On Thursday, January 5, 2012, Arnaud Gardelein <arn...@oscopy.org> wrote:
> In my configuration, when button is released out of the axes,
> RectangleSelector does not catch the release-button event. The rectangle
> patch is then left on the Axe. I found more convenient for my
> application (oscopy, see oscopy.org) to catch the event even if out of
> axes and limit to the boundaries of the axes. Maybe this can be of any
> use to somebody else.
>
> *** widgets.py 2012-01-05 07:03:23.723656417 +0100
> --- widgets2.py 2012-01-05 07:04:29.351981851 +0100
> ***************
> *** 1242,1247 ****
> --- 1242,1262 ----
> return event.inaxes!= self.ax
>
> # If a button was pressed, check if the release-button is the
> + # same. If event is out of axis, limit the data coordinates to
> axes
> + # boundaries.
> + if event.button == self.eventpress.button and event.inaxes !=
> self.ax:
> + (xdata, ydata) =
> self.ax.transData.inverted().transform_point((event.x, event.y))
> + xlim = self.ax.get_xlim()
> + ylim = self.ax.get_ylim()
> + if xdata < xlim[0]: xdata = xlim[0]
> + if xdata > xlim[1]: xdata = xlim[1]
> + if ydata < ylim[0]: ydata = ylim[0]
> + if ydata > ylim[1]: ydata = ylim[1]
> + event.xdata = xdata
> + event.ydata = ydata
> + return False
> +
> + # If a button was pressed, check if the release-button is the
> # same.
> return (event.inaxes!=self.ax or
> event.button != self.eventpress.button)
>
> Arnaud.
>
>
I don't have an opinion on this yet, but I do want to note that if this
change were applied, then the lasso selector should probably also be
changed in order to be consistent.
Ben Root
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