I am measuring a feature that is somewhat round but has lot of jagged edges. I want to use all of the areas to calculate the area. I am measuring this using hundreds of points. Anyone have any ideas ? I have searched for answers but can't seem to come up with any.
VinniUSMC at the rescue !
ASSIGN/SURFACE=SUM(SQRT(DOT(V5,V5))*SQRT(DOT(V6,V6))*SIN( DEG2RAD(ANGLEBETWEEN(V5,V6))))/2 !!!!!!!
V4 is the centroid of the scan, V5 and V6 are 2 arrays of vectors between hits and the centroid.
SQRT(DOT(V5,V5)) is an array of length of vectors, same for V6.
The norm of a cross product is also the area of the parallelogram formed by both vectors, and its (length of V5)*(length of V6)*(sin of anglre between V5 and V6) (math definition)
Thanks a lot Vinni !!!!!
(CTRL + C ; CTRL + V is sometimes too easy )
VinniUSMC, one of the "enhancements" should be a real cross product calculation.
Cross product of PC-DMIS gives a unit vector, but the real cross product gives interested results, like the area.
Thanks for your compliments !
VinniUSMC, one of the "enhancements" should be a real cross product calculation.
Cross product of PC-DMIS gives a unit vector, but the real cross product gives interested results, like the area.
Thanks for your compliments !
)
