Why does user want to know MAX and MIN for 2D distance between line and line?
 

To know the range of distance over the length of the line and not just at the centroid.

回复: Why does user want to know MAX and MIN for 2D distance between line and line?
 

Why 2D Distance has MAX and MIN that are larger than the MEAS value for line to line?
> The 2 Dimensional option calculates the two-dimensional distance between features. All features used to calculate the 2D distance are first projected into the current work plane before the distance is computed. PC-DMIS computes the maximum, minimum, and average distances between the two features. If the distance is between two lines or planes, the maximum, minimum and average are computed using the measurement point data. (Verify that the distance type is set to 2 Dimensional.)
For line1 to line2 in the example
1) 2D distance (meas) = projection {distance [centroid of line1, centroid of line2], axis}
2) MAX 2D distance = projection {distance [start Pt, centroid of line2], axis}
2) MIN 2D distance = projection {distance [end Pt, centroid of line2], axis}