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Subject: more "Intersection"
From: mwforum@xxxxxxxxxxxxxxxxxx (Daniel Ajoy)
Date: Thu, 12 Aug 2004 15:55:14 -0500

> This seems to work (it's my code, all the bugs too :)

It did have a bug. 

Project attached.

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
> ht
> 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.
> --Jeff

Attachment: LineIntersection.mw2
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