Complex poly math question.

[Anonymous]

Hey all,

I have a fairly complex math question (or at least for me). In a gdl object i want to draw a polygon that has 2 sides made from a curve and 2 sides a straight line. This is easy enough but i also want to fillet where they join, see sketch.

Does anyone know the how to work out the formula for this, i believe the formula lies in analytical geometry but is a bit beyond me.

P.S. I realise 2 lines can be filleted using status codes using poly_b but i need to know the start, end and centre points of the fillet when a straight line and curve intersect to use this.

Thanks for any help

[Anonymous]

LiHigh wrote:

You are right!

The Fix:

!-----------------------------------------
r2 = r1 + d
u = ASN(f/(r2-f))
w = ASN(f/(r1+f))
...

Thanks again guys for the solution.

LiHigh, do you mind if i post this and illustration on www.gdldeveloper.com aswell. I think others will find this very useful.

[LiHigh]

Mark wrote:

Thanks again guys for the solution.

LiHigh, do you mind if i post this and illustration on www.gdldeveloper.com aswell. I think others will find this very useful.

No, I don't mind.