On Wed, 20 Feb 2002 16:39:42 +0200, "Klaus Lehtonen" <leh### [at] hotmailcom>
wrote:
>   #local ending = <placex,-100,placez>;
>   #local place = trace(thing,start,ending,norm);

third parameter of trace is value of direction vector,
not ending point of direction vector

I suppose You want:
#local ending = <0,-1,0>;

change to this and check again your script

ABX

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