- java.lang.Object
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- org.apache.lucene.geo.Polygon2D
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- All Implemented Interfaces:
Component2D
final class Polygon2D extends java.lang.Object implements Component2D
2D polygon implementation represented as a balanced interval tree of edges.Loosely based on the algorithm described in http://www-ma2.upc.es/geoc/Schirra-pointPolygon.pdf.
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.apache.lucene.geo.Component2D
Component2D.WithinRelation
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Field Summary
Fields Modifier and Type Field Description protected Component2D
holes
tree of holes, or nullprivate double
maxX
maximum X of this geometry's bounding box areaprivate double
maxY
maximum Y of this geometry's bounding box areaprivate double
minX
minimum X of this geometry's bounding box areaprivate double
minY
minimum Y of this geometry's bounding box area(package private) EdgeTree
tree
Edges of the polygon represented as a 2-d interval tree.
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Constructor Summary
Constructors Modifier Constructor Description private
Polygon2D(double minX, double maxX, double minY, double maxY, double[] x, double[] y, Component2D holes)
private
Polygon2D(Polygon polygon, Component2D holes)
private
Polygon2D(XYPolygon polygon, Component2D holes)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
contains(double x, double y)
Returns true if the point is contained within this polygon.boolean
containsLine(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY)
return true if this component2D contains the provided line *boolean
containsTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY, double cX, double cY)
return true if this component2D contains the provided triangle *(package private) static Component2D
create(Polygon polygon)
Builds a Polygon2D from LatLon polygon(package private) static Component2D
create(XYPolygon polygon)
Builds a Polygon2D from XY polygondouble
getMaxX()
max X value for the component *double
getMaxY()
max Y value for the component *double
getMinX()
min X value for the component *double
getMinY()
min Y value for the component *boolean
intersectsLine(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY)
return true if this component2D intersects the provided line *boolean
intersectsTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY, double cX, double cY)
return true if this component2D intersects the provided triangle *private int
numberOfCorners(double minX, double maxX, double minY, double maxY)
PointValues.Relation
relate(double minX, double maxX, double minY, double maxY)
relates this component2D with a bounding box *Component2D.WithinRelation
withinLine(double minX, double maxX, double minY, double maxY, double aX, double aY, boolean ab, double bX, double bY)
Compute the within relation of this component2D with a line *Component2D.WithinRelation
withinPoint(double x, double y)
Compute the within relation of this component2D with a point *Component2D.WithinRelation
withinTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, boolean ab, double bX, double bY, boolean bc, double cX, double cY, boolean ca)
Compute the within relation of this component2D with a triangle *-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.geo.Component2D
containsLine, containsTriangle, intersectsLine, intersectsTriangle, withinLine, withinTriangle
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Field Detail
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minY
private final double minY
minimum Y of this geometry's bounding box area
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maxY
private final double maxY
maximum Y of this geometry's bounding box area
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minX
private final double minX
minimum X of this geometry's bounding box area
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maxX
private final double maxX
maximum X of this geometry's bounding box area
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holes
protected final Component2D holes
tree of holes, or null
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tree
final EdgeTree tree
Edges of the polygon represented as a 2-d interval tree.
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Constructor Detail
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Polygon2D
private Polygon2D(double minX, double maxX, double minY, double maxY, double[] x, double[] y, Component2D holes)
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Polygon2D
private Polygon2D(XYPolygon polygon, Component2D holes)
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Polygon2D
private Polygon2D(Polygon polygon, Component2D holes)
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Method Detail
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getMinX
public double getMinX()
Description copied from interface:Component2D
min X value for the component *- Specified by:
getMinX
in interfaceComponent2D
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getMaxX
public double getMaxX()
Description copied from interface:Component2D
max X value for the component *- Specified by:
getMaxX
in interfaceComponent2D
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getMinY
public double getMinY()
Description copied from interface:Component2D
min Y value for the component *- Specified by:
getMinY
in interfaceComponent2D
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getMaxY
public double getMaxY()
Description copied from interface:Component2D
max Y value for the component *- Specified by:
getMaxY
in interfaceComponent2D
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contains
public boolean contains(double x, double y)
Returns true if the point is contained within this polygon.See https://www.ecse.rpi.edu/~wrf/Research/Short_Notes/pnpoly.html for more information.
- Specified by:
contains
in interfaceComponent2D
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relate
public PointValues.Relation relate(double minX, double maxX, double minY, double maxY)
Description copied from interface:Component2D
relates this component2D with a bounding box *- Specified by:
relate
in interfaceComponent2D
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intersectsLine
public boolean intersectsLine(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY)
Description copied from interface:Component2D
return true if this component2D intersects the provided line *- Specified by:
intersectsLine
in interfaceComponent2D
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intersectsTriangle
public boolean intersectsTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY, double cX, double cY)
Description copied from interface:Component2D
return true if this component2D intersects the provided triangle *- Specified by:
intersectsTriangle
in interfaceComponent2D
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containsLine
public boolean containsLine(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY)
Description copied from interface:Component2D
return true if this component2D contains the provided line *- Specified by:
containsLine
in interfaceComponent2D
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containsTriangle
public boolean containsTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, double bX, double bY, double cX, double cY)
Description copied from interface:Component2D
return true if this component2D contains the provided triangle *- Specified by:
containsTriangle
in interfaceComponent2D
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withinPoint
public Component2D.WithinRelation withinPoint(double x, double y)
Description copied from interface:Component2D
Compute the within relation of this component2D with a point *- Specified by:
withinPoint
in interfaceComponent2D
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withinLine
public Component2D.WithinRelation withinLine(double minX, double maxX, double minY, double maxY, double aX, double aY, boolean ab, double bX, double bY)
Description copied from interface:Component2D
Compute the within relation of this component2D with a line *- Specified by:
withinLine
in interfaceComponent2D
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withinTriangle
public Component2D.WithinRelation withinTriangle(double minX, double maxX, double minY, double maxY, double aX, double aY, boolean ab, double bX, double bY, boolean bc, double cX, double cY, boolean ca)
Description copied from interface:Component2D
Compute the within relation of this component2D with a triangle *- Specified by:
withinTriangle
in interfaceComponent2D
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numberOfCorners
private int numberOfCorners(double minX, double maxX, double minY, double maxY)
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create
static Component2D create(Polygon polygon)
Builds a Polygon2D from LatLon polygon
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create
static Component2D create(XYPolygon polygon)
Builds a Polygon2D from XY polygon
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