Notes on elevation/slope
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amario
Jun 26, 2009, 10:03:07 AM6/26/09
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Click on http://groups.google.com/group/sf-bike-planner/web/notes-on-elevation
- or copy & paste it into your browser's address bar if that doesn't
work.
Louis
Jul 21, 2009, 2:16:04 AM7/21/09
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An R-tree is an efficient way to index data for spatial queries. Check
this out: http://en.wikipedia.org/wiki/R-tree
I've gotten good performance with this Java library: http://sourceforge.net/projects/jsi/
On Jun 26, 7:03 am, amario <jcrue...@gmail.com> wrote:
> Click onhttp://groups.google.com/group/sf-bike-planner/web/notes-on-elevation
this out: http://en.wikipedia.org/wiki/R-tree
I've gotten good performance with this Java library: http://sourceforge.net/projects/jsi/
On Jun 26, 7:03 am, amario <jcrue...@gmail.com> wrote:
> Click onhttp://groups.google.com/group/sf-bike-planner/web/notes-on-elevation
amario
Aug 2, 2009, 3:04:47 AM8/2/09
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As a postscript, after regenerating all the elevation data and
spending all that time trying to figure it out... turns out the
problem had nothing to do with elevation data! Was just a stupid bug
in the code that outputs final user-viewable route from the shortest
path points. See http://code.google.com/p/sf-bike-planner/source/detail?r=40
Ah well, at least it spurred some improvements in the process.
-a-
p.s. I am now a proud father! isabella is 3 days old
spending all that time trying to figure it out... turns out the
problem had nothing to do with elevation data! Was just a stupid bug
in the code that outputs final user-viewable route from the shortest
path points. See http://code.google.com/p/sf-bike-planner/source/detail?r=40
Ah well, at least it spurred some improvements in the process.
-a-
p.s. I am now a proud father! isabella is 3 days old
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