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The Living Wage Map shows the gap between the minimum wage and the actual real cost of living in every county and major metropolitan area in the U.S. أكثر...

The Living Wage Calculator shows the enormous gulf between the minimum wage in and the cost of living in Philadelphia. أكثر...

Esri interactive map provides an overview of a handful of NCAA stadiums. أكثر...

Rapid growth in several cities along the Pearl River Delta has made a Chinese megacity larger and more populous than any other urban area in the world. أكثر...

I am trying to write a python script that would allow me to download data and copy it to a file geodatabase. The script currently downloads and extracts a zip folder from a FTP site. Ideally I would like my script to then copy the extracted shapefile into a geodatabase. The workspace in which...

I have a number of 95% isopleths (polygons) that represent animal home ranges. For each isopleth, I and want to calculate the Area (sq km) above 2000 meters. My initial thought was to create contours from regional DEMs but because the lines do not close to form polygons, I am unsure how to...

Would you like to create your own customized distributions with gvSIG? Do you think that the gvSIG distribution should include symbol libraries by default or pre-installed additional functionalities? Do you need an adapted gvSIG in your organization? Now we present … Continue reading → أكثر...

The Massachusetts State Data Center at the UMass Donahue Institute is hosting free in-person data training from the U.S. Census Bureau on September 21, 2015 in Hadley, MA.* This event will feature two sections, a morning session focused on the 2012 Economic Census and the OnTheMap data tool for...

I was recently given a document showing the UTM zones as they appear over the whole Earth. Each zone is 6 degrees longitude by 8 degrees latitude. A numbering system proceeds from 1 to 60 from -180 degrees longitude eastwards, and a lettering system proceeds northward from "C" at -80 degrees...

So I am using the trace tool to complete polygons. The problem I am running into is that the trace tool will run along my grid lines. This is easily avoided if the polygon is easily distinguishable from the grid line but if my polygon crosses a grid line at say 1-5 meters and I am...

I have two layers (one is shapefile, and one as lon/lat coordinate) of map data in Arcgis. Both set to GCS_North_American_1983; and datum as D_North_American_1983. Why is this and how to match them? أكثر...

I would tend to utilize ArcGIS to perform surface difference between two TIN's or Terrains but my recent attempts have been too costly computationally. Instead, what I would like to accomplish is to perform a surface difference between two raw XYZ files and produce an output XYZ file. Is there a...

Accuracy difference between calculate vegetation index (NDVI) from digital number (DN) and reflectivity. أكثر...

Start-ups like Uber and Lyft have significantly impacted the public transit in many cities. The on-demand ride companies took a lot of business from taxi and limousine services. In New York companies operating yellow cabs have finally understood that they won’t win the war trying to legally...

ارجو المساعدة في الحصول على خريطة طبوغرافية لمركز كفر شكر معلومة الاحداثيات وبمقياس رسم 1 : 25000 وشكرا أكثر...

Bonjour à tous, Je récupère des couches shp auprès de différents producteurs de données et dans certaines de ces couches, le vérificateur de validité de géométries indiquent des valeurs de 150 à 200 noeuds en double pour un seul sommet. Savez-vous de quoi ça peut provenir et surtout comment...

I am developing a series of maps in ArcGIS 10 and don't have a lot of space to label the features on the map. This is why I thought I would number each feature in the dataframe through and then export the labels as a list and put them in the map legend. So a list in the following way is...

Is there any difference between directed principal component analysis and principal component analysis? If yes how (which software) can I perform the first one? أكثر...

I would like to build a bit of custom code around geonetwork where I want to reuse existing database from gn. For my usecase it would be nice if users could register on a custom site and then use the credentials as their geonetwork login. Now, instead of reinventing the wheel when writing all...

(Note to readers: Last week I promised a GeoCurrents post on secession movements and proposals for the partitioning internationally recognized sovereign states. That post is still forthcoming, but it is taking considerably more time than I had anticipated. At present, I hope to post it by the...