Easy way to make a spiral shape from spline

[Krypton]

Hi all,

Wondering if anyone knows of an easy way to create spiral paths with the splines programatically ?  
The spirals I'm thinking about is of these types.

https://www.google.co.th/search?q=spiral...Il9W8Gk1jM:

Cheers

[_Aka_]

There is already a Spiral in the base Shapes of Curvy, but it has a constant radius, unlike what you seem to ask for.
Having a variable radius spiral would be a good addition to Curvy. I add it to the backlog.