uk.ac.leeds.ccg.andyt.vector.geometry
Class LineSegment2D
java.lang.Object
uk.ac.leeds.ccg.andyt.vector.geometry.AbstractGeometry2D
uk.ac.leeds.ccg.andyt.vector.geometry.LineSegment2D
- All Implemented Interfaces:
- java.lang.Comparable
public class LineSegment2D
- extends AbstractGeometry2D
- implements java.lang.Comparable
A stright line connecting two points. The line has a direction as given by
the order of the points. Two such points are the same iff their start and
end points are the same.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
_Start_Point2D
public Point2D _Start_Point2D
_End_Point2D
public Point2D _End_Point2D
LineSegment2D
public LineSegment2D()
LineSegment2D
public LineSegment2D(Point2D _StartPoint,
Point2D _EndPoint)
LineSegment2D
public LineSegment2D(Point2D _StartPoint,
Point2D _EndPoint,
int _DecimalPlacePrecision,
java.math.RoundingMode _RoundingMode)
LineSegment2D
public LineSegment2D(LineSegment2D a_LineSegment2D)
toString
public java.lang.String toString()
- Overrides:
toString
in class AbstractGeometry2D
compareTo
public int compareTo(java.lang.Object o)
- Default is 1.
Calls compareTo on the _StartPoint.
- Specified by:
compareTo
in interface java.lang.Comparable
getLength
public java.math.BigDecimal getLength(int numberOfDecimalPlaces)
getEnvelope2D
public Envelope2D getEnvelope2D()
- Specified by:
getEnvelope2D
in class AbstractGeometry2D
getIntersects
public boolean getIntersects(LineSegment2D a_LineSegment2D)
- Intersection done by first seeing if Envelope intersection....
- Parameters:
aPoint
-
- Returns:
- true iff a_LineSegment2D intersects this.
getIntersects
public boolean getIntersects(Point2D a_Point2D)
- Intersection done by calculating angle or gradient of the line and
comparing this with that of a_Point.
- Parameters:
aPoint
-
- Returns:
- true iff a_Point2D intersects this.
getGradient
protected java.math.BigDecimal getGradient()
isOnGradient
protected boolean isOnGradient(Point2D a_Point2D)
getOrderedLineSegment2D
public LineSegment2D getOrderedLineSegment2D()
getIntersection
public AbstractGeometry2D getIntersection(LineSegment2D a_LineSegment2D)
- Returns:
- null if this does not intersect a_LineSegment2D; a Point2D if
this intersects a_LineSegment2D at a point; and, a LineSegment2D if this
intersects a_LineSegment2D in a line.
applyDecimalPlacePrecision
public void applyDecimalPlacePrecision()
- Specified by:
applyDecimalPlacePrecision
in class AbstractGeometry2D