java.lang.Object
java.awt.geom.Line2D
java.awt.geom.Line2D.Double
- All Implemented Interfaces:
- Shape,- Serializable,- Cloneable
- Enclosing class:
- Line2D
A line segment specified with double coordinates.
- Since:
- 1.2
- See Also:
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Nested Class SummaryNested classes/interfaces declared in class java.awt.geom.Line2DLine2D.Double, Line2D.Float
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Field SummaryFields
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionReturns a high precision and more accurate bounding box of theShapethan thegetBoundsmethod.getP1()Returns the startPoint2Dof thisLine2D.getP2()Returns the endPoint2Dof thisLine2D.doublegetX1()Returns the X coordinate of the start point in double precision.doublegetX2()Returns the X coordinate of the end point in double precision.doublegetY1()Returns the Y coordinate of the start point in double precision.doublegetY2()Returns the Y coordinate of the end point in double precision.voidsetLine(double x1, double y1, double x2, double y2) Sets the location of the end points of thisLine2Dto the specified double coordinates.Methods declared in class java.awt.geom.Line2Dclone, contains, contains, contains, contains, getBounds, getPathIterator, getPathIterator, intersects, intersects, intersectsLine, intersectsLine, linesIntersect, ptLineDist, ptLineDist, ptLineDist, ptLineDistSq, ptLineDistSq, ptLineDistSq, ptSegDist, ptSegDist, ptSegDist, ptSegDistSq, ptSegDistSq, ptSegDistSq, relativeCCW, relativeCCW, relativeCCW, setLine, setLine
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Field Details- 
x1public double x1The X coordinate of the start point of the line segment.- Since:
- 1.2
 
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y1public double y1The Y coordinate of the start point of the line segment.- Since:
- 1.2
 
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x2public double x2The X coordinate of the end point of the line segment.- Since:
- 1.2
 
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y2public double y2The Y coordinate of the end point of the line segment.- Since:
- 1.2
 
 
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Constructor Details- 
Doublepublic Double()Constructs and initializes a Line with coordinates (0, 0) → (0, 0).- Since:
- 1.2
 
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Doublepublic Double(double x1, double y1, double x2, double y2) Constructs and initializes aLine2Dfrom the specified coordinates.- Parameters:
- x1- the X coordinate of the start point
- y1- the Y coordinate of the start point
- x2- the X coordinate of the end point
- y2- the Y coordinate of the end point
- Since:
- 1.2
 
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DoubleConstructs and initializes aLine2Dfrom the specifiedPoint2Dobjects.- Parameters:
- p1- the start- Point2Dof this line segment
- p2- the end- Point2Dof this line segment
- Since:
- 1.2
 
 
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Method Details- 
getX1public double getX1()Returns the X coordinate of the start point in double precision.
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getY1public double getY1()Returns the Y coordinate of the start point in double precision.
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getP1Returns the startPoint2Dof thisLine2D.
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getX2public double getX2()Returns the X coordinate of the end point in double precision.
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getY2public double getY2()Returns the Y coordinate of the end point in double precision.
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getP2Returns the endPoint2Dof thisLine2D.
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setLinepublic void setLine(double x1, double y1, double x2, double y2) Sets the location of the end points of thisLine2Dto the specified double coordinates.
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getBounds2DReturns a high precision and more accurate bounding box of theShapethan thegetBoundsmethod. Note that there is no guarantee that the returnedRectangle2Dis the smallest bounding box that encloses theShape, only that theShapelies entirely within the indicatedRectangle2D. The bounding box returned by this method is usually tighter than that returned by thegetBoundsmethod and never fails due to overflow problems since the return value can be an instance of theRectangle2Dthat uses double precision values to store the dimensions.Note that the definition of insideness can lead to situations where points on the defining outline of the shapemay not be considered contained in the returnedboundsobject, but only in cases where those points are also not considered contained in the originalshape.If a pointis inside theshapeaccording to thecontains(point)method, then it must be inside the returnedRectangle2Dbounds object according to thecontains(point)method of thebounds. Specifically:shape.contains(p)requiresbounds.contains(p)If a pointis not inside theshape, then it might still be contained in theboundsobject:bounds.contains(p)does not implyshape.contains(p)- Specified by:
- getBounds2Din interface- Shape
- Returns:
- an instance of Rectangle2Dthat is a high-precision bounding box of theShape.
- Since:
- 1.2
- See Also:
 
 
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