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[mkgmap-dev] [PATCH] Creating contour lines from DEM data

From Christian Gawron christian.gawron at gmx.de on Sat Jul 4 06:55:59 BST 2009

Nop schrieb:
> Sounds interesting. Does it also distinguish minor and major elevation 
> lines? 
Currently the types are still hard-coded as follows:
multiples of 200m: 0x22
multiples of 50m: 0x21
0x20 for all others
This should of course be configurable (as well as a "feet" mode).
> What determines the area in which the contour lines are calculated? 
The bounding box of the tile.
> Is there a way to avoid an overload with contours e.g. when processing 
> the whole of Germany inclduing very flat country as well as the the alps?
You may split the map and use diffeent settings for each tile.

Best wishes

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