Your tick format function returns less labels than the number of items in the
pre-ticks. It should return one label for each pre-tick object (I just printed
out the lengths from the function to find this out.)
To fix this, I replaced the format function with
(for/list (((t idx) (in-indexed pre-ticks)))
(list-ref string-list idx))
On Friday, October 14, 2016 at 5:28:08 PM UTC+8, Laurent Orseau wrote:
> Hi all,
> I'm trying to write a `string-ticks` function to have arbitrary strings on
> the (y) axis.
> It mostly works, but as soon as I try to zoom by selecting a rectangle *that
> touches upper left corner of the plot frame* DrRacket's interaction window
> goes crazy and I have to restart it.
> Here's the (faulty)
> Anyone has an idea about what goes wrong here?
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