نتائج البحث

Various network data standards (such as those used by Open Street Map, pgrouting) employ "nodes for junctions, intersections for bridges/tunnels" rule. That is to say, links are considered disconnected if the merely intersect but joined if they have coincident endpoints. Other standards use a...

I'm a newbie using QGIS 2.12 and I'm trying to split a line in QGIS and place points every x meters. There is a tool in ArcGIS (divide by length add in). How to achieve this in QGIS? Thank you أكثر...

I need to show the entire world, but my map is very small at the zoom level 0 and 1. As a result it leaves white gaps and looks ugly. Is there any way to tell the map to auto-fill the white area with map repeation ? I am using tiled layers. أكثر...

I have noticed answers such as Is there an open source tool to planarize graphs? stating you can use GRASS v.net from within QGIS. However I can't see it - my QGIS processing GRASS toolbox contains 160 algorithms, none of which are v.net. Am I looking in the wrong place, or has it been...

How to replace a string with a variable inside a pgsql2shp command in Python command = "pgsql2shp -f /test.shp -h localhost -u postgres -P postgres gis_exercise \"SELECT d.latitude, d.longitude, d.geom FROM country AS c, daily AS d WHERE ST_CONTAINS(c.geom,d.geom) AND c.iso3= 'BRA'\""What I...

I have list of 50 lists of pairs of SpatialLinesDataFrames. That means I have something like: [[1]] [,1] [,2] [,3] [1,] spldf1 spldf3 spldf5 [2,] spldf2 spldf4 spldf6 [[2]] [,1] [,2] [,3] [1,] spldf1 spldf3 spldf5 [2,] spldf2 spldf4 spldf6...

Re: Concatenating field values At my DBF i have many fields. Example: Field1, Field2, Field3, Field4, Field5 I have to show on label the result of "Field2 + ' - ' + Field4". Besides that, I need to cut left and right chars from the string (Left() and Right() functions). Example: Fie... أكثر...

يسر مركز المجد للجودة وتطوير الموارد البشرية الاعلان عن دورة : *_دورة المهارات المتكامله في ادارة التدريب وتدريب المدربين (_**_(TOT_* ... أكثر...

يسر مركز المجد للجودة وتطوير الموارد البشرية الاعلان عن دورة : *_ادارة العلاقات العامة وفن التعامل مع كبار الشخصيات (_**_VIP_**_) _* ... أكثر...

I'm using Leaflet js and I want a user to be able to add a single point to the map (and not get trigger happy and add lots of pins), what do I need to do to modify the below so that this can happen. map.on('click', function(e){ var Marker = L.marker(e.latlng,{ draggable: true...

My system is Windows 7 with PostgreSQL 9.4 and PostGIS 2.2. I'm running shp2pgsql program from command line (cmd window, not PSQL interface). shp2pgsql "D:\file.shp" schema.table > file.sql I'm getting the following error message (sorry this is in french but it says System error: the...

I would like to create a realistic map of a fantasy world to have an overview over the world. Now I search for a suitable editor to draw the map from scratch. One of my continents starts at the South Pole and runs to the equator. So I search for an editor where I can draw the map on a sphere...

I'm developing a WPF application. One of my requirements is to have polygon borders drawn with a dash-dot-dash style. Is there a way to accomplish that in the client side? So far I've tried: var graphic = new Graphic(); graphic.Symbol = new SimpleFillSymbol { BorderBrush = new...

South eastern India has recently experienced major flooding. The floods have been caused by a combination of unusually high rainfall and a number of human factors including unplanned urban development on former wetlands and other natural sinks and possibly poor reservoir management. As they...

From geodatabases to PostGIS, spatial databases have quickly become the primary method of managing spatial data effectively in a GIS. [...] The post Spatial Databases – Start Your Spatial Data Empire appeared first on GIS Geography. أكثر...

Maplogic layout in arcgis - how to show only selected features from layer(s) in specific grid?I have field with page number from grid layer linked to specific polygons which i want to show in specific grid. أكثر...

I'm new to QGIS. I have two raster layers created from ASTER DEM data. I have one for slope and want to create a binary layer where only pixels between 8 and 60 degrees are included. I've tried "Nepal_Mosaic_Slope@1" >=8 and "Nepal_Mosaic_Slope@1"

Many examples on gis.se that refer to gdal_calc give a boolean example.example 1example 2 If I need to calculate a conditional statement on a float: If Raster_Value >= 1024, then 1024; else Raster_Value.How do I perform that operation in the gdal raster calculator command line EDITI tried...

We have 5 "Master" shapefiles(A, B, C, D & E). Each will have different table structure. We have 100's of shapefiles which has features which has to go to A,B, C, D & E. We have a column in all those 100's of shapefiles, like Column Name: Master & it's values are A,B,C,D,E. Is it possible to...

What is the best solution to publish postgis rasters using Geoserver? I have spent a lot of time trying to create a Raster datasource using Image Mosaic JDBC but with no luck. Steps performed: 1. Downloaded and Installed the JDBC Image Mosaic extension (worked ok) 2. Created the "Connection...