نتائج البحث

I am using ArcMap 10.2.2 on a Windows 7 PC. I have shapefile range data for multiple species (multiple species in one layer), and this range data is accompanied by information relevant to the species. Some of the species I am working with have discontiguous geographic ranges. If...

I have installed PostgreSQL 9.x and PostGIS 1.5/2.0 several times and have never had this problem. I just got a new CentOS 6.3 server up and running and and I have Postgres 9.3 functioning as expected. I have run yum install postgis2_93 and I can see the files in...

We are about to organize our data in a centralized spatial data system. The system would provide various services (mainly supporting ftp access, geodatabase editing, and several web mapping applications). The data we already have is sized around 15TB, is expected to constantly increase, and...

How do you manage your geospatial data? I have terabytes of data spread out over hundreds of datasets, and have an ad-hoc solution using symbolic links within projects which link back to an domain-name based archive directory for each dataset. This works mostly, but has its own issues. I'm...

لما الشعوب اتألمت حتى الحجارة اتكلمت والدنيا يومها اتعلمت إن الحجر زيّ البشر ممكن يحس وينفعل يا قدس يا أرض الجدود شعبك قريّب راح يعود ويعدي... أكثر...

instaGrok.com (http://www.instagrok.com/) أكثر...

This script should make a field for all the feature classes in a geodatabase, populate the new field with the name of the feature class it's being created in, and then merge all the feature classes together. However, when I run the code I get the success message but only the first feature class...

I have many point shapefiles that are too close together. I need to label 4 lines of data for each point. I have written the expression that shows the 4 lines of data and now the labels are overposting on top of eachother. How can I manually move the labels to another location. I have used the...

I'm trying to make a South American topography map based on SRTM data on QGIS. The problem is a visual one. If the topography contours are extracted from individual SRTM tiles, it results a little straight line connecting each curve from both tiles. If the tiles are merged before and then the...

We're running into some performance issues when accessing large enterprise geodatabases on a SQL Server 2008 R2 cluster. The database itself performs well and returns queries fine but presenting the information back to ArcGIS for Desktop 10.1 is prohibitively slow. Connection is direct...

I'd like to quantitatively measure the display performance of mosaic datasets, image service layers, raster layers, feature layers, etc. in ArcMap 10. How can I measure the draw time of a particular layer (or the complete drawing process if that is the only option) in ArcMap? What are the...

QGIS has a powerful print composer that allows users to create complex maps very quickly. Two common practical examples include creating: 1) side-by-side (or multiple maps) on the same canvas/layout and 2) a map book or atlas. This week's video looks at these cases...

Using ArcGIS Online webmaps, you can enable a popup for a tiled map service by selecting a feature layer either currently in the map, or providing a url to the feature layer service. Is there a way to do this using Javascript API? I am currently testing the CMV application but I need the popup...

In the following how would I customize the popup options? I want to add in the option for the keepInView to be true. var myLayer = L.geoJson(polygon, { onEachFeature: yourOnEachFeatureFunction}).addTo(map); function yourOnEachFeatureFunction(feature, layer){ if...

How do I get the geojson format of Alaska, Guam and Puerto Rico in different sizes ? The sizes I have for Alaska is too large and too small for Guam and Puerto Rico. I'm very new to mapping technologies. So I'm not aware of any tools that will allow me to resize these polygons to put it on my...

I have a shapefile with polygons of areas and I want to calculate the total number of hectares. I added the function for calculating geometry but when I try to link it with summary statistics function for calculating the area sum and mean it is impossible for me to link this functions together.I...

حمل من هنا

حمل من هنا

حمل من هنا

حمل من هنا