Wed, Jun 26 2002
22:35:11
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Request created by guest
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Subject: detailed view of vector maps doesn't work
Platform: GNU/Linux/i386
grass obtained from: Other (CDROM etc)
grass binary for platform: Compiled from Sources
GRASS Version: GRASS 5.0.0pre5 (June 2002)
Can't zoom in on vector maps.
d.zoom or manually adjusting with g.region both show nothing at
all if I try to look at details of vector map. If done with d.zoom,
I can Unzoom until I find home base again, and then if I zoom in
on an area that encloses entire orignal region, it works.
I could do this with the pre3 release, except then if I read in
a shape file I had extraneous lines going all over the place.
I'm willing to look into fixing some myself, if somebody can clue
me in a little where to look. Everything looks reasonable up to
the call to redraw() in src/display/d.zoom/cmd/set.c, I don't
know if I'd be able to figure out that much below there.
compilation -- nothing special. ./congiure, make, make install
(no postgres or fftw)
I can send the data I'm looking at if you want it.
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Wed, Jun 26 2002
22:43:47
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Mail sent by guest
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damnit
never mind
v.spag then v.support seem to fix this.
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Tue, Jul 16 2002
22:01:08
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Priority changed to 30 by bernhard
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Fri, Dec 1 2006
07:41:58
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Comments added by hbowman
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I see this if I zoom waaaaaaaay in on e.g. a corner in a vector area, often it
becomes very slow to redraw and only one of the two borders are drawn. The
filled area is correctly displayed.
Hamish
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Sun, Dec 3 2006
21:40:29
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Mail sent by mneteler
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If one zooms very much, the vectors start to jump around (like in QGIS, too).
This is apparently a precision problem in the display system. A common trick
to work around this is to limit the zoom depth.
Markus |
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Tue, Jun 19 2007
09:03:40
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Area changed to grass6 by hbowman
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