Sep 162012
 

OpenStreetMap has updated their satellite imagery covering parts of Arusha and Serengeti. The imagery is delivered by Bing (Microsoft) and allows for tracing of roads and buildings in the mentioned areas. Microsoft has updated much of their imagery covering Tanzania the last year. The additions covered in this article represent important foundations for further developing the OpenStreetMap maps.

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May 302012
 

Hillshades are made by processing georeferenced digital elevation models. The process places a virtual light source above an elevation model and calculates which areas are lightened up and which fall in the shadow. Light characteristics, vertical/geographical source will be determinant for the hillshade.

Some years ago I prepared a hillshade model for Tanzania. It was fun and before I knew it I had prepared elevation models for seven more countries.

This article points to a file gallery where the files are available for download. Continue reading »

May 252012
 

Several times the last months we have suggested GIS-users start using OpenStreetMap data. But we have failed to say where you can find the actual files. They are of course available for download.

In this article we will give an overview of where you can download shapefiles based on OSM data and also how you can contribute to the project. Continue reading »

May 212012
 

OSM map of centre of Dar es SalaamOpenStreetMap (OSM) and Google Maps (GMaps) each have their strengths and weaknesses (have a look at GIS.stackexchange.com’s recent discussion on this).¬†Probably the biggest advantage for us is that OSM can be edited quickly, and the road data used directly (download to GPS or for your GIS system directly). Click below to read more.

 

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Apr 102012
 
Tarangire in OpenStreetMap edit mode the 10th of April 2012

Tarangire in OpenStreetMap edit mode the 10th of April 2012

This posting is about OpenStreetMap and how Microsoft thorugh Bing Maps contributes to establishing a good open data basemap all over the world. But it is also a modest request for more of the good stuff. The Tanzania coverage from Bing Maps is poor. I am hoping it can become better.

It’s been almost 20 years since I worked as a localizer for Microsoft Worldwide Product Group in Dublin, Ireland translating software and documentation from English to Norwegian. Way back then I took part in translating Windows for Workgroups (Windows 3.11) and Word. Bringing software to the people is hard work. Microsoft and it’s owners have prospered throughout these years making profits and contributing to technological breakthroughs. Supporting OpenStreetMap is one of many ways Microsoft is contributing back to society. Continue reading »

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