Hi,
picking up this old thread: I'm still using the old XCsoar 5.4 maps with version 6.x. This works without problems, apart from sometimes incorrect agl-height indications. I did not experience difficulties with final glides yet, but that may be due to the fact that my finish points had correct agl. I think the advantage of a possible small performance increase (I have absolutely no problems with the old maps being sluggish) does simply not outweigh the BIG disadvantage of having to install your maps on a SD-card. I have frequently experienced problems with SD-card errors on different IPAQs during flight. Every separate, not hard-wired, electronic component is a possible source of failure or program break down. I would very much prefer the old system with smaller map size still being available under XCsoar 6.x that can be loaded directly into the IPAQ-memory because they are small enough! For the moment I keep to my old small size maps. Maybe it would be possible to offer the possibility to use both modes if you don't want to revert to the old compressed map system? John Gooden > On 7 April 2011 09:00, Ronald Niederhagen <ronald_niederha...@freenet.de> > wrote: >> Hi, >> >> the pre-generated map files from http://www.xcsoar.org/download/maps/ >> have trippled in size. Examples: >> GER.xcm is now 44.5M, was 12.5M when I downloaded on Dec 6, 2010. >> ALPS.xcm is now 30.9M, was 9.3M on Dec 6. > > XCM files used to be compressed but as of mid December are now just > container files (think of it as a ZIP file which just holds files > instead of compressing them - because that's exactly what it is.) This > gives a performance gain at the cost of storage space. > > Hopefully all issues for users of old devices are gone now, in testing > my iPAQ 3850 running Windows Mobile 2003 runs very well indeed with > the UK data and memory use doesn't appear to be excessive. Extremely > impressive considering there are numerous extra calculations going on > in the background. The initial loading of topology from the SD card is > slow though, these devices were notorious for sluggish memory card > read time. > > As for even older devices, there were issues with PPC2000/2002 (2002 > is basically 2000 with lipstick) performance which I think Max has > fixed very recently. > > Simon > > ------------------------------------------------------------------------------ > Xperia(TM) PLAY > It's a major breakthrough. An authentic gaming > smartphone on the nation's most reliable network. > And it wants your games. > http://p.sf.net/sfu/verizon-sfdev > _______________________________________________ > Xcsoar-user mailing list > Xcsoar-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcsoar-user >
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