Package com.google.zxing
Class ResultPoint
- java.lang.Object
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- com.google.zxing.ResultPoint
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- Direct Known Subclasses:
AlignmentPattern
,FinderPattern
public class ResultPoint extends java.lang.Object
Encapsulates a point of interest in an image containing a barcode. Typically, this would be the location of a finder pattern or the corner of the barcode, for example.
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Constructor Summary
Constructors Constructor Description ResultPoint(float x, float y)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static float
crossProductZ(ResultPoint pointA, ResultPoint pointB, ResultPoint pointC)
Returns the z component of the cross product between vectors BC and BA.static float
distance(ResultPoint pattern1, ResultPoint pattern2)
boolean
equals(java.lang.Object other)
float
getX()
float
getY()
int
hashCode()
static void
orderBestPatterns(ResultPoint[] patterns)
Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC and BC is less than AC, and the angle between BC and BA is less than 180 degrees.java.lang.String
toString()
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Method Detail
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getX
public final float getX()
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getY
public final float getY()
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equals
public final boolean equals(java.lang.Object other)
- Overrides:
equals
in classjava.lang.Object
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hashCode
public final int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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toString
public final java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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orderBestPatterns
public static void orderBestPatterns(ResultPoint[] patterns)
Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC and BC is less than AC, and the angle between BC and BA is less than 180 degrees.- Parameters:
patterns
- array of threeResultPoint
to order
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distance
public static float distance(ResultPoint pattern1, ResultPoint pattern2)
- Parameters:
pattern1
- first patternpattern2
- second pattern- Returns:
- distance between two points
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crossProductZ
private static float crossProductZ(ResultPoint pointA, ResultPoint pointB, ResultPoint pointC)
Returns the z component of the cross product between vectors BC and BA.
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