[matplotlib-devel] Bug in julian2num()/num2julian()?
Hi I think there is a bug in the conversion routines jul2num() and num2jul(). I tried to define a date axis for satellite data. The time is measured in a modified Julian Date (JD). So reading in the data and then doing mp = julian2num(jd) dates = num2date(mp) resulted in an error "year out of range" (or so). I looked at the values and they were way to high. Inspection of the source date.py showed for the conversion routines julian2num: j + 1721425.5 num2julian: j - 1721425.5 Since the JD measures days from 4713 BC - earlier than the matplotlib zeropoint - the conversion should be the other way round, i.e. for julian2num we should subtract. After correcting this, I could still not reconcile my measurement dates with the result of num2date(). In the source it is stated that counting starts at 0001-01-01 00:00:00 UTC (JD 1721423.5), which BTW does not match the number used in the routines. The only way to correct this was to use an offset of JD 1721424.5 (January 2nd, 0001, 00:00:00). So the correct formulae should be julian2num: j - 1721424.5 num2julian: j + 1721424.5 or am I missing something? VERSION INFO: matplotlib V. 0.99.1.1/python 2.6.2 on opensuse 11.2/x86_64 Cheers gl -- Günter Lichtenberg -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
Re: [matplotlib-devel] Bug in julian2num()/num2julian()?
2010/3/4 Günter Lichtenberg : > Hi > > I think there is a bug in the conversion routines jul2num() and num2jul(). I > tried to define a date axis for satellite data. The time is measured in a > modified Julian Date (JD). So reading in the data and then doing Hi Günter, Thanks for digging into this. Could you file a report on the bug tracker http://sourceforge.net/tracker/?group_id=80706&atid=560720 Thanks, JDH -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
Re: [matplotlib-devel] Bug in julian2num()/num2julian()?
On Thursday 04 March 2010 14:20:41 you wrote: > 2010/3/4 Günter Lichtenberg : > > Hi > > > > I think there is a bug in the conversion routines jul2num() and > > num2jul(). I tried to define a date axis for satellite data. The time is > > measured in a modified Julian Date (JD). So reading in the data and then > > doing > > Hi Günter, > > Thanks for digging into this. Could you file a report on the bug tracker > Done under 2963391 Wrong conversion in julian2num/num2julian gl -- Dr. Günter Lichtenberg Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) Institut für Methodik der Fernerkundung (MF-AP) 82234 Weßling Tel. +49-8153-28-1331 Fax +49-8153-28-1446 guenter.lichtenb...@dlr.de -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
[matplotlib-devel] FontProperties being ignored...
All, I just submitted bug #2963827 detailing this, but thought that I would echo the problem here. When plotting annotations and specifying the FontProperties to use, the specified values are completely ignored. See the attached script and image for an example. Am I doing something inherently wrong, or is this really a bug? Thanks, --James Evans textFormat.png Description: Binary data #!/usr/bin/env python import pylab from matplotlib.font_manager import FontProperties fig = pylab.figure() ax = pylab.subplot( 1, 1, 1 ) normalFont = FontProperties( family = "Sans Serif", style = "normal", variant = "normal", weight = 500, stretch = 500, size = 14, ) ax.annotate( "Normal Font", (0.1, 0.1), xycoords='axes fraction', fontproperties = normalFont ) boldFont = FontProperties( family = "Sans Serif", style = "normal", variant = "normal", weight = 750, stretch = 500, size = 14, ) ax.annotate( "Bold Font", (0.1, 0.2), xycoords='axes fraction', fontproperties = boldFont ) boldItemFont = FontProperties( family = "Sans Serif", style = "italic", variant = "normal", weight = 750, stretch = 500, size = 14, ) ax.annotate( "Bold Italic Font", (0.1, 0.3), xycoords='axes fraction', fontproperties = boldItemFont ) lightFont = FontProperties( family = "Sans Serif", style = "normal", variant = "normal", weight = 200, stretch = 500, size = 14, ) ax.annotate( "Light Font", (0.1, 0.4), xycoords='axes fraction', fontproperties = lightFont ) condensedFont = FontProperties( family = "Sans Serif", style = "normal", variant = "normal", weight = 500, stretch = 100, size = 14, ) ax.annotate( "Condensed Font", (0.1, 0.5), xycoords='axes fraction', fontproperties = condensedFont ) pylab.show() -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
Re: [matplotlib-devel] FontProperties being ignored...
Do you have fonts whose family name is "sans serif"? Maybe you meant "sans-serif"? "sans-serif" searches for fonts whose family name is in rcParams["font.sans-serif"], but "sans serif" only search for "sans serif". I don't think it has anything to do with annotation. Check if findfont gives you a correct font. Please report back with matplotlib version etc., if findfont finds a correct font but annotation still shows with a wrong font. Regards, -JJ import matplotlib.font_manager fm = matplotlib.font_manager.fontManager print matplotlib.font_manager.findfont(normalFont) On Thu, Mar 4, 2010 at 7:07 PM, James Evans wrote: > All, > > > > I just submitted bug #2963827 detailing this, but thought that I would echo > the problem here… > > > > When plotting annotations and specifying the FontProperties to use, the > specified values are completely ignored. See the attached script and image > for an example. Am I doing something inherently wrong, or is this really a > bug? > > > > Thanks, > > --James Evans > > -- > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > ___ > Matplotlib-devel mailing list > Matplotlib-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > > -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
