You have to bear with me but where does background come from? So I can
use the save() method from the PIL library is that right?

And I can do something like this:

return render_to_response('template.html', {'graph':response})

Where graph is just a variable in my django template (and not <img
src="{{ graph }}" />)

Is that right?

On Apr 12, 12:03 pm, Sam Walters <mr.sam...@gmail.com> wrote:
> Use python imaging:http://www.pythonware.com/products/pil/
>
> You can return a response with an image of the graph.
>
> response = HttpResponse(status=200, mimetype="image/gif")
> background.save(response, "GIF")
> return response
>
> There is no 'best practice for this' Some people i know use flash.
> However dynamically generated images is good eg: no browser pluggins
>
> cheers
>
> sam_w
>
>
>
>
>
>
>
> On Tue, Apr 12, 2011 at 1:29 PM, nai <chng.nai...@gmail.com> wrote:
>
> > I will try to the 2 views method and see how I get on but in it would
> > be great if you could answer my questions too!
>
> > Why does it go against best practices?
>
> > How would one go about doing it anyway?
>
> > On Apr 11, 6:39 pm, Xavier Ordoquy <xordo...@linovia.com> wrote:
> >> Le 11 avr. 2011 à 12:21, nai a écrit :
>
> >> > This is the give example from Matplotlib for Django:
>
> >> > def simple(request):
> >> >    import random
>
> >> >    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
>
> >> > Is there anyway I can return the image like this `return
> >> > render_to_response('template.html', {'graph': <graph generated by
> >> > matplotlib or some other graphing package>}`
>
> >> Hi,
>
> >> Is there any reasons why you couldn't have a view that would just render 
> >> the image and the other one that would have a img tag pointing to the 
> >> first view ?
> >> It is possible to embed an image in the web page, but I'm sure it goes 
> >> against the best practices.
>
> >> Regards,
> >> Xavier.
>
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