It works perfectly. I thought I had tried that. :/
On Mon, Feb 20, 2012 at 4:18 PM, Eric Firing <efir...@hawaii.edu> wrote:
> On 02/20/2012 01:36 PM, Jeffrey Melloy wrote:
>> I'm using Flask to output graphs to a web service, and when I move
>> from a standalone script to the web service I'm getting weird
>> behavior.
>>
>> In gantt_test.py, I do this:
>>
>> from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
>> from matplotlib.figure import Figure
>> [...]
>>
>> canvas = FigureCanvas(fig)
>> fig.savefig("gantt.png")
>>
>>
>> And it looks nice.
>>
>> In the web service, the only difference is:
>>
>> canvas = FigureCanvas(fig)
>>
>> x = StringIO()
>>
>> canvas.print_png(x, facecolor="w", edgecolor="w", dpi=100)
>
> What happens if instead of using canvas.print_png you use
> fig.savefig(x, format="png")
>
> Eric
>
>>
>> And it has a grey background, weirder margins, and seems to be stuck at
>> dpi=80.
>>
>> What am I missing? The version of python& matplotlib are the same
>> between machines. One is Windows 7, the other 2K3.
>>
>> -Jeff
>>
>>
>>
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