CliftonH wrote:
>
> Hello,
> I'm new to this forum, so please forgive me if I'm fogetting any
> information.
> I use python 2.5 and matplotlib version 0.91.2.0005.
> I'm plotting data that I get out of a database, which works fine. The only
> thing that doesn't work, although it works with any other simple plot, is
> the xlim()- and ylim()-function.
> My (simplified) code is:
>
> #######################################
> import MySQLdb
> import beamfpy
> import os
> from scipy.io import *
> from pylab import *
> from numpy import *
> from scipy import *
> from matplotlib.cm import ScalarMappable
>
> conn = MySQLdb.connect (host = "localhost",
> user = "root",
> db = "some_database")
> cursor = conn.cursor()
>
> krit='''
> SELECT xxx
> FROM xxx
> WHERE xxx
> ORDER xxx
> '''
>
> # text-properties
> ts=7
> rc('font', family='sans-serif',size=ts)
> rc('axes', labelsize=ts)
> #~ rc('lines', mew=1.0)
> rc('xtick',labelsize=ts)
> rc('ytick',labelsize=ts)
>
> # plot-properties
> lw=0.4
> ms=1.0
>
> for id in (7,8,9,10,11):
> cursor.execute(krit,(str(id)))
> ergall=cursor.fetchall()
> value1=array(map(lambda x:float(x[0]),ergall))
> value2=array(map(lambda x:float(x[1]),ergall))
> figure(1,figsize=(8.4/2.56,0.75*8.4/2.56))
> plot(value1,value2,'.-k',linewidth=lw,markersize=ms)
> ylim(-9,13)
> xlim(-2,25)
> if id==7:
> for i in range(len(value1)):
> if L[i]>=0:
>
> text(value1[i]-1.8,value2[i]+0.2,str(value1)+u'°',color='r',fontsize=ts-2)
> else:
>
> text(value1[i]-1.6,value2[i]-1.8,str(value1)+u'°',color='r',fontsize=ts-2)
>
> xlabel('$c_{d,n}$',fontsize=ts)
> ylabel('$c_{l,n}$',fontsize=ts)
> ylim(-9,13)
> xlim(-2,25)
> axhline(color='k')
> gca().set_position([0.15,0.17,0.75,0.75])
> filename='Fig1.eps'
> savefig(filename)
> os.system("epstopdf "+filename)
>
> cursor.close()
> conn.close()
> show()
> #####################################################
>
> As you see, I even call the xlim()- and ylim()-functions twice, once in
> the loop and the second time outside the loop. I tried both versions, too,
> but nothing worked.
> Can you help me?
>
> Thank you very much!
>
> CliftonH
>
Okay, I found it myself. Somehow the "axhline(color='k')" prevents the
ylim()-function from working. But I still don't know why.
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