Hi
On Sun, Oct 31, 2010 at 10:54 AM, Benoit de Cabissole <[email protected]> wrote: > Hi Tim, > > Many thanks for fixing the problems [14381, 14387 & 14425]! > > But there is now another one popping up: > > When the data values in an one-band raster are real numbers and are > negative/positive or are greater than 255 (?) the histogram curve does > not display. The x- and y-axis correctly show the range of values but no > curve is displayed. Furthermore, if data values are positive and > negative, the histogram curve stops at 0: no curve over the negative values. > > > It also looks like the number of bins is too small when the data range > is small. I've got a raster with "real number" values between 0 and 5. > The number of bins on that raster is only 6. This is far too coarse to > be of any use. > > Do I open a ticket for those problems? Do you have a small sample dataset I can use to replicate the issue? Regards Tim > > Cheers, > Benoit > > > > > On 18/10/2010 09:29, Benoit de Cabissole wrote: >> Hi Tim, >> >> Just after upgrading to release 14390 the histogram function works like >> a charm when I open *for the first time* the raster properties window. >> Thank you! >> >> But, if I close the raster property window while in the histogram tab >> and try to re-open it, QGIS crashes! >> In fact I cannot open any raster properties window after that without >> having QGIS crash... >> I've edited the 'row' value in the RasterLayerProperties in the registry >> to set it to 1 (from 6) and I can again use QGIS normally. >> So it seems that the raster properties window bombs out QGIS if it opens >> in the histogram tab (row=6). >> >> Can you reproduce this behaviour in Linux/Mac/Other win? >> >> I'm on WindowsXP in OSGeo4W. >> >> One comment: the stats are computed each time the histogram tab is >> opened. For large raster it takes a long time to compute the histogram. >> Would it be best to save the histogram somewhere and reuse it? >> >> Cheers, >> Benoit >> >> >> >> On 17/10/2010 09:23, Tim Sutton wrote: >>> Hi >>> >>> On Thu, Oct 14, 2010 at 9:51 AM, Benoit de Cabissole <[email protected]> >>> wrote: >>>> Hi, >>>> >>>> A) In release 14370 the histogram tab of the raster properties window >>>> has a problem: >>>> The histogram is not displayed the second time the 'histogram tab' is >>>> clicked. >>>> E.g.: >>>> 1 - open the raster properties window >>>> 2 - click on the histogram tab >>>> 3 - histogram is computed and displayed >>>> 4 - click on any other tab >>>> 5 - click on the histogram tab again >>>> 6 - blank screen!! >>>> >>>> On WinXP - OSGeo4W dev installation >>>> Can someone replicate the problem? >>>> >>> This should be fixed now as of r14387. >>> >>> Regards >>> >>> Tim >>> >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer >> > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer > -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) ============================================== Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net ============================================== _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
