I just tried out the simplify4 patch - it gives the best results so far.
Overall this is really a huge improvement now for contourlines! Strangely
also at resolution 24 there have been improvements (or is it changes?).
Actually I wanted to try DP at resolution 24 but removing those lines that
Hi Felix,
I can't be sure because nothing was coded yet. I like the general idea, I've
already described it in the todo list years ago:
https://www.mkgmap.org.uk/dev/todo
Gerd
Von: mkgmap-dev im Auftrag von Felix
Hartmann
Gesendet: Freitag, 30. April
sorry - patch has some typos as i was still playing around with values.
here is a working version. These values I feel are good with 1.3 at
commandline.
On Fri, 30 Apr 2021 at 22:44, Felix Hartmann
wrote:
> I hardcoded a patch - as I was not sure someone is interested in it. This
> is doing the
I hardcoded a patch - as I was not sure someone is interested in it. This
is doing the job - but I do feel others could profit as well. And yes I now
understood how I could change this for a map starting at resolution 23 as
well. I'm still not sure why do we not run the DP filter on resolution 24?
Are you sure it would be needing that much more memory? If there is a big
penalty this simplification could only be done for lower resolutions, which
contain much less data. Even if its only 13-20 that would be a huge
improvement. 21 could need some love too but not as important, while 22 is
Hi all,
attached is my proposed change based on the simplify3.patch by Andrzej and the
idea to use that only for contour lines.
I see no simple way to implement major improvements for the rendering of lower
resolutions. Basically we need the WrongAngleFixer to work with a given
resolution.
Hi Felix,
you are probably right, the DP filter was not adapted to work with a map with
resolution 23 as highest resolution. A quick change would be to disable the
filter at level 0, similar to a map with max resolution 24.
The --reduce-point-density sets the error distance for the
