Thanks. I neglected to include the "start using" command. Mark
On Dec 17, 2009, at 11:18 AM, James Hurley wrote: >> >> Message: 12 >> Date: Wed, 16 Dec 2009 21:47:10 -0800 >> From: Mark Swindell <[email protected]> >> Subject: Re: Deriving an angle from three points >> To: How to use Revolution <[email protected]> >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset=us-ascii >> >> James, >> >> Thanks for this, but starting the Turtle stack did not allow me to calculate >> the angle. I got an error each time at "Start Turtle." Is there a trick to >> making the library accessible to other stacks? >> >> Mark > > Mark, > > I think the problem might be that you may have used "Start Turtle" instead of > "StartTurtle" > > There should be no spaces. Try just copying and pasting the script into a > button on the Turtle Graphics stack. If you use it outside of the Turtle > Graphics stack, you will need to do a "Start Using stack..." > > Hope this helps. > > Jim Hurley >> >> On Dec 16, 2009, at 8:08 AM, James Hurley wrote: >> >>>> >>>> Message: 24 >>>> Date: Tue, 15 Dec 2009 22:21:47 -0800 >>>> From: Mark Swindell <[email protected]> >>>> Subject: Deriving an angle from three points >>>> To: How to use Revolution <[email protected]> >>>> Message-ID: <[email protected]> >>>> Content-Type: text/plain; charset=us-ascii >>>> >>>> 40,116 >>>> 98,186 >>>> 132,118 >>>> >>>> How would one determine the angle created from three points, such as those >>>> above? >>>> >>>> Thanks, >>>> Mark >>>> >>> >>> Mark, >>> >>> Or even easier. Set the Turtle at the apex and get the angle of the other >>> two points. >>> >>> >>> on mouseUp >>> startTurtle --Initiates the turtle graphics library >>> penup >>> setxy 98,186 --The vertex >>> put direction(40,116) into A >>> put direction(132,118) into B >>> put B-A into dA >>> put abs(dA) & cr & abs(180 - dA) into msg box >>> choose the browse tool >>> end mouseUP >>> >>> (Assuming your middle point is the apex of the angle you want.) >>> >>> To run this you will need the TG library. Run this in the msg box >>> >>> go url "http://www.jamesphurley.com/jhurleyFolder/TurtleGraphics.rev"; >>> >>> Jim Hurley >>> _______________________________________________ >>> use-revolution mailing list >>> [email protected] >>> Please visit this url to subscribe, unsubscribe and manage your >>> subscription preferences: >>> http://lists.runrev.com/mailman/listinfo/use-revolution >> > > > > > > _______________________________________________ > use-revolution mailing list > [email protected] > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution _______________________________________________ use-revolution mailing list [email protected] Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
