I need to measure the perimeter of a shape that is a combination of an ellipse and a rounded slot accurately on the CMM. If I try measuring the feature as an ellipse or rounded slot, it will best fit the points, which will not give me the dimension I need to capture.
Not sure to understand, you're trying to measure the length of the perimeter ?
With a scanning head, scan the perimeter with a high density of hits (linear closed scan).
Then :
ASSIGN/V1=SCN1.HIT[1..(SCN1.NUMHITS-1)].XYZ
ASSIGN/V2=SCN1.HIT[2..SCN1.NUMHITS].XYZ
ASSIGN/V3=SQRT(DOT(V2-V1,V2-V1))
ASSIGN/PERIMETER=SUM(V3)
Not sure to understand, you're trying to measure the length of the perimeter ?
With a scanning head, scan the perimeter with a high density of hits (linear closed scan).
Then :
ASSIGN/V1=SCN1.HIT[1..(SCN1.NUMHITS-1)].XYZ
ASSIGN/V2=SCN1.HIT[2..SCN1.NUMHITS].XYZ
ASSIGN/V3=SQRT(DOT(V2-V1,V2-V1))
ASSIGN/PERIMETER=SUM(V3)
