Makes perfect sense.
When you use matplotlib you can do:
You can store the image in temp file:
import tempfile
f = tempfile.NamedTemporaryFile()
canvas = FigureCanvas(figure)
canvas.print_png(f)
filename = f.name
f.close()
then move it to the db in a field called for example file of type upload
db.table.insert(file = db.table.file.store(filename=filename)
then read the file, delete, and return the image
data = open(filename,'rb').read()
os.unlink(filename)
return data
On Wednesday, 4 April 2012 13:50:12 UTC-5, dancer` wrote:
>
> Hello,
>
> I'm on the newer end of programming, and web2py has been my first (and
> very happy) foray into web application development. I am developing an
> application to remotely control two spectrum analyzers (HP 3562A) in our
> lab to do swept sine and power spectra plots. The connection is made using
> sockets, and the data is dumped, modified, and plotted using numpy, scipy
> and matplotlib. The examples I have found that do this do not mention how
> to store the resulting plots on disk but rather plot in real time when
> required. What I would like is to have a results table with all the run
> parameters (for both sweeps and PSD) and have a thumbnail image (I know how
> to generate a thumbnail if I have a parent file) that links to the original
> plotted image. Is this possible, or am I approaching this the wrong way?
>
> Thank you.
>
