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> This seems to work (it's my code, all the bugs too :)
It did have a bug.
OpenWorld Learning (OWL)
On 12 Aug 2004 at 13:27, Jeff Knope wrote:
> Hi Wendy,
> I think you're right about the relatively rough positioning based on pixel
> color. Consider, in the
> math, there is actually 9-place precision both ways in the space of a single
> pixel. That's a really
> big number of discreet locations.
> I added code to Daniel's so it draws the lines. The top and bottom lines
> here are Daniel's, so you
> can see where I put it in:
> make "y4 last last last :l
> pu setpos list :x1 :y1
> pd setpos list :x2 :y2
> pu setpos list :x3 :y3
> pd setpos list :x4 :y4
> pu home st
> make "d1x :x1 - :x2
> I can't recall for sure, I think you have to hatch a turtle too.
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