Re: [9fans] Using plot(1)

[Chris McGee <newton688@gmail.com>]

Thanks,

> not sure what you mean by pipe the output, if you want to save the graph
> you need to do that by grabbing the window, there could be things like gifplot which render the plot command stream into a gif, but it doesn't (yet).

Yes, this is what I was after. I'll try fetching the window buffer and extract it from there. I'll see if a command line switch can be added easily to plot to do just that.

> i am pretty sure graph has a "don't clear the screen" option if that will do for you,
> however my suspicion is that if you close and reopen the stream to plot it will
> clear and redraw the screen. i thing (guess) that you would need to send all your
> plot commands in a single stream.

I was thinking that if plot didn't automatically clear the window (maybe with an option) you could add a background to the plot. Another option could be for plot to have an image command that imports and draws one from a file.

>> o
>> ra -1.0 -1.0 1.0 1.0
>> e
>> co r
>> cf r
>> di 0.0 0.0 1.0
>> co k
>> li 0.0 -1.0 0.0 1.0
>> li -1.0 0.0 1.0 0.0
>> cl


I tried this same plot program on a raspberry Pi with much slower graphics and I noticed that the red circle is drawn for an instant and then disappears behind a white box that covers most of it. I tried it without the lines and it's the same thing. Not sure what is clipping the circle. Very strange.

Chris