On 5/12/07, Fernando Perez <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> the following shows a bug in the backend sate handling of mpl:
>
> plot(range(10))
> title(r'Foo $x=1$')
> savefig('foo.eps') # works fine, as expected.
> savefig('foo.svg') # doesn't work, that's OK: not implemented
> savefig('foo.eps') # now, this doesn't work anymore. That's the bug.
>
> Basically, when the SVG backend fails to properly generate the file
> with latex strings, it fails to resstore something in the backend
> state, and MPL ends up 'wedged'. After that point, the only way to
> get an EPS plot again seems to be to restart the session.
This was a bug where tkagg was switching backends to svg, but not
trapping the error and resetting the backend on failure. so you were
stuck in svg mode. Now we catch the error, switch the backend back to
tkagg, and then reraise.
Fortunately, I had easy access to a platform where mathtext was
installed to test and debug on :-)
JDH
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