Package cz.fidentis.analyst.engines.distance.impl

Class MeshDistanceRC

java.lang.Object

cz.fidentis.analyst.engines.distance.impl.MeshDistanceVisitorImpl

cz.fidentis.analyst.engines.distance.impl.MeshDistanceRC

All Implemented Interfaces:

MeshVisitor, MeshDistanceVisitor, Serializable

public class MeshDistanceRC
extends MeshDistanceVisitorImpl

This visitor searches for the closest points of the primary mesh (provided to the constructor) and inspected meshes by casting rays (RC) in the direction of normal vectors on the inspected mesh.

This visitor is instantiated with a single octree (either given as the input parameter, or automatically created from the triangular mesh). When applied to other mesh facets, it finds points from the octree that are the closest to each point of the inspected mesh.

This visitor is thread-safe, i.e., a single instance of the visitor can be used to inspect multiple meshes simultaneously.

The distance is computed either as absolute or relative. Absolute represents Euclidean distance (all numbers are positive). On the contrary, relative distance considers orientation of the visited mesh (determined by its normal vectors) and produces positive or negative distances depending on whether the primary mesh is "in front of" or "behind" the given vertex.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MeshDistanceRC(Octree mainOctree, boolean relativeDistance, boolean parallel)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected void	updateResults(RayIntersectionVisitor vis, List<Double> distList, List<MeshPoint> nearestPointsList)
void	visitMeshFacet(MeshFacet comparedFacet)	The inspection method to be implemented by specific visitors.

Methods inherited from class cz.fidentis.analyst.engines.distance.impl.MeshDistanceVisitorImpl

dispose, getDistancesOfVisitedFacets, inParallel, relativeDistance

Methods inherited from class java.lang.Object

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

Methods inherited from interface cz.fidentis.analyst.data.mesh.MeshVisitor

isThreadSafe

Constructor Details

MeshDistanceRC

public MeshDistanceRC(Octree mainOctree,
 boolean relativeDistance,
 boolean parallel)

Constructor.

Parameters:

mainOctree - An octree to which distance from the visited facets is to be computed. Must not be null

relativeDistance - If true, then the visitor calculates the relative distances with respect to the normal vectors of source facets (normal vectors have to present), i.e., we can get negative distances.

parallel - If true, then the algorithm runs concurrently utilizing all CPU cores

Throws:

IllegalArgumentException - if some parameter is wrong

Method Details

visitMeshFacet

public void visitMeshFacet(MeshFacet comparedFacet)

Description copied from interface: MeshVisitor

The inspection method to be implemented by specific visitors.

Parameters:

comparedFacet - Mesh facet to be visited.

updateResults

protected void updateResults(RayIntersectionVisitor vis,
 List<Double> distList,
 List<MeshPoint> nearestPointsList)