Hello Mr. Roozbeh,

so in Tutorial 7 there is a table with lot of numbers, I dont understand from where to get... How I can drow a tunnel using "Draw Arc"? I want it do to with radius 5m but how? and it should be straight line a the bottom and at the first but then smooth arc in the middle.... From where I get these Points?

Start point
middle point
ending point

You have many there.

Thank you
Rebecka

Hi, in the menu Geometry -> Draw Arc

Thank you!