what exactly is your "error"? Is your matplotlibrc correct? If you will be using matplotlib maybe this example from an data application i wrote may help you:
def calculate_myPic(my_args):
fig = figure(figsize=parameter.figsize)
plotarea = fig.add_subplot(111) # for my thing
# calculate your data
plotarea.bar(...) # eg. plot bars
plotarea.plot_date(...) # or a date based graph
title("my title" )
xlabel("ordinate") # eg. x-axis
# write it out on a png, *depending on matplotlibrc*
out = django.http.HttpResponse(content_type='image/png')
fig.savefig(out)
close()
return out
Am Donnerstag, den 02.08.2012, 00:46 -0400 schrieb Peregil:
> Well, I have been trying, but I cannot get the graph or error from the
> function...
>
>
> I will keep trying,..
>
>
>
>
>
>
> On Wed, Aug 1, 2012 at 5:42 PM, william ratcliff
> <william.ratcl...@gmail.com> wrote:
> Can you attach an example png? If it's not too complex, you
> might be able to do this all clientside as well...
>
>
>
>
> William
>
>
> On Wed, Aug 1, 2012 at 5:41 PM, william ratcliff
> <william.ratcl...@gmail.com> wrote:
> If you're planning on adding this to your views.py,
> then you want to move the import statements to the top
> of the file (outside of simple), so they aren't called
> every time. Don't import django.
>
>
>
>
> William
>
>
> On Wed, Aug 1, 2012 at 4:06 PM, Peregil
> <pereg...@gmail.com> wrote:
> Great thanks...
>
>
> I found this function... it seems
> complicated, but it is kind of working... I
> hope that I can include it in a my web page...
>
>
> # file charts.py
> def simple(request):
> import random
> import django
> import datetime
>
> from matplotlib.backends.backend_agg import
> FigureCanvasAgg as FigureCanvas
> from matplotlib.figure import Figure
> from matplotlib.dates import DateFormatter
>
> fig=Figure()
> ax=fig.add_subplot(111)
> x=[]
> y=[]
> now=datetime.datetime.now()
> delta=datetime.timedelta(days=1)
> for i in range(10):
> x.append(now)
> now+=delta
> y.append(random.randint(0, 1000))
> ax.plot_date(x, y, '-')
>
> ax.xaxis.set_major_formatter(DateFormatter('%Y-%m-%d'))
> fig.autofmt_xdate()
> canvas=FigureCanvas(fig)
>
> response=django.http.HttpResponse(content_type='image/png')
> canvas.print_png(response)
> return response
>
> On Wed, Aug 1, 2012 at 3:31 PM, Daniel Molina
> Wegener <d...@coder.cl> wrote:
> On 01/08/12 15:19, Peregil wrote:
> I need to have the graphic on
> a web page... as soon as a
> user hit summit...
>
>
> If you need to draw a graph, you can
> try the pygraphviz.
>
> If you need to plot a chart, you can
> matplotlib, if that is not
> so easy to implement, you can try
> using django google charts packages:
>
>
>
> http://pypi.python.org/pypi/django-googlecharts/1.0-alpha-1
>
>
>
> http://pypi.python.org/pypi/django-google-charts/0.1.1
>
>
>
>
> On Wed, Aug 1, 2012 at 3:16
> PM, william ratcliff
>
> <william.ratcl...@gmail.com
> <mailto:william.ratcl...@gmail.com>>
> wrote:
>
> As a quick hack, you could
> generate a postscript file
> using
> savefig(). Then, you
> could print that from the
> commandline to a
> local printer--If they
> don't need a physical
> printout, I would
> generate a pdf file and
> serve it to them and let them
> print it. If
> I figure out how to print
> directly using the printer
> dialog, I'll
> let you know...
>
> William
>
>
> On Wed, Aug 1, 2012 at
> 2:05 PM, Peregil
> <pereg...@gmail.com
>
>
> <mailto:pereg...@gmail.com>>
> wrote:
>
> it is an
> intranet, and I don't have any
> restrictions
> using JavaScript...
> abd I am using matplotlib... I
> thing it is
> the only way to save a
> file and put it on the web
> page...
>
>
>
> On Wed, Aug 1, 2012 at
> 1:59 PM, william ratcliff
>
>
> <william.ratcl...@gmail.com
> <mailto:william.ratcl...@gmail.com>>
>
> wrote:
>
> What are you using
> for your plotting package?
> Matplotlib?
> I think that this
> will show the plot (on the
> server
> machine)--the
> easiest thing I can think of
> for now (assuming
> that you are using
> matplotlib) is to generate a
> pdf and send
> them the file. I
> haven't tried printing
> directly--is this
> intranet, or
> external facing? Do you have
> any restrictions
> on using
> javascript?
>
> William
>
>
> On Wed, Aug 1,
> 2012 at 12:58 PM, Peregil
> <pereg...@gmail.com
>
>
> <mailto:pereg...@gmail.com>>
> wrote:
>
> a user to
> print one
>
> I did this in
> python, but throws an error in
> django when
> I tried to run
> it... I have seen some
> examples of saving
> an image, but
> I would like to avoid that
> since I don't
> want to open
> and close a file...
>
> let me know if
> you have any idea....
>
> thanks
>
> Python
> program:
>
>
> def
> drawPlot(arrayGene1,
> arrayGene2):
> message =
> ''
> (m,b) =
> polyfit(arrayGene1,arrayGene2,1)
> yp =
> polyval([m,b],arrayGene1)
>
> xlable('Gene 1')
>
> ylable('Gene 2')
>
> title('Correlation Graph')
>
> plot(arrayGene1, yp)
>
>
> scatter(arrayGene1,arrayGene2,marker='>')
> show()
>
> return(message)
>
>
>
> On Wed, Aug 1,
> 2012 at 12:21 PM, william
> ratcliff
>
> <william.ratcl...@gmail.com
>
>
> <mailto:william.ratcl...@gmail.com>>
> wrote:
>
> Do you
> need to display a graph, or
> allow the user to
> print one?
>
> On Wed,
> Aug 1, 2012 at 12:06 PM,
> Peregil
>
>
> <pereg...@gmail.com
> <mailto:pereg...@gmail.com>>
> wrote:
>
> The
> information comes from a
> database, which I
> got it
> with a problem. However, I
> need to show a
> graph
> as well.
>
> Please
> let me know any suggestions...
>
> thanks
> and have great day.
>
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> Best regards,
> --
> Daniel Molina Wegener <dmw [at] coder
> [dot] cl>
> System Programmer & Web Developer
> Phone: +56 (2) 979-0278 | Blog:
> http://coder.cl/
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