[SciPy-user] mysterious problem with gplt.png

[Christopher Fonnesbeck]

On Nov 29, 2003, at 4:38 AM, Pearu Peterson wrote:

>
>
> On Fri, 28 Nov 2003, Christopher Fonnesbeck wrote:
>
>> I now have scipy more-or-less happily functioning on my OSX machine
>> (thanks to all that offered help and advice!). I am, however, running
>> into an odd problem with exporting plots using gplt to a png file.
>> gplt.png and gplt.output both refuse to output to the specified file,
>> even though the methods seem to run without error. I'm not even sure
>> how to debug this. Any ideas? Here is some sample code:
>>
>> from scipy.gplt import *
>> def plot_time_series(data,name,xlab='Time',ylab='State'):
>> 	'Plot (mutiple) time series'
>> 	
>> 	plot(data)
>> 	print 'Plotting',name
>> 	grid('off')
>> 	xtitle(xlab)
>> 	ytitle(ylab)
>> 	png("%s.png" % name)
>> 	close()
>
> The above function works here fine (png images are outputed
> to specified files). Do you get any errors? What are they?
> Just in any case, scipy.gplt requires gnuplot installed.
>
> Pearu
>
>

That's part of the trouble -- there are no errors. I have gnuplot 
installed, and plots are generated without any trouble. However, when I 
call png, no file is written.

C.
--
Christopher J. Fonnesbeck ( c h r i s @ f o n n e s b e c k . o r g )
Georgia Cooperative Fish & Wildlife Research Unit, University of Georgia