National Instruments IMAQTM Manuel D’Utilisation
Chapter 4
Performing Particle Analysis
© National Instruments Corporation
4-5
cwimaqMeasurementAverageHorizSegmentLength
Average length of a horizontal segment
in the particle.
in the particle.
cwimaqMeasurementAverageVertSegmentLength
Average length of a vertical segment in
the particle.
the particle.
cwimaqMeasurementBoundingRectBottom
Y-coordinate of the lowest particle point.
cwimaqMeasurementBoundingRectDiagonal
Distance between opposite corners of
the bounding rectangle.
the bounding rectangle.
cwimaqMeasurementBoundingRectHeight
Distance between the Y-coordinate
of highest particle point and the
Y-coordinate of the lowest particle point.
of highest particle point and the
Y-coordinate of the lowest particle point.
cwimaqMeasurementBoundingRectLeft
X-coordinate of the leftmost particle
point.
point.
cwimaqMeasurementBoundingRectRight
X-coordinate of the rightmost particle
point.
point.
cwimaqMeasurementBoundingRectTop
Y-coordinate of highest particle point.
cwimaqMeasurementBoundingRectWidth
Distance between the X-coordinate
of the leftmost particle point and the
X-coordinate of the rightmost particle
point.
of the leftmost particle point and the
X-coordinate of the rightmost particle
point.
cwimaqMeasurementCenterMassX
X-coordinate of the point representing
the average position of the total particle
mass assuming every point in the
particle has a constant density.
the average position of the total particle
mass assuming every point in the
particle has a constant density.
cwimaqMeasurementCenterMassY
Y-coordinate of the point representing
the average position of the total particle
mass assuming every point in the
particle has a constant density.
the average position of the total particle
mass assuming every point in the
particle has a constant density.
cwimaqMeasurementCompactnessFactor
Area divided by the product of
Bounding Rect Width and Bounding
Rect Height.
Bounding Rect Width and Bounding
Rect Height.
cwimaqMeasurementConvexHullArea
Area of the smallest convex polygon
containing all points in the particle.
containing all points in the particle.
Table 4-1. Measurement Types (Continued)
Measurement
Description