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Bjørn Sandvik
807 followers -
Owner of MasterMaps and author of thematic mapping blog.
Owner of MasterMaps and author of thematic mapping blog.

807 followers
About
Bjørn Sandvik's posts

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Creating TINs in SAGA GIS
This blog post is part of  an ongoing effort to find the best open source tool for  Triangulated Irregular Networks (TINs). Nathan Saylor recommended me to try SAGA GIS , which has various tools for TINs . I've never used SAGA before ( here is a quickstart ...

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Creating a TIN from a raster DEM
NB! This blog post will constantly change until I find a good open source solution to create a TIN from a raster DEM. Would you like to help? Please add a comment below! People have already helped greatly on Twitter, and I'll include some of these suggestio...

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The history of the Telemark Canal - projected on a physical landscape model
Earlier this year, we were three entrepreneurs creating a new startup - Norviz . Our main focus so far has been on projecting animated graphics onto physical landscape models. Our first job was to tell the history of the Telemark Canal , a beautiful waterwa...

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The history of the Telemark Canal - projected on a physical landscape model
Earlier this year, we were three entrepreneurs creating a new startup - Norviz . Our main focus so far has been on projecting animated graphics onto physical landscape models. Our first job was to tell the history of the Telemark Canal , a beautiful waterwa...

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Hiking with OpenStreetMap
OpenStreetMap is not only for streets, it also contains an impressive amount of hiking trails. I’m currently planning a a week’s hike in June, crossing the Alps from Obersdorf to Vernago. How can I extract the route from OpenStreetMap and use it on my GPS? ...

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Trekking in the Rwenzori mountains to Margherita Peak 5109 m. 
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Rwenzori
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Mapping a real time snow cover
Norway is a country with huge climate variations between seasons, lowlands and mountains, coastal areas and inland, and between north and south. In the recent years, we have also seen more extreme weather and greater fluctuations in temperature and snow cov...

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Mapping grid-based statistics with OpenLayers, D3.js and Three.js
I've just finalised two mapping tutorials on mapping grid-based statistics. The tutorials are in Norwegian, but the source code is available in English, and should be easy to follow. Tutorial 1: "Grid-based population data" Mapping grid-based population dat...

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Mapping the Arctic sea ice
There as been a lot of attention about the diminishing Arctic sea ice in recent years. We’re often exposed to images showing the extremes. My goal was to show the changing sea ice month by month , and even day by day . The sea ice cover in the Arctic in Sep...

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Freelance mapper
I’m going freelance over the summer, after 5 great years at the Norwegian Broadcasting Corporation (NRK) . It was not an easy decision, but I have to try. I’ll tell more about my plans later. I’m also available for hire if you need help on your mapping proj...
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