Parameter Property
Syntax
CWIMAQDiscriminationData.Parameter Index
Data Type
You can use the following constants with this data type:
- cwimaqParticleArea—Surface area of the particle in pixels.
- cwimaqParticleAreaCalibrated—Surface area in user-defined units.
- cwimaqParticleAreaScanned—Surface area of the image in user-defined units.
- cwimaqParticleAreaTotal—Total surface area occupied by a particle and its holes in user-defined units.
- cwimaqParticleCenterMassX—X-coordinate of the center of gravity of the particle.
- cwimaqParticleCenterMassY—Y-coordinate of the center of gravity of the particle.
- cwimaqParticleCompactness—Compactness factor--particle area/(height × width).
- cwimaqParticleDiagonal—Diagonal of an equivalent rectangle in user-defined units.
- cwimaqParticleEllipseMajor—Length in calibrated units of the major axis of an ellipse that has the same area and perimeter as the particle.
- cwimaqParticleEllipseMinor—Length in calibrated units of the minor axis of an ellipse that has the same area and perimeter as the particle.
- cwimaqParticleElongation—Elongation factor—max intercept/mean perpendicular intercept.
- cwimaqParticleEquEllipseMinor—Length of the minor axis of an ellipse that has the same area as the particle and a major axis equal to half the max intercept of the particle.
- cwimaqParticleHeywood—Particle perimeter/perimeter of a circle with the same area as the particle.
- cwimaqParticleHoleArea—Total surface area of all holes in user-defined units.
- cwimaqParticleHoleNumber—Number of holes in the particle.
- cwimaqParticleHolePerimeter—Total perimeter length of all the holes in a particle in user-defined units.
- cwimaqParticleHydraulicRadius—Hydraulic radius in user-defined units--particle area / particle perimeter.
- cwimaqParticleIXX—Inertia matrix coefficient in XX.
- cwimaqParticleIXY—Inertia matrix coefficient in XY.
- cwimaqParticleIYY—Inertia matrix coefficient in YY.
- cwimaqParticleMaxIntercept—Length of longest segment of the convex hull.
- cwimaqParticleMaxSegment—Length of longest horizontal line segment.
- cwimaqParticleMaxSegmentX—Leftmost x-coordinate of longest horizontal line segment.
- cwimaqParticleMaxSegmentY—Leftmost y-coordinate of longest horizontal line segment.
- cwimaqParticleMeanChordX—Mean length of horizontal segments.
- cwimaqParticleMeanChordY—Mean length of vertical segments.
- cwimaqParticleMeanIntercept—Mean length of the chords in a particle perpendicular to the max intercept.
- cwimaqParticleOrientation—The orientation based on the inertia of the pixels in the particle. For more information, refer to Chapter 10, Particle Measurements, of the NI Vision Concepts Manual.
- cwimaqParticlePerimeter—Perimeter length of a particle in user-defined units.
- cwimaqParticleProjectionX—The length of the particle when projected onto the x-axis.
- cwimaqParticleProjectionY—The length of the particle when projected onto the y-axis.
- cwimaqParticleRatioAreaScanned—Ratio, expressed as a percent, of the total surface area (holes and particle) in relation to the image.
- cwimaqParticleRatioAreaTotal—Ratio of the surface area of the particle to the total surface area (holes and particle).
- cwimaqParticleRatioEquEllipse—Fraction of the major axis to the minor axis of the equivalent ellipse.
- cwimaqParticleRatioRect—Ratio of RectBigSide to RectSmallSide.
- cwimaqParticleRectBigSide—Length of the long side of a rectangle having the same area and perimeter as the particle in user-defined units.
- cwimaqParticleRectBottom—Bottom edge of the bounding rectangle.
- cwimaqParticleRectHeight—Height of the bounding rectangle in user-defined units.
- cwimaqParticleRectLeft—Left edge of the bounding rectangle.
- cwimaqParticleRectRight—Right edge of the bounding rectangle.
- cwimaqParticleRectSmallSide—Length of the short side of a rectangle having the same area and perimeter as the particle in user-defined units.
- cwimaqParticleRectTop—Top edge of the bounding rectangle.
- cwimaqParticleRectWidth—Width of the bounding rectangle in user-defined units.
- cwimaqParticleSigmaX—Sum of the particle pixels on the x-axis.
- cwimaqParticleSigmaXX—Sum of the particle pixels on the x-axis squared.
- cwimaqParticleSigmaXY—Sum of the particle pixels on the x-axis and y-axis.
- cwimaqParticleSigmaY—Sum of the particle pixels on the y-axis.
- cwimaqParticleSigmaYY—Sum of the particle pixels on the y-axis squared.
- cwimaqParticleTypeFactor—A complex factor relating the surface area to the moment of inertia.
- cwimaqParticleWaddelDisk—Diameter of the disk having the same area as the particle in user-defined units.
Purpose
Obsolete—Use CWIMAQParticleSelectionDataItem.Parameter instead.
Coefficient to select.
Remarks
Not all values of CWIMAQParticleParameters are valid for this property. The following values are valid:
| cwimaqParticleArea |
| cwimaqParticleAreaCalibrated |
| cwimaqParticleHoleNumber |
| cwimaqParticleHoleArea |
| cwimaqParticleRectLeft |
| cwimaqParticleRectTop |
| cwimaqParticleRectRight |
| cwimaqParticleRectBottom |
| cwimaqParticleMaxSegment |
| cwimaqParticleMaxSegmentX |
| cwimaqParticleMaxSegmentY |
| cwimaqParticlePerimeter |
| cwimaqParticleHolePerimeter |
| cwimaqParticleSigmaX |
| cwimaqParticleSigmaY |
| cwimaqParticleSigmaXX |
| cwimaqParticleSigmaYY |
| cwimaqParticleSigmaXY |
| cwimaqParticleProjectionX |
| cwimaqParticleProjectionY |
Parameters
Index As Long
The index of the object in the report. The index is one-based.