Hi All,

Can anyone explain ( or point to an explanation ) of the maths behind a true position calculation, my gd & t knowledge is basic ish, when i put a true position calculation on say, a circle the reported true position error looks like roughly double what I would expect from looking at the component x,y and z errors.

I,m using cad++ 4.2mr1 btw.

thanks for any help

Can anyone explain ( or point to an explanation ) of the maths behind a true position calculation, my gd & t knowledge is basic ish, when i put a true position calculation on say, a circle the reported true position error looks like roughly double what I would expect from looking at the component x,y and z errors.

I,m using cad++ 4.2mr1 btw.

thanks for any help

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