Optimization in overviev2 branch
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Hi all, I've committed r2612. This creates much fewer polygons, esp. in combination with the SeaGenerator and large sea areas. For a map of South America, the gmapsupp size is decreased by 20MB, the overview map size went down from 12 Mb to 3.9 Mb. It also seems that this fixes an issue with MapSource / Basecamp: If you max zoom out of the map created with r2610, the programs show many white rectangles for the sea areas, with r2612 this is no longer the case. Gerd
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On 15.05.2013 12:21, Gerd Petermann wrote:
Hi all,
I've committed r2612. This creates much fewer polygons, esp. in combination with the SeaGenerator and large sea areas. For a map of South America, the gmapsupp size is decreased by 20MB, the overview map size went down from 12 Mb to 3.9 Mb.
It also seems that this fixes an issue with MapSource / Basecamp: If you max zoom out of the map created with r2610, the programs show many white rectangles for the sea areas, with r2612 this is no longer the case. strange, why white rectangles? since mkgmap:skipSizeFilter=true - this didn't happen to me anymore. Anyhow great improvement. Those sea tiles were cut far too small...
I have to try, but probably now higher min-size-polygon values, will work again (well the new depending on resolution min-size filter isn't redundant by this either - still a good solution)
Gerd
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Hi, Felix Hartmann-2 wrote
strange, why white rectangles? since mkgmap:skipSizeFilter=true - this didn't happen to me anymore. Anyhow great improvement. Those sea tiles were cut far too small...
yes, it was a bug in a filter. I think the white rectangles were caused by something else, maybe too many polygons or something like that. GPSMapEdit shows no white parts. Attached is a patch which might improve the filter even more for large sea areas. PolygonSubdivSizeSplitterFilter_v2.patch <http://gis.19327.n5.nabble.com/file/n5761195/PolygonSubdivSizeSplitterFilter_v2.patch> Gerd -- View this message in context: http://gis.19327.n5.nabble.com/Optimization-in-overviev2-branch-tp5761178p57... Sent from the Mkgmap Development mailing list archive at Nabble.com.
participants (3)
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Felix Hartmann
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Gerd Petermann
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GerdP