National Instruments IMAQTM User Manual
Page 50

Chapter 4
Performing Particle Analysis
IMAQ Vision for Visual Basic User Manual
4-8
ni.com
cwimaqMeasurementMaxFeretDiameterStartY
Y-coordinate of the start of the line 
segment connecting the two perimeter 
points that are the furthest apart. 
cwimaqMeasurementMaxHorizSegmentLengthLeft
X-coordinate of the leftmost pixel in the 
longest row of contiguous pixels in the 
particle. 
cwimaqMeasurementMaxHorizSegmentLengthRight
X-coordinate of the rightmost pixel in 
the longest row of contiguous pixels in 
the particle. 
cwimaqMeasurementMaxHorizSegmentLengthRow
Y-coordinate of all of the pixels in the 
longest row of contiguous pixels in the 
particle. 
cwimaqMeasurementMomentOfInertiaXX
The moment of inertia in the X direction 
twice. 
cwimaqMeasurementMomentOfInertiaXXX
The moment of inertia in the X direction 
three times. 
cwimaqMeasurementMomentOfInertiaXXY
The moment of inertia in the X direction 
twice and the Y direction once. 
cwimaqMeasurementMomentOfInertiaXY
The moment of inertia in the X and Y 
directions. 
cwimaqMeasurementMomentOfInertiaXYY
The moment of inertia in the X direction 
once and the Y direction twice. 
cwimaqMeasurementMomentOfInertiaYY
The moment of inertia in the Y direction 
twice. 
cwimaqMeasurementMomentOfInertiaYYY
The moment of inertia in the Y direction 
three times. 
cwimaqMeasurementNormMomentOfInertiaXX
The normalized moment of inertia in the 
X direction twice. 
cwimaqMeasurementNormMomentOfInertiaXXX
The normalized moment of inertia in the 
X direction three times. 
cwimaqMeasurementNormMomentOfInertiaXXY
The normalized moment of inertia in the 
X direction twice and the Y direction 
once. 
Table 4-1. Measurement Types (Continued)
Measurement
Description
