# Re: OT Re: Constructed maps

From: | Lars Finsen <lars.finsen@...> |

Date: | Monday, January 14, 2008, 15:18 |

Den 11. jan. 2008 kl. 20.50 skreiv Roger Mills:
> Are there formulae for drawing those triangular shapes with curved
> sides?

If you'd like to do this by hand, try y = (6.28 x cos(x/r)) / n,
where y is the width of the wedge at x, r is the radius of the globe,
and n is the number of wedges. Make sure cos calculates in radians.
No wedge cut from flat paper will fit perfectly over a globe, but the
fit gets better the more wedges you use. Wetting the paper will
probably make it a little more stretchable, depending on the type of
paper, and easier to fit.
LEF

### Reply