Arguments

grading  (ename or vla-object) the TinGrading entity
dist  (number, integer or double)  the 'mid-ordinate distance' value to be used

Return

T or NIL

Example

Remarks

see (tingr:get-midOrdinateDist);

the mid-ordinate distance is the distance of the curve's midpoint, to the arc center; similar to arc's bulge; used as a kind of tolerance;
this curve rasterisation/smoothing tolerance only applies to curve-based constraints;
default value is 0.0, which means automatic tolerance chosen by the TinGrading implementation;
see https://civil3dplus.wordpress.com/2012/12/23/surfaces-and-the-mid-ordinate-distance/
typical values are in range : 0.01 - 0.05 (meter), 0.5 - 1.0 (inch)