plots not showing in LightTable about pyplot.jl HOT 7 OPEN

cc: @one-more-minute; I haven't tried LT yet, so I don't have any experience with this.

PyPlot attempts to do inline plotting whenever displayable returns true for image/png or other supported image formats. In that case, it calls redisplay(fig) from each plotting command.

LightTable's Display subclass should probably overload redisplay(d, x) to add x to a queue of things to display (removing duplicates), and then flush the queue at the end of an input execution, similar to IJulia. See inline.jl, and the undisplay function (which is also called on the result of an input evaluation to avoid displaying the result twice).

from pyplot.jl.

Ok, but for starters I would settle for a separate plotting window being opened. This however does not happen.

from pyplot.jl.

That's because PyPlot thinks that inline display is available. You can run pygui(true) to explicitly force a separate Python plotting window even if there is an inline display.

from pyplot.jl.

Looks like there was a bug in redisplay(x) that may have prevented it from working properly here.

from pyplot.jl.

Thanks for letting me know, I'll take a look at this.

from pyplot.jl.

This works now. Just call PyPlot's "figure()" method to see results inline.

import PyPlot
pplt = PyPlot

x = [x/1000 * 2_pi for x=1:1000]
y = sin(3_x + 4_cos(2_x))
pplt.plot(x, y, color="red", linewidth=2.0, linestyle="--")
pplt.title("Sample graph")
pplt.figure(1)

from pyplot.jl.

figure shouldn't be necessary if redisplay is implemented as I explained above.

from pyplot.jl.