Hi, I find a "planet.gpx" is being offered but with only GPS points. I understand that this is helpful, and appreciate the efforts in generating this file. However, many people (like me) need GPS traces instead of individual points, and I personally prefer to see the associated descriptions too. Is it possible to compress all uploaded .gpx files and offer this large file for download? Identifiable traces are sufficient, if privacy is a problem.
Alternatively, is it possible to offer the planet.gpx like this: 450000000,450000000 450000001,450000000 450000002,450000000 910000000,1810000000 330000000,660000000 330000000,660000001 330000000,660000002 In this way, we know that there are two traces, one of which is near 45N,45E while the other is near 33N,66E. Note that "910000000,1810000000" is not realizable and is used as a seperator. To save space, I also suggest to use two 4-byte integers to store the coordinate pair. The maximum value 1810000000 is within the limit of a signed 4-byte integer, which is 2147483647. According to the stats, there are 2811827999 uploaded GPS points, and each point takes only 8 bytes in this way - that is 22GB binary file instead of 55GB text file now. Thanks, Ruogu Ding (丁若谷) King Abdullah Univ. of Sci. & Tech. +966-562609061 ruogu.d...@kaust.edu.sa _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk