to answer my own question, this will work (I think):
-- ie work out distance to cover in x and y
-- the arguments pt and cr need to be property lists
-- with identical property names (obviously the values can
-- be different :]
on globalToLocal pt, cr
return pt-cr
end
-----Original Message-----
From: Simon Wheatley [mailto:[EMAIL PROTECTED]]
Sent: 26 September 2001 10:13
To: '[EMAIL PROTECTED]'
Subject: <lingo-l> calculations while setting property lists
Can anyone tell me if this kind of thing is possible:
-- ie work out distance to cover in x and y
on globalToLocal pt, cr
return [#xx:(pt[#xx]-cr[#xx]), #yy:(pt[#yy]-cr[#yy])]
end
Lingo seems to be choking on it at the moment. The obvious answer is to set
the values as variable, and then use them to set the properties in the list,
but us there a more compact elegant way of doing it?
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