May 28, 2023
by chris
1 Comment
I have – after many years – made an update to the generalized map rendering demonstration on maps.imagico.de. Since i have first shown this demo i made several improvements to the underlying generalization processes, some of which i have discussed … Continue reading
September 1, 2017
by chris
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Some readers have already been waiting for this – i have now completed my initial review of the ArcticDEM elevation data set which is being produced and published in several stages during this year by the University of Minnesota and … Continue reading
August 5, 2016
by chris
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When NASA after the SRTM (shuttle radar topography mission) in 2000 released the first SRTM data (the latest version of which i reviewed previously) this was for large parts of the wold the first detailed relief information available at all … Continue reading
November 21, 2015
by chris
2 Comments
Relief rendering is one of the key elements of my maps and the generalized shading used is a fairly unique feature among digital maps available today. I developed some improvements in this field i want to introduce here. Shaded relief … Continue reading
August 19, 2015
by chris
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Recently the USGS released the last part of the SRTM i second data set. I updated the elevation data search tool to include that – you can now find all 1 arc second tiles available there, just check Global SRTM … Continue reading
June 20, 2015
by chris
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Digital elevation data is an important basis of map production and geodata processing these days. I have written about elevation data sources and use of such data previously on several occasions. SRTM data is the most widely used elevation data … Continue reading
November 27, 2014
by chris
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After the initial release of data for Africa the USGS has put up more full resolution SRTM data for Europe and America – still missing are only Asia and Australia. I updated the elevation data search tool accordingly.
August 11, 2014
by chris
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Earlier this year i showed some examples how shading information in satellite images can be used to improve elevation data with additional details. Since then i have occasionally been looking into how such techniques can be also used outside polar … Continue reading
July 1, 2014
by chris
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Map design and Geo-Visualization is to a huge part about abstraction. To illustrate this here is an example from my standard demo map from the Western Alps and a 3D perspective view of the same area. These two illustrations make … Continue reading
May 24, 2014
by chris
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When updating the demonstration map recently I have made some changes to the standard style, most notably the bare ground color in the landcover style is now modulated based on climate with more reddish color in the warm desert regions … Continue reading