نتائج البحث

In my JS API app I have a function to export some features into an image through ExportImage REST API operation. So I need an extent, but I don't want to zoom on it, I simply compute it from the geometry: var extent = esri.graphicsExtent(featureSet.features); Problem is that some of the...

I have a set of x,y coordinates, each of which I'm trying to get an elevation reading for. The elevation data source, however, is not a regular grid, but consists of a shapefile containing scattered, irregular points, as this QGIS screenshot shows: I'm used to using grid-based files...

I am trying to make a QGIS model which includes an "Extract by Attribute" algorithm. One of the inputs for this function is the liminar value, simply called "Value". For some reason though, it is only possible to explicitly state that value, and not use a number variable that was inserted into...

How can I add multiple stats from the arcpy.Statistics_analysis to a single output file. Can I create a text file instead of a table ? Using one of the examples in help.arcgis, if I add other stat analysis, what is the best way to work with the output? import arcpy from arcpy import env...

So I want to convert KML files to SHP shapefiles to load it onto PostGIS. Currently I'm using ogr2ogr to do the conversion for me, but it wipes out all the attribute data. How do i preserve this attribute data in the resulting shapefile? Any better feature out there? أكثر...

I need to calculate the surface (m2) of external walls of all the buildings in a town.By external walls I mean all the walls of a building or parts of a wall which are not in contact with another building.I have a 2D shapefile of polygons with the cadastral footprint of the buildings, which...

I am new to deal with OSM data, and I want to download only .osm files not .pbf. I tried geofabrik.com but it provides .osm.pbf file format where can I download .osm files? is there any recommended way to convert .osm files to .xml? أكثر...

Im trying to get my openlayers map onto fiddle but it doesnt run. http://jsfiddle.net/feb2qkqe/4/ In my fiddle im taking data from a json object in the js file but jsfiddle shows error accessing the json nodes. The same works fine in my pc as static html pages attached project (run with...

I'm trying to divide a polygon in smaller polygons from a line, but I think I can't use the st_split function. What I need is to create small polygons inside a big one, using linestring grid. I've tried some ways, but I can't get the result. What I've tried: Divide one polygon from a...

I ran a Geographically Weighted Regression (GWR) model to find out, in which local regions my independent variables have a strong, moderate or weak relationship. After doing so, I only want to focus my further analysis on regions with a strong relationship, but the GWR tool in ArcGIS does not...

I was using Google Maps with OpenLayers plugin in QGIS with my vector layer with projection EPSG:4326 with google map projection EPSG:3857 and "on the fly" transformation enabled. It was matching all the vector layer with Google Maps but now it's not working. How can I reproject Google...

Back in 2006 Frank wrote a post about a couple of Google Earth animations of toys being built in Google Earth. If you haven’t seen them before, try them out now: A toy aeroplane built from “Legos™” by ‘barnabu’ A log cabin built with “Lincoln Logs™” by ‘jpwade’ They are both time animations so...

Crear Rutas: Compartir Rutas: Mostrar medidas: Segmentaci أكثر...

Bonjour, Je travaille sur un réseau routier. J'aurais besoin de fragmenter chacune de mes routes en tronçons de 1km. Plus exactement, chacune de nos routes comportera un buffer, prenant ainsi en compte le bas-côté de la route. C'est plutôt ce buffer longitudinal que nous aimerions...

We use ArcGIS 10.3 products (Server, Desktop) with Oracle database. Our problem is we can not make any schema changes because of shared schema locks unless we stop all services and kill all database connections. Even though we disable "Lock database schema" option for services, there are still...

Terabytes and petabytes of frequently captured geospatial Earth Observation data (e.g. high-resolution satellite imagery, aerial photos and LiDAR point clouds) need to be processed in a highly efficient manner. How much information can we extract from such data? How can we turn the Geospatial...

I want the output file names of the raster split tool (ArcGis; http://resources.arcgis.com/en/help/main/10.2/index.html#//00170000009v000000) to carry a specific attribute (not FID) of the polygon I used to split the raster file. How can I achieve this? أكثر...

Does anyone know how to draw splines in Excel 2013. Have tried this and googled without success. http://www.srs1software.com/. أكثر...

I have generated 2dm grid terrain mesh file using SWMS for BASEMENT. I want to use the same terrain file in 2dm format in HEC-RAS for 2d modelling. Is it possible? If not please guide me in which format i can change my 2dm terrain file which is supported by HEC RAS. Thanks أكثر...

I know how to query OpenStreetMap using Overpass Turbo for all points/polygons from with "school" string in their name ( node["name"~"^.*school.*$", i]({{bbox}}); way["name"~"^.*school.*$", i]({{bbox}});); I'm looking for the correct way to query point/polygon elements that are name=*...