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I'm going to start a new series of training on the format of "Today I Learned" or T.I.L.. Each will be on a specific topic. So what is a gcurve in DMIS? Gcurve is the definition of a curve or slice through a part that we will measure. Command Syntax:

F(name)=FEAT/GCURVE, coord, x(r), y(a), z(h), i, j, k Parameters:

coord = either CART rectangular coordinates or POL polar coordinates

x(r) = X coordinate (R- represents radius if the coord option is POL) position of the curve

y(a) = Y coordinate (A- represents Angle if the coord option is POL) position of the curve

z(h) = Z coordinate(H- represents Height if the coord option is POL) position of the curve

i = X vector component of the plane of the curve

j = Y vector component of the plane of the curve

k = Z vector component of the plane of the curve

 

Here is how to define the curve:

F(Curve1)=FEAT/GCURVE, CART, 0, 5.25, 8.55, 1 , 0, 0

 

This example defines the curve feature whose best fit nominal center is X=0, Y=5.25, and Z at 8.55. Notice that the plane of the curve or the i, j, k vector is in X (1, 0, 0) meaning that a slice has been cut through the part in the X plane in order to define the curve

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