Re: [Matplotlib-users] change a matplotlib.lines.Line2D and update the plot

[John H. <jd...@gm...>]

On Mon, Jun 15, 2009 at 9:36 AM, TP<par...@fr...> wrote:
> Hi everybody,
>
> I want to modify a matplotlib.lines.Line2D and update the plot.
> I have used Line2D._y member to modify the line. It works. But by doing
> canvas.draw() (see example below), the line is not updated on the plot. To
> update it, I have to do autoscale_view(). But I do not want the x and y
> ranges of the plot to be changed.

Turn autoscaling off with

  ax.set_autoscale_on(False)

update the line with

  line.set_ydata(newdata)

draw the canvas with

  fig.canvas.draw()

JDH