How to determine the lenght of an arc

brandy20

I'd like to draw an arc of a predetermined lenght. Is there a simple way or a plugin to get it quickly without doing math every time?

Thanks,

Luca

mac1

@brandy20 said:

I'd like to draw an arc of a predetermined lenght. Is there a simple way or a plugin to get it quickly without doing math every time?

Thanks,

Luca

I doubt it since there are an infinite number of arcs you can draw at a predetermined length. Remember you need both the angle and radius.

Gaieus

Well, the native SU arc tool allows specifying the chord length, the segment count and the bulge or radius but not the arc length.

Knowing the chord however, you could define (mathematically) an arc length, too so I guess it could be done with ruby (but please, do not ask mehow)

TIG

Try this ArcByTools script http://forums.sketchucation.com/viewtopic.php?p=365402#p365402
It draws arcs of a specified radius/length/segments - calculating the swept-angle
or of a specified swept-angle/length/segments - calculating the radius.

brandy20

@gaieus said:

Well, the native SU arc tool allows specifying the chord length, the segment count and the bulge or radius but not the arc length.

Knowing the chord however, you could define (mathematically) an arc length, too so I guess it could be done with ruby (but please, do not ask mehow)

Yes, that's what I meant

@TIG: Thank you TIG, that's a useful plugin for me.

Luca

simon le bon

Hi,

I have to test this new Tig's tool which seems perfect for the purpose.

I just wanted to remind and connect readers with the same request I had in times and which can complete the purpose: Can i draw an arc with a specifying circumference value

And especially to focus on a calculator linked by Pilou

(clic the picture)

simon

brandy20

Hi Simon,

Thank you for this hint, it will be very useful, too!

Luca