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[mkgmap-dev] Creating DEM-like maps using TYP customisation

From maning sambale emmanuel.sambale at gmail.com on Sat Oct 3 14:01:33 BST 2009

nice!  How were you able to close contours along tile borders?
Is it possible to pre-process the contour tiles before mkgmap?

On 9/26/09, Martin Simon <grenzdebil at gmail.com> wrote:
> 2009/9/26 maning sambale <emmanuel.sambale at gmail.com>:
>> Very nice.  Has anyone tried this with mkgmap?
>> http://www.cgpsmapper.com/download/Creating%20custom%20types%20to%20represent%20elevation%20data.pdf
>> What's needed is to simply (?) convert the contour line to polygon.
> I'm currently experimenting with this - the problem is to create
> closed polygons per tile, similar to the sea areas mkgmap can create
> from coastlines.
> This is what it looks like when it's working(when no open contours are
> involved):
> http://img30.imageshack.us/img30/9595/img0854oj.jpg
> It works quite fast, even if there are many dithering layers on top of
> each other.
> Maybe parts of the sea polygons code could be reused to extend contour
> areas to the tile borders.
> -Martin
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