Package org.apache.commons.math3.geometry.euclidean.threed

Class OutlineExtractor.BoundaryProjector

java.lang.Object

org.apache.commons.math3.geometry.euclidean.threed.OutlineExtractor.BoundaryProjector

All Implemented Interfaces:

BSPTreeVisitor<Euclidean3D>

Enclosing class:

OutlineExtractor

private class OutlineExtractor.BoundaryProjector
extends Object
implements BSPTreeVisitor<Euclidean3D>

Visitor projecting the boundary facets on a plane.

Nested Class Summary

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

BSPTreeVisitor.Order

Field Summary

Fields

Modifier and Type	Field	Description
private PolygonsSet	projected	Projection of the polyhedrons set on the plane.
private final double	tolerance	Tolerance below which points are considered identical.

Constructor Summary

Constructors

Constructor	Description
BoundaryProjector(double tolerance)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
private void	addContribution(SubHyperplane<Euclidean3D> facet, boolean reversed)	Add he contribution of a boundary facet.
PolygonsSet	getProjected()	Get the projection of the polyhedrons set on the plane.
void	visitInternalNode(BSPTree<Euclidean3D> node)	Visit a BSP tree node node having a non-null sub-hyperplane.
void	visitLeafNode(BSPTree<Euclidean3D> node)	Visit a leaf BSP tree node node having a null sub-hyperplane.
BSPTreeVisitor.Order	visitOrder(BSPTree<Euclidean3D> node)	Determine the visit order for this node.

Methods inherited from class java.lang.Object

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

Field Details

projected

private PolygonsSet projected

Projection of the polyhedrons set on the plane.

tolerance

private final double tolerance

Tolerance below which points are considered identical.

Constructor Details

BoundaryProjector

BoundaryProjector(double tolerance)

Simple constructor.

Parameters:

tolerance - tolerance below which points are considered identical

Method Details

visitOrder

public BSPTreeVisitor.Order visitOrder(BSPTree<Euclidean3D> node)

Determine the visit order for this node.

Before attempting to visit an internal node, this method is called to determine the desired ordering of the visit. It is guaranteed that this method will be called before visitInternalNode for a given node, it will be called exactly once for each internal node.

Specified by:

visitOrder in interface BSPTreeVisitor<Euclidean3D>

Parameters:

node - BSP node guaranteed to have a non null cut sub-hyperplane

Returns:

desired visit order, must be one of BSPTreeVisitor.Order.PLUS_MINUS_SUB, BSPTreeVisitor.Order.PLUS_SUB_MINUS, BSPTreeVisitor.Order.MINUS_PLUS_SUB, BSPTreeVisitor.Order.MINUS_SUB_PLUS, BSPTreeVisitor.Order.SUB_PLUS_MINUS, BSPTreeVisitor.Order.SUB_MINUS_PLUS

visitInternalNode

public void visitInternalNode(BSPTree<Euclidean3D> node)

Visit a BSP tree node node having a non-null sub-hyperplane.

It is guaranteed that this method will be called after visitOrder has been called for a given node, it wil be called exactly once for each internal node.

Specified by:

visitInternalNode in interface BSPTreeVisitor<Euclidean3D>

Parameters:

node - BSP node guaranteed to have a non null cut sub-hyperplane

See Also:

• BSPTreeVisitor.visitLeafNode(org.apache.commons.math3.geometry.partitioning.BSPTree<S>)

visitLeafNode

public void visitLeafNode(BSPTree<Euclidean3D> node)

Visit a leaf BSP tree node node having a null sub-hyperplane.

Specified by:

visitLeafNode in interface BSPTreeVisitor<Euclidean3D>

Parameters:

node - leaf BSP node having a null sub-hyperplane

See Also:

• BSPTreeVisitor.visitInternalNode(org.apache.commons.math3.geometry.partitioning.BSPTree<S>)

addContribution

private void addContribution(SubHyperplane<Euclidean3D> facet,
 boolean reversed)

Add he contribution of a boundary facet.

Parameters:

facet - boundary facet

reversed - if true, the facet has the inside on its plus side

getProjected

public PolygonsSet getProjected()

Get the projection of the polyhedrons set on the plane.

Returns:

projection of the polyhedrons set on the plane