Drag a Graphic Tool

[Roger Guay]

Great idea Jim, although, I did so want to make use of the dragSpeed 
thing to have precise control of the trace.  Turtle Graphics will 
provide a great compromise!

Thanks, Roger


On Nov 29, 2004, at 8:01 AM, use-revolution-request at lists.runrev.com 
wrote:

> Actually you can set the "linesize" of the line or polygon tool; you
> can have both your arrow and line size.
>
> What you need apparently is more intermediate points in order to
> control rate of drawing between end points. One way to do this would
> be with, you guessed it, Turtle Graphics. (You would want the version
> that does vector graphics, not bit map.) For example, you could
> control the motion between any two points A and B as follows:
>
> on mouseUP
>    put 0,0 into A
>    put 300,300 into B
>    startTurtle
>    setXY A
>    setheading direction(B)
>    put distance(B) into d
>    put 3 into s --Or whatever works for you
>    repeat round(d/s) times
>      forward s
>      --Perhaps a "wait" here
>    end repeat
>    setxy B --Just to take care of the rounding error
> end mouseUP
>
> And you could iterate this to take you through a sequence of points.
>
> Jim