National Instruments IMAQ Vision for LabWindows TM /CVI - Manual (Page 47)

Chapter 4 Performing Particle Analysis
© National Instruments Corporation 4-5 IMAQ Vision for LabWindows/CVI User Manual
IMAQ_MT_BOUNDING_RECT_LEFT X-coordinate of the leftmost particle
point
IMAQ_MT_BOUNDING_RECT_RIGHT X-coordinate of the rightmost
particle point
IMAQ_MT_BOUNDING_RECT_HEIGHT Distance between the y-coordinate
of highest particle point and the
y-coordinate of the lowest particle
point
IMAQ_MT_BOUNDING_RECT_WIDTH Distance between the x-coordinate
of the leftmost particle point and the
x-coordinate of the rightmost particle
point
IMAQ_MT_BOUNDING_RECT_DIAGONAL Distance between opposite corners of
the bounding rectangle
IMAQ_MT_CENTER_OF_MASS_X X-coordinate of the point
representing the average position
of the total particle mass assuming
every point in the particle has a
constant density
IMAQ_MT_CENTER_OF_MASS_Y Y-coordinate of the point
representing the average position
of the total particle mass assuming
every point in the particle has a
constant density
IMAQ_MT_COMPACTNESS_FACTOR Area divided by the product of
bounding rectangle width and
bounding rectangle height
IMAQ_MT_CONVEX_HULL_AREA Area of the smallest convex polygon
containing all points in the particle
IMAQ_MT_CONVEX_HULL_PERIMETER Perimeter of the smallest convex
polygon containing all points in
the particle
Table 4-1. Particle Measurements (Continued)
Measurement Description