ok, I found it, I mistyped 'Content-Type', my fault thanks! aus
On Dec 16, 5:04 pm, aus <[email protected]> wrote: > ok, it works, but firefox displays the raw data, not a figure. I guess > I need an appropriate view for that, am I right? > > Cheers > aus > > On Dec 16, 4:56 pm, mdipierro <[email protected]> wrote: > > > response.header['content-type']='image/png' > > > should have been > > > response.headers['Content-Type']='image/png' > > > Massimo > > > On Dec 16, 9:48 am, aus <[email protected]> wrote: > > > > Hi Massimo, > > > > thank you for the *really* prompt reply! > > > I managed to have Dojox charts work, but I'm getting a error message > > > form the "matplotlib" code (btw, "import datetime" was missing). I > > > pasted the Dojo code at the bottom of this email, just in case I'm not > > > the only beginner around :) > > > > Traceback (most recent call last): > > > File "/home/aus/Software/Web2py/web2py/gluon/restricted.py", line > > > 62, in restricted > > > exec ccode in environment > > > File "/home/aus/Software/Web2py/web2py/applications/test/controllers/ > > > matplotlib.py", line 29, in <module> > > > File "/home/aus/Software/Web2py/web2py/gluon/globals.py", line 55, > > > in <lambda> > > > self._caller=lambda f: f() > > > File "/home/aus/Software/Web2py/web2py/applications/test/controllers/ > > > matplotlib.py", line 23, in simple > > > response.header['content-type']='image/png' > > > TypeError: 'NoneType' object does not support item assignment > > > > what's wrong with the response? > > > > thank you once again! > > > > Cheers, > > > aus > > > > Dojo / Dojox charting / JSON example: > > > > <script type="text/javascript"> > > > > dojo.require("dojox.charting.Chart2D"); > > > {{import gluon.contrib.simplejson as sj}} > > > > function plott(){ > > > //var dd = dojox.json.ref.fromJson(data); > > > //var data = [1,3,2,4,3,6]; > > > console.debug({{=sj.dumps(data)}}); > > > var chart1 = new dojox.charting.Chart2D("simplechart"); > > > chart1.addPlot("default", {type: "Lines"}); > > > chart1.addAxis("x"); > > > chart1.addAxis("y", {vertical: true}); > > > chart1.addSeries("Series 1", {{=sj.dumps(data)}}); > > > chart1.render();}; > > > > dojo.addOnLoad(plott); > > > > </script> > > > > On Dec 16, 3:49 pm, mdipierro <[email protected]> wrote: > > > > > In web2py+matplotlib: > > > > > def simple(): > > > > import random, cStringIO > > > > > 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.header['content-type']='image/png' > > > > stream=cStringIO.StringIO() > > > > canvas.print_png(stream) > > > > return stream.getvalue() > > > > > Massimo > > > > > On Dec 16, 6:12 am, aus <[email protected]> wrote: > > > > > > Hi Massimo, > > > > > > thank you for your reply. Your suggestion does not seem to work, but > > > > > maybe I'm not using Dojo properly. How would you code the plot with > > > > > flot? > > > > > > Also, it would be great to be able to embed images/charts generated by > > > > > matplotlib, similarly to what can be done with > > > > > django:http://www.scipy.org/Cookbook/Matplotlib/Django. Is there a > > > > > similar > > > > > feature in web2py? > > > > > > Thank you! > > > > > > Cheers, > > > > > aus > > > > > > On Dec 16, 6:57 am, mdipierro <[email protected]> wrote: > > > > > > > I do not know about Dojo. I have been using flot instead. perhaps > > > > > > this > > > > > > helps > > > > > > > {{import gluon.contrib.simplejson as sj}} > > > > > > {{=sj.dumps(data)}} > > > > > > > data will be printed in the page in json format. If your > > > > > > view/template > > > > > > includes javascript code you can put the above statements in the js > > > > > > itself. > > > > > > > Perhaps other users can help more. > > > > > > > Massimo > > > > > > > On Dec 15, 11:31 pm, aus <[email protected]> wrote: > > > > > > > > Hi everybody, > > > > > > > > although I have some experience with programming, javascript/AJAX > > > > > > > is > > > > > > > completely new to me. I'm very happy with web2py and I'm trying > > > > > > > now to > > > > > > > pass arrays and possibly more structured data to Dojox to plot > > > > > > > series > > > > > > > computed in python using Dojox's charts. How can I do that? I > > > > > > > somehow > > > > > > > cannot cross the wall between the templace code and the javascript > > > > > > > code... Is JSON a possible solution? Could someone provide an > > > > > > > example? > > > > > > > > thank you! > > > > > > > > Cheers, > > > > > > > aus > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
