Polarity Property

Syntax

CWIMAQEdgeReportItem.Polarity

Data Type

CWIMAQEdgePolarities

You can use the following constants with this data type:

• cwimaqEdgePolarityDarkToDark—Dark to dark. The leading edge has dark-to-light polarity, and the trailing edge has dark-to-light polarity.
  
• cwimaqEdgePolarityDarkToLight—Dark to light. The leading edge has a dark-to-light polarity, and the trailing edge has a light-to-dark polarity.
  
• cwimaqEdgePolarityLightToDark—Light to dark. The leading edge has a light-to-dark polarity, and the trailing edge has a dark-to-light polarity.
  
• cwimaqEdgePolarityLightToLight—Light to light. The leading edge has a light-to-dark polarity, and the trailing edge has a light-to-dark polarity.
  
• cwimaqEdgePolarityNone—None. Polarity is ignored.
  

Purpose

Polarity of the edge.

Remarks

Only two types of the CWIMAQEdgePolarities are returned by CWIMAQVision.FindEdges2:

• cwimaqEdgePolarityDarkToLight indicates a rising edge.
• cwimaqEdgePolarityLightToDark indicates a falling edge.

See Also

CWIMAQEdgePolarities

CWIMAQVision.FindEdges2