On 09/11/2011 08:00 PM, Mario Rodriguez wrote:
>
> Some of these lists are very long. You can try arrays instead. Graphic
> object 'points' can be used with lisp arrays. Type
>
> ? points
>
> for an example.
List l11, for example, contains more than 200000 points. You don't need
to join them with segments, since plotting the isolated points shows a
continuous curve. Doing so, you can avoid sorting them, which is also
time consuming.
You can sort the short lists and plot them with points_joined = true,
and generate the long ones as arrays (I hope this will be faster) and
plot them without sorting and with points_joined = false.
Another alternative is to extract from the long arrays a sample list of
points (between 200 and 300 could be enough), sort and plot them with
points_joined = true.
By the way, due to the fractal nature of the figure, are you sure that
sorting the points with respect to their arguments returns a correct
ordering along the boundary of the Julia set? Certainly, I'd try to plot
the longest lists (or arrays) without sorting.
Just a pair of ideas.
--
Mario