Class IntervalsSet
 java.lang.Object

 org.hipparchus.geometry.partitioning.AbstractRegion<Euclidean1D,Euclidean1D>

 org.hipparchus.geometry.euclidean.oned.IntervalsSet

 All Implemented Interfaces:
Iterable<double[]>
,Region<Euclidean1D>
public class IntervalsSet extends AbstractRegion<Euclidean1D,Euclidean1D> implements Iterable<double[]>
This class represents a 1D region: a set of intervals.


Nested Class Summary

Nested classes/interfaces inherited from interface org.hipparchus.geometry.partitioning.Region
Region.Location


Constructor Summary
Constructors Constructor Description IntervalsSet(double tolerance)
Build an intervals set representing the whole real line.IntervalsSet(double lower, double upper, double tolerance)
Build an intervals set corresponding to a single interval.IntervalsSet(Collection<SubHyperplane<Euclidean1D>> boundary, double tolerance)
Build an intervals set from a Boundary REPresentation (Brep).IntervalsSet(BSPTree<Euclidean1D> tree, double tolerance)
Build an intervals set from an inside/outside BSP tree.

Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description List<Interval>
asList()
Build an ordered list of intervals representing the instance.IntervalsSet
buildNew(BSPTree<Euclidean1D> tree)
Build a region using the instance as a prototype.protected void
computeGeometricalProperties()
Compute some geometrical properties.double
getInf()
Get the lowest value belonging to the instance.double
getSup()
Get the highest value belonging to the instance.Iterator<double[]>
iterator()
BoundaryProjection<Euclidean1D>
projectToBoundary(Point<Euclidean1D> point)
Project a point on the boundary of the region.
Methods inherited from class org.hipparchus.geometry.partitioning.AbstractRegion
applyTransform, checkPoint, checkPoint, checkPoint, checkPoint, contains, copySelf, getBarycenter, getBoundarySize, getSize, getTolerance, getTree, intersection, isEmpty, isEmpty, isFull, isFull, setBarycenter, setBarycenter, setSize

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable
forEach, spliterator




Constructor Detail

IntervalsSet
public IntervalsSet(double tolerance)
Build an intervals set representing the whole real line. Parameters:
tolerance
 tolerance below which points are considered identical.

IntervalsSet
public IntervalsSet(double lower, double upper, double tolerance)
Build an intervals set corresponding to a single interval. Parameters:
lower
 lower bound of the interval, must be lesser or equal toupper
(may beDouble.NEGATIVE_INFINITY
)upper
 upper bound of the interval, must be greater or equal tolower
(may beDouble.POSITIVE_INFINITY
)tolerance
 tolerance below which points are considered identical.

IntervalsSet
public IntervalsSet(BSPTree<Euclidean1D> tree, double tolerance)
Build an intervals set from an inside/outside BSP tree.The leaf nodes of the BSP tree must have a
Boolean
attribute representing the inside status of the corresponding cell (true for inside cells, false for outside cells). In order to avoid building too many small objects, it is recommended to use the predefined constantsBoolean.TRUE
andBoolean.FALSE
 Parameters:
tree
 inside/outside BSP tree representing the intervals settolerance
 tolerance below which points are considered identical.

IntervalsSet
public IntervalsSet(Collection<SubHyperplane<Euclidean1D>> boundary, double tolerance)
Build an intervals set from a Boundary REPresentation (Brep).The boundary is provided as a collection of
subhyperplanes
. Each subhyperplane has the interior part of the region on its minus side and the exterior on its plus side.The boundary elements can be in any order, and can form several nonconnected sets (like for example polygons with holes or a set of disjoints polyhedrons considered as a whole). In fact, the elements do not even need to be connected together (their topological connections are not used here). However, if the boundary does not really separate an inside open from an outside open (open having here its topological meaning), then subsequent calls to the
checkPoint
method will not be meaningful anymore.If the boundary is empty, the region will represent the whole space.
 Parameters:
boundary
 collection of boundary elementstolerance
 tolerance below which points are considered identical.


Method Detail

buildNew
public IntervalsSet buildNew(BSPTree<Euclidean1D> tree)
Build a region using the instance as a prototype.This method allow to create new instances without knowing exactly the type of the region. It is an application of the prototype design pattern.
The leaf nodes of the BSP tree must have a
Boolean
attribute representing the inside status of the corresponding cell (true for inside cells, false for outside cells). In order to avoid building too many small objects, it is recommended to use the predefined constantsBoolean.TRUE
andBoolean.FALSE
. The tree also must have either null internal nodes or internal nodes representing the boundary as specified in thegetTree
method). Specified by:
buildNew
in interfaceRegion<Euclidean1D>
 Specified by:
buildNew
in classAbstractRegion<Euclidean1D,Euclidean1D>
 Parameters:
tree
 inside/outside BSP tree representing the new region Returns:
 the built region

computeGeometricalProperties
protected void computeGeometricalProperties()
Compute some geometrical properties.The properties to compute are the barycenter and the size.
 Specified by:
computeGeometricalProperties
in classAbstractRegion<Euclidean1D,Euclidean1D>

getInf
public double getInf()
Get the lowest value belonging to the instance. Returns:
 lowest value belonging to the instance
(
Double.NEGATIVE_INFINITY
if the instance doesn't have any low bound,Double.POSITIVE_INFINITY
if the instance is empty)

getSup
public double getSup()
Get the highest value belonging to the instance. Returns:
 highest value belonging to the instance
(
Double.POSITIVE_INFINITY
if the instance doesn't have any high bound,Double.NEGATIVE_INFINITY
if the instance is empty)

projectToBoundary
public BoundaryProjection<Euclidean1D> projectToBoundary(Point<Euclidean1D> point)
Project a point on the boundary of the region. Specified by:
projectToBoundary
in interfaceRegion<Euclidean1D>
 Overrides:
projectToBoundary
in classAbstractRegion<Euclidean1D,Euclidean1D>
 Parameters:
point
 point to check Returns:
 projection of the point on the boundary

asList
public List<Interval> asList()
Build an ordered list of intervals representing the instance.This method builds this intervals set as an ordered list of
Interval
elements. If the intervals set has no lower limit, the first interval will have its low bound equal toDouble.NEGATIVE_INFINITY
. If the intervals set has no upper limit, the last interval will have its upper bound equal toDouble.POSITIVE_INFINITY
. An empty tree will build an empty list while a tree representing the whole real line will build a one element list with both bounds being infinite. Returns:
 a new ordered list containing
Interval
elements

