I'd also like to thank everyone involved in implementing this feature.
I have not yet tried the new overview map on a device, but I can confirm that
map display is considerably faster in Basecamp on Mac OS X. In addition, the
overview map makes the selection of map tiles in MapInstall far far easier
(used to transfer the selected map tiles to a GPS device).
Excellent work.
Cheers.
On May 31, 2013, at 4:44 PM, Steve Ratcliffe st...@parabola.me.uk wrote:
This is great news. The overview map was one of the biggest deficiencies in
mkgmap until now.
So thanks to Gerd and well done.
Also a lot of bugs have been fixed along the way, so I would like to
acknowledge that too.
I will put up a news item on the website this evening and push out notices to
freecode.
..Steve
GerdP gpetermann_muenc...@hotmail.com wrote:
Hi all,
finally I've merged r2629 into trunk.
A brief description of the changes:
1) new or changed options
--overview-levels
like levels, specifies additional levels that are to be written to the
overview map. Counting of the levels should continue. Up to 8 additional
levels may be specified, but the lowest usable resolution with MapSource
seems to be 11.
--remove-ovm-work-files
If overview-levels is used, mkgmap creates one additional file
with the prefix ovm_ for each map (*.img) file.
These files are used to create the overview map.
With option --remove-ovm-work-files=true the files are removed
after the overview map was created. The default is to keep the files.
--polygon-size-limits=limits code
Allows to specify different min-size-polygon values for each resolution.
Sample:
--polygon-size-limits=24:12, 18:10, 16:8, 14:4, 12
:2,
11:0
If a resolution is not given, mkgmap uses the value for the next higher
one. For the given sample, resolutions 19 to 24 will use value 12,
resolution 17 and 18 will use 10, and so on.
Value 0 means to skip the size filter.
Note that in resolution 24 the filter is not used.
2) Optimizations:
- The polygon filter allows larger polygons.
- SeaGenerator generates fewer sea-only and land-only polygons when
precomp-sea is used.
Both reduce the img size, esp. for maps containing large sea only areas.
3) Changes regarding styles:
- The support for the out-aged map-features.csv file was removed
- Level ranges can now use min-max or max-min
- Usage of polygon type 0x4a will be flagged with --check-styles
4) Other changes
- A few checks are performed regarding the plausibility of the given options
and input files
to help beginners.
br
/
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