I never took trig, but I imagine some of Rev's trig functions might be helpful in determining this. If it's any help, here's a button handler that draws the angle:

on mouseUp
   put "40,116/98,186/132,118" into tPointsList
   replace "/" with cr in tPointsList
   set the style of the templateGraphic to "polygon"
   set the lineSize of the templateGraphic to 1
set the showBorder of the templateGraphic to true -- to show the grc edge
   create grc "angle"
   set the points of grc "angle" to tPointsList
end mouseUp

When I draw it, I see there is a right angle at the bottomRight of it that might serve as a reference point of some sort? Of course a real numbers person wouldn't need to draw anything to "see" this. It would be <highestCol1Number>,<highestCol2Number>.

I'll be interested to see the solution too.

Phil Davis



On 12/15/09 10:21 PM, Mark Swindell wrote:
40,116
98,186
132,118

How would one determine the angle created from three points, such as those 
above?

Thanks,
Mark_______________________________________________
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--
Phil Davis

PDS Labs
Professional Software Development
http://pdslabs.net

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