On Sat, Mar 29, 2008 at 12:21 PM, Roger Bivand <[EMAIL PROTECTED]> wrote: > > On Sat, 29 Mar 2008, Roger Bivand wrote: > > > On Sat, 29 Mar 2008, Tim Keitt wrote: > > > >> On Sat, Mar 29, 2008 at 10:25 AM, Tim Keitt <[EMAIL PROTECTED]> wrote: > >>> > >>> On Sat, Mar 29, 2008 at 10:01 AM, Tim Keitt <[EMAIL PROTECTED]> wrote: > >>>> > >>>> On Sat, Mar 29, 2008 at 8:41 AM, Roger Bivand <[EMAIL PROTECTED]> wrote: > >>>>> On Fri, 28 Mar 2008, Tim Keitt wrote: > >>>>> > >>>>>> I'm trying to see if I can track down a bug in X windows that causes > >>>>>> it to crash when plotting (I believe) very small filled polygons (or > >>>>>> it may have to do with large numbers of polygons). I first noticed > >>>>>> this running QGIS. Loading a PostGIS layer with ~3K polygons will > >>>>>> cause X to abort. I can load the layer if I have already zoomed into a > >>>>>> smaller region of the coverage. Once I try to zoom out to the full > >>>>>> extent, X dies. > >>>>>> > >>>>>> So I tried loading the polygons into "sp" using "readOGR" which works > >>>>>> great. I could then plot the polygons, no problem. But when I called > >>>>>> "spplot" which I believe fills the polygons, same problem. X crashes. > >>>>>> > >>>>>> Can anyone confirm this behavior? Try plotting a large number of > >>>>>> polygons with spplot and also try very small polygons (less than a > >>>>>> pixel size). I can send around the shapefile if anyone is interested. > >>>>>> It contains GSHHS coastlines for Micronesia. > >>>>> > >>>>> I can't reproduce any problems on > >>>>> > >>>>> http://www.census.gov/geo/cob/bdy/co/co00shp/co99_d00_shp.zip > >>>>> > >>>>> library(rgdal) > >>>>> usc <- readOGR(".", "co99_d00") > >>>>> # OGR data source with driver: ESRI Shapefile > >>>>> # Source: ".", layer: "co99_d00" > >>>>> # with 3489 rows and 9 columns > >>>>> plot(usc, col=rainbow(52)[usc$state1]) > >>>>> spplot(usc, "STATE", col.regions=rainbow(52)) > >>>>> > >>>>> and: > >>>>> > >>>>> $ xdpyinfo > >>>>> name of display: :0.0 > >>>>> version number: 11.0 > >>>>> vendor string: The X.Org Foundation > >>>>> vendor release number: 60802000 > >>>>> X.Org version: 6.8.2 > >>>>> ... > >>>>> screen #0: > >>>>> dimensions: 1280x1024 pixels (361x271 millimeters) > >>>>> resolution: 90x96 dots per inch > >>>>> depths (7): 16, 1, 4, 8, 15, 24, 32 > >>>>> > >>>>> Could you please make your file available - maybe there is something > >>>>> particular about it? Is there way of asking X which driver it is using > >>>>> (here nvidia proprietary for Legacy GPU version (1.0-71xx series), > full > >>>>> details in /proc/driver/nvidia)? > >>>> > >>>> I'll put the file someplace where it can be downloaded. > >>> > >>> OK. It is at http://www.keittlab.org/~tkeitt/melanesia.tgz. I just > >>> confirmed loading this file into QGIS 0.9.2-rc2 reproduces the X > >>> crash. I'll test the same under Hardy shortly (requires a chroot). > >>> > >>> THK > >>> > >>> > >>> > >>>> > >>>> This has happened on my desktop using both nvidia and vesa drivers and > >>>> on my laptop with the intel driver. > >> > >> I just confirmed the same bug under Hardy Heron again using QGIS > >> 0.9.2-rc2. I'll try with "spplot" next. > > > > I'll try melanesia on my system, please try the US counties shapefile on > > yours. > > The melanesia shapefile does not cause any problems on my system as > documented earlier with spplot(). I guess that your X(s) is/are fresher > than mine, but trying on another Linux system (F7, X.org 1.3.0, intel > driver) shows no problems either, I'm afraid. > > Roger >
version number: 11.0 vendor string: The X.Org Foundation vendor release number: 10400090 X.Org version: 1.4.0.90 Sigh. Debugging X is such a pain... THK > > > > > > Roger > > > >> > >> THK > >> > >>>> > >>>> THK > >>>> > >>>> > >>>>> > >>>>> Roger > >>>>> > >>>>>> > >>>>>> THK > >>>>>> > >>>>>> > >>>>> > >>>>> -- > >>>>> Roger Bivand > >>>>> Economic Geography Section, Department of Economics, Norwegian School > of > >>>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen, > >>>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 > >>>>> e-mail: [EMAIL PROTECTED] > >>>>> > >>>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> -- > >>>> Timothy H. Keitt, Assistant Professor > >>>> University of Texas at Austin http://www.keittlab.org/ > >>>> Contact info and schedule at http://www.keittlab.org/~tkeitt/ > >>>> Please support open document formats http://opendocument.xml.org/ > >>>> > >>> > >>> > >>> > >>> -- > >>> Timothy H. Keitt, Assistant Professor > >>> University of Texas at Austin http://www.keittlab.org/ > >>> Contact info and schedule at http://www.keittlab.org/~tkeitt/ > >>> Please support open document formats http://opendocument.xml.org/ > >>> > >> > >> > >> > >> > > > > > > -- > Roger Bivand > Economic Geography Section, Department of Economics, Norwegian School of > Economics and Business Administration, Helleveien 30, N-5045 Bergen, > Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 > e-mail: [EMAIL PROTECTED] > > -- Timothy H. Keitt, Assistant Professor University of Texas at Austin http://www.keittlab.org/ Contact info and schedule at http://www.keittlab.org/~tkeitt/ Please support open document formats http://opendocument.xml.org/ _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
