lines by bearing

[rmk]

we often have to draw legal descriptions that are in chains instead of feet. is it possible to create
an expression or routine in civil 3d to automatically calculate the length in feet simply by keying in the length in chains?

and if so, how would i go about creating that.

[Ian Philpott]

I have not worked out how to automate it, but you can use AutoLisp expressions when entering the length. So say your length is 4 chains the expression would be

Left parenthesis
Operator
Space
Distance in chains
Space
Conversion factor
Right parenthesis

(* 4 66)

This will draw a line of 264 feet. Should anywhere a length would be entered. I'm sure there's some coders out there that can convert that to a custom command

[rmk]

thanks Ian, that's pretty cool.

[Tom Beauford]

I'd draw it with chains, then xref it into another drawing scaling it to feet. No calculations required.