I can draw a line object from the loc of one object to the loc of another.
But if I want to draw only in the space _between_ objects rather than
intersect them, how do I get the points for the location where a line object
would meet the edge of the other objects if drawn all the way to their
centers, as indicated by the "X"s below:
There might be a more ellegant solution to your problem but the one below works.
It calculates a list of the rounded locations of every pixel of the connecting line,
and checks then the first points of each end that are not within the buttons.
Cheers Thomas
on mouseUp put the loc of button "Button 1" into LStart put the loc of button "Button 2" into LStop put (item 1 of LStop) - (item 1 of LStart) into DistX put (item 2 of LStop) - (item 2 of LStart) into DistY put round((DistX^2+DistY^2)^0.5) into LLength put DistX/LLength into XStep put DistY/LLength into YStep
put 0 into i
put empty into PList -- calculated pixel of the whole line
repeat LLength times
put i + 1 into i
put (item 1 of LStart) + round(XStep*i) & comma & (item 2 of LStart) + round(YStep*i) & return after PList
end repeat
delete last char of PList
--search the first Border-Point
repeat with i = 1 to the number of lines of PList
if within(button "Button 1",line i of PList) then
next repeat
else
put line i of PList into LStart
exit repeat
end if
end repeat --search the second Border-Point
repeat with i = (the number of lines of PList) down to 1
if within(button "Button 2",line i of PList) then
next repeat
else
put line i of PList into LStop
exit repeat
end if
end repeatput LStart & comma & LStop into Punkte set the points of graphic "ConnectingLine" to Punkte end mouseUp
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