposed? On my QGIS application, I have created a QGIS project file comprised of a chloropleth map (or a graduated map or a thematic map) which shows each map object in a different color based on a specific...

im trying to change from a .net toolbar to a python toolbar in ArcGIS 10.2 and am having some difficulty. I have some stand alone python script which i know works and does what i need to do but i cant work out how to get the add in button to call this script or how to incorporate the script in...

I am creating a thematic map (vector data) with different classes. How to convert this vector map to a raster map, keeping the classification? أكثر...

I have used ITopologicalOperator for getting common Area of two polygons but the result is not correct. May anyone please tell me how to get the common area of two features. //Make Topological operator of geometry here ITopologicalOperator pTopoOperator = (ITopologicalOperator)pGeometry...

Bonjour ! Je vous contacte pour avis Je voudrais importer un shapefile dans une table déjà existante sur Postgresql 9.4 (Postgis intégré) sous windows. J'ai lu qu'il fallait que j'utilise shp2pgsql. Du coup, je suis allée dans les variables d'environnement pour mettre à jour mon path...

I'm working on a web application that uses Bing Maps. I'm having some trouble with infoboxes. I have infoboxes which are created simply like this: infowindow2 = new Microsoft.Maps.Infobox(new Microsoft.Maps.Location(0,0),{visible:true,});infowindow2.setOptions({offset:new...

I want to animate a shapefile that has a timeline (DATE) attribute using QGIS.The [TimeManager] plugin (http://anitagraser.com/projects/time-manager/) has been installed and provides sufficient control to step down the dbf rows as expected. However, the simple on/off display of each frame's...

I'm new with arcgis. I need to round coordinates on precision of 2 decimals while maintaining relations between them. So basically I need to make something to be equivalent of ST_SnapToGrid(geom, 0.01) from postgis. Can anyone help me with workflow? I use arcgis 9.3. أكثر...

I just uploaded a new photo but it has yet to show up. I applied the query again in cartodb but still does not show. Shouldn't it be syncing automatically? And how long should it take using a free account? Sincerely,Jay أكثر...

I need to do a count of a 100 fields and I am searching a expedite way to do it. Instead of selecting one by one, I imagine there is a way to do it. Does anyone can help me? Thank you! أكثر...

Prequesites I have vector data in a Shapefile N47E007_CONTOURS.shp produced with wget -O N47E007.zip http://e4ftl01.cr.usgs.gov/SRTM/SRTMGL1.003/2000.02.11/N47E007.SRTMGL1.hgt.zipunzip N47E007.zipgdal_translate -co "COMPRESS=LZW" -of GTiff N47E007.hgt N47E007_WGS84.tifgdalwarp...

I have a column named position with geo data.Query: SELECT ST_SRID(position) FROM checkpoint LIMIT 1;returns 4326 If I try to simplify/compress points with SELECT st_dumppoints(st_simplify(st_makeline(points.position)), 0.005))).geomFROM (SELECT position FROM checkpoint) AS pointsit...

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what is the script for pdf file hyperlink for a diffrent polygon diffrent pdf in q gis.and whenever we open that file any computer that time they not say create again script and path. أكثر...

Bonjour ! Je vous contacte pour avis Je voudrais importer un shapefile dans une table déjà existante sur Postgresql 9.4 (Postgis intégré) sous windows. J'ai lu qu'il fallait que j'utilise shp2pgsql. Du coup, je suis allée dans les variables d'environnement pour mettre à jour mon path. Et...

How can pdf file hyperlink in q gis for a diffrent polygon diffrent pdf and open in any computer without change the path...... أكثر...