Eric,
thanks for follow-up! No, I didn't miss it. Saw it Sunday night my time and
spent time with my son getting him ready for start of university istead.
Re the setup of Python ... I will do that this week.
Here's the code extract:
#!/usr/bin/env python
# −*− coding: UTF−8 −*−
import matplotlib
matplotlib.use('Agg') # before importing pyplot per docs
import matplotlib.pyplot as plt
import numpy as np
[snipped the import of Python and Django libraries]
###########################################################
def CreateAllWebSite():
# whichever of these is called first is done fine. Second flawed. calling
one at at time, each works ok
CreateMemberStatCategoryFigure()
CreateMemberStatFigure()
###############################################
def CreateMemberStatFigure():
"""
This function creates the member statistics bar chart that is published
multiple locations.
"""
membertypes=Membertype.objects.filter(active=True).order_by('emailorder').exclude(typecode='EXEC')
mtypes=[]
barchartcolor=[]
mtypecodes=[]
for i in membertypes:
mtypecodes.append(i.typecode)
mtypes.append(i.description)
barchartcolor.append(i.barchartcolor)
memberstatsm=MemberStatistics.monthly_objects.all()
memberstatsp=MemberStatistics.monthlypivotbytype_objects.all()
for i in memberstatsm:
monthend=i['Date']
##### this section in development. a more generic way; but can't get the calls
to p=plt to work.
##### proably needs version 1.0 of Matplotlib or something. As it works,
optimise and fix later.
# print mtypes,mtypecodes,barchartcolor
# width=24
# month=[]
# for j in memberstatsp:
# month.append(None2Zero(j['month']))
# N=len(month)
# base=np.zeros(N,int) # start off the base with zeros
# for i in membertypes:
# array1=[]
# for j in memberstatsp:
# array1.append(None2Zero(j[i.typecode]))
# array1=np.array(array1)
# p=plt.bar(month,array1,width,bottom=base,linewidth=0)
# base=base+array1
# plt.yticks(np.arange(0,200,20))
# plt.title(ORG_NAME+' Membership by Month')
# plt.ylabel('Count')
# plt.show()
# return
#####
corp1=[]
corp2=[]
corp3=[]
ordm=[]
ordr=[]
ordh=[]
month=[]
for i in memberstatsp:
month.append(None2Zero(i['month']))
corp1.append(None2Zero(i['CORP1']))
corp2.append(None2Zero(i['CORP2']))
corp3.append(None2Zero(i['CORP3']))
ordm.append(None2Zero(i['ORM']))
ordr.append(None2Zero(i['ORMR']))
ordh.append(None2Zero(i['HON']))
N=len(month)
corp1=np.array(corp1)
corp2=np.array(corp2)
corp3=np.array(corp3)
ordm=np.array(ordm)
ordr=np.array(ordr)
ordh=np.array(ordh)
base=np.zeros(N,int)
base1=base+ordh
base2=base1+corp3
base3=base2+corp2
base4=base3+corp1
base5=base4+ordm
width = 24 # the width of the bars: can also be len(x) sequence
p1 = plt.bar(month, ordh, width, color=barchartcolor[0],linewidth=0)
p2 = plt.bar(month, corp3, width,
color=barchartcolor[1],bottom=base1,linewidth=0)
p3 = plt.bar(month, corp2, width,
color=barchartcolor[2],bottom=base2,linewidth=0)
p4 = plt.bar(month, corp1, width,
color=barchartcolor[3],bottom=base3,linewidth=0)
p5 = plt.bar(month, ordm, width,
color=barchartcolor[4],bottom=base4,linewidth=0)
p6 = plt.bar(month, ordr, width,
color=barchartcolor[5],bottom=base5,linewidth=0)
plt.yticks(np.arange(0,200,20))
plt.title(ORG_NAME+' Membership by Month')
plt.ylabel('Count')
plt.legend( (p1[0], p2[0], p3[0], p4[0], p5[0], p6[0]),mtypes,loc='best')
plt.show()
matplotlib.rcParams['figure.figsize']=(3,2)
fn=TEMP_DIR+SOC_MEMBER_STAT_BARCHART_FIGURE
print " CreateMemberStatFigure(): Saving ",fn,"..."
plt.savefig(fn)
return
###############################################
def CreateMemberStatCategoryFigure():
"""
This function creates the member statistics category bar chart that is
published multiple locations.
"""
dt=strftime("%d %B %Y", gmtime())
membercategories=Membercategory.objects.all()
mcats=[]
cnt=[]
for i in membercategories:
mcats.append(i.category)
cnt.append(Member.Active_objects.filter(membercategory__category=i.category).count())
xlocations = np.array(range(len(mcats)))+0.5
print mcats
print cnt
p1 = plt.bar(xlocations,cnt)
plt.figtext(0.15,0.85,dt)
plt.xticks(xlocations+0.4, mcats,rotation=17)
plt.title(ORG_NAME+' Membership by Member Category')
plt.ylabel('Count')
plt.show()
matplotlib.rcParams['figure.figsize']=(3,2)
fn=TEMP_DIR+SOC_MEMBER_STAT_BARCHART_CAT_FIGURE
print " CreateMemberStatCategoryFigure(): Saving ",fn,"..."
plt.savefig(fn)
print " CreateMemberStatCategoryFigure():
",SOC_MEMBER_STAT_BARCHART_CAT_FIGURE," created ..."
return
################################################
On 9 Aug 2010, at 07:41, Eric Firing wrote:
> Did you miss my reply to the list?
>
> Eric
>
> -------- Original Message --------
> Subject: Re: [Matplotlib-users] Unable to make sequential calls to functions
> with create matplotlib graphs ... second gets jumbled
> Date: Sun, 08 Aug 2010 08:10:37 -1000
> From: Eric Firing <[email protected]>
> Organization: University of Hawaii
> To: [email protected]
>
> On 08/08/2010 12:53 AM, Rob Schneider wrote:
>> Running 0.98.5.3
>> (would upgrade to 1.0 but having trouble installing it on Mac OS X as it
>> doesn't appear to like the version of Python Apple provides).
>>
>
> Standard procedure on the Mac is to install the python from python.org.
> That way you don't risk fouling up the python that OS X is depending on,
> and at the same time your own code can use the version of python that
> most extension packages are built for.
>
>
>> I have a module where there are two functions which call matplotlib to each
>> create a different graph which both saved to an output PNG file. The import
>> statements:
>>
>> import matplotlib
>> matplotlib.use('Agg')
>> import matplotlib.pyplot as plt
>> import numpy as np
>>
>> are at the top of the module file. Neither function imports anything
>> specifically, relying on the above imports.
>>
>> I call each function sequentially. The result is that the first graph is
>> created correctly. The second graph is flawed, and in fact shows the legend
>> from the first function. When I reverse the function calls, which ever
>> graphing function is called first is ok, but second is flawed. If I call
>> each function on it's own, within the same Python session, the graphs (both)
>> get produced flawlessly.
>>
>> both charts are bar charts; but one does a stacked bar and the other is a
>> simple bar chart.
>>
>> Why would I not be able to call the two functions sequentially? Why does
>> the first call interfere with the second call?
>>
>
> I don't think anyone is going to be able to answer this question until
> you provide a minimal stand-alone code example. Also, the process of
> stripping your code down to the shortest example that displays the
> undesired behavior may show you where the problem lies.
>
> Eric
>
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