Particle Analysis Report (G Dataflow)

Reference to the source image.

Boolean value that specifies the mode of connectivity used by the algorithm for particle detection.

The connectivity mode directly determines whether an adjacent pixel belongs to the same particle or a different particle.

Default: 8

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error	error in contains an error
If no error occurred before the node runs, the node begins execution normally. If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.	If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

Reference to the image input.

Array that returns a set of uncalibrated pixel measurements from the detected particles.

area

Area of the particle.

number of holes

Number of holes in the particle.

Holes as small as one pixel can be detected inside a particle.

bounding rect

Smallest rectangle with sides parallel to the x-axis and y-axis that completely encloses the particle.

center of mass

Point representing the average position of the total mass of the particle, assuming every point in the particle has a constant density.

center of mass can be located outside the particle if the particle is not convex.

orientation

Angle of the line passing through the particle center of mass with the lowest moment of inertia.

dimensions

Width and height of bounding rect.

Array that returns a set of calibrated real-world measurements from the detected particles.

If the image has no calibration information, uncalibrated pixel measurements are returned.

area

Area of the particle.

number of holes

Number of holes in the particle.

Holes as small as one pixel can be detected inside a particle.

bounding rect

Smallest rectangle with sides parallel to the x-axis and y-axis that completely encloses the particle.

center of mass

Point representing the average position of the total mass of the particle, assuming every point in the particle has a constant density.

center of mass can be located outside the particle if the particle is not convex.

orientation

Angle of the line passing through the particle center of mass with the lowest moment of inertia.

dimensions

Width and height of bounding rect.

Number of particles detected in the image.

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error	error in contains an error
If no error occurred before the node runs, the node begins execution normally. If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.	If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Boolean that indicates if the calibration information for a particle is valid.

valid calibration flags has one Boolean for each report in particle report (real-world). If the image has no calibration information, uncalibrated pixel measurements are returned. particle report (real-world) contains measurements for every particle regardless of whether the particle has valid or invalid calibration information.