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java.lang.Object org.apache.commons.math3.geometry.partitioning.AbstractRegion<Euclidean1D,Euclidean1D> org.apache.commons.math3.geometry.euclidean.oned.IntervalsSet
public class IntervalsSet
This class represents a 1D region: a set of intervals.
Nested Class Summary 

Nested classes/interfaces inherited from interface org.apache.commons.math3.geometry.partitioning.Region 

Region.Location 
Constructor Summary  

IntervalsSet()
Build an intervals set representing the whole real line. 

IntervalsSet(BSPTree<Euclidean1D> tree)
Build an intervals set from an inside/outside BSP tree. 

IntervalsSet(Collection<SubHyperplane<Euclidean1D>> boundary)
Build an intervals set from a Boundary REPresentation (Brep). 

IntervalsSet(double lower,
double upper)
Build an intervals set corresponding to a single interval. 
Method Summary  

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. 
Methods inherited from class org.apache.commons.math3.geometry.partitioning.AbstractRegion 

applyTransform, checkPoint, checkPoint, contains, copySelf, getBarycenter, getBoundarySize, getSize, getTree, intersection, isEmpty, isEmpty, setBarycenter, setSize, side 
Methods inherited from class java.lang.Object 

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Constructor Detail 

public IntervalsSet()
public IntervalsSet(double lower, double upper)
lower
 lower bound of the interval, must be lesser or equal
to upper
(may be Double.NEGATIVE_INFINITY
)upper
 upper bound of the interval, must be greater or equal
to lower
(may be Double.POSITIVE_INFINITY
)public IntervalsSet(BSPTree<Euclidean1D> 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 constants
Boolean.TRUE
and Boolean.FALSE
tree
 inside/outside BSP tree representing the intervals setpublic IntervalsSet(Collection<SubHyperplane<Euclidean1D>> boundary)
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.
boundary
 collection of boundary elementsMethod Detail 

public IntervalsSet buildNew(BSPTree<Euclidean1D> tree)
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 constants
Boolean.TRUE
and Boolean.FALSE
. The
tree also must have either null internal nodes or
internal nodes representing the boundary as specified in the
getTree
method).
buildNew
in interface Region<Euclidean1D>
buildNew
in class AbstractRegion<Euclidean1D,Euclidean1D>
tree
 inside/outside BSP tree representing the new region
protected void computeGeometricalProperties()
The properties to compute are the barycenter and the size.
computeGeometricalProperties
in class AbstractRegion<Euclidean1D,Euclidean1D>
public double getInf()
Double.NEGATIVE_INFINITY
if the instance doesn't
have any low bound, Double.POSITIVE_INFINITY
if the
instance is empty)public double getSup()
Double.POSITIVE_INFINITY
if the instance doesn't
have any high bound, Double.NEGATIVE_INFINITY
if the
instance is empty)public List<Interval> asList()
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 to
Double.NEGATIVE_INFINITY
. If the intervals set has
no upper limit, the last interval will have its upper bound equal
to Double.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 beeing
infinite.
Interval
elements


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