Creating complex graphic objects

[David Bovill]

Hi James thanks for the pointer - good to have in the library

2009/4/2 James Hurley <jhurley0305 at sbcglobal.net>

>
>> Message: 8
>> Date: Thu, 2 Apr 2009 14:52:04 +0100
>> From: David Bovill <david at vaudevillecourt.tv>
>> Subject: Creating complex graphic objects
>> To: How to use Revolution <use-revolution at lists.runrev.com>
>> Message-ID:
>>        <c1c5836b0904020652u7308dd7ie2f64073c08aa30 at mail.gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1
>>
>> I've a couple of shapes that I need to create for an app that lend
>> themselves to the use of the graphic control - because I want them at
>> various sizes and also because they use "markers" on a graphic shape. The
>> problems is the complexity of tweaking the points by hand. I know of
>> experiments importing geometry from apps like Illustrator - but was
>> wandering if anyone has any examples / a library of shapes or techniques
>> to
>> make this easier?
>>
>> For instance the shapes I need are "stars" - that I can dynamically
>> colour.
>> By roughly drawing a star and then:
>>
>> set the editmode of the selectedobject to "polygon"
>>
>> I can tweak the shape manually which helps a lot.
>>
>>  But when it comes to more complex structures it would be good to draw
>> them
>> in illustrator and import the geometry.
>>
>> For instance - I also want to create circles with variable numbers of
>> evenly
>> spaced marker points(iIdeally the arcs would have arrows on them to
>> indicate
>> a clockwise flow). It would be "nice" not to have to create these as
>> images
>> at different scales and import them from an external app - but AFAIK its
>> not
>> really practical at the moment. Any suggestions?
>>
>>
>>
> David,
>
> You may want to consider Turtle Graphics. (See http://
> www.jamesphurley.com/runrev.html)
>
> Here, for example is the script for drawing a circle with evenly space
> arrows along the perimeter:
>
> on mouseUp
>   put 90 into tNumPoints
>   startTurtle
>
>   repeat with i = 1 to tNumPoints
>      forward 10
>      left 360/tNumPoints
>      if i mod 10 is 0 then
>         drawArrow 10,15
>      end if
>   end repeat
>
>   choose the browse tool
> end mouseUp
>
> on drawArrow tLength,tAngle
>   right tAngle
>   back tLength
>   forward tLength
>   left 2*tAngle
>   back tLength
>   forward tLength
>   right tAngle
> end drawArrow
>
> You can create either an image or a vector graphic. Stars would be easy as
> well.
>
> JIm Hurley
>
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