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/*
* Copyright 2015 University of Basel, Graphics and Vision Research Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package scalismo.mesh.boundingSpheres
import scalismo.common.PointId
import scalismo.geometry.{_3D, Point}
import scalismo.mesh.{BarycentricCoordinates, BarycentricCoordinates4, TetrahedronId, TriangleId}
/**
* A class that contains the location and the distance to the closest point on a surface.
* @param point The closest point location on the surface.
* @param distanceSquared The squared distance to the closest point location.
*/
case class ClosestPoint(point: Point[_3D], distanceSquared: Double) {
def distance = Math.sqrt(distanceSquared)
def <(that: ClosestPoint): Boolean = {
this.distanceSquared < that.distanceSquared
}
def <(that: ClosestPointWithType): Boolean = {
this.distanceSquared < that.distanceSquared
}
}
/**
* The base type for all closest point types with additional information about the location of the point.
* @param point The closest point location on the surface.
* @param distanceSquared The squared distance to the closest point location.
*/
sealed abstract class ClosestPointWithType(val point: Point[_3D], val distanceSquared: Double) {
def <(that: ClosestPointWithType): Boolean = {
this.distanceSquared < that.distanceSquared
}
def distance = Math.sqrt(distanceSquared)
}
/**
* The closest point is a vertex.
* The additional information stored is the PointId of the vertex found.
* @param pid PointId of the closest vertex.
*/
case class ClosestPointIsVertex(override val point: Point[_3D], override val distanceSquared: Double, pid: PointId)
extends ClosestPointWithType(point, distanceSquared)
/**
* The closest point lies on a line.
* The additional information stored are the PointIds of the two end points of the line and the barycentric coordinate.
* @param pids Tuple of PointIds of the two end points of the line.
* @param bc The barycentric coordinates of the closest point location.
*/
case class ClosestPointOnLine(override val point: Point[_3D],
override val distanceSquared: Double,
pids: (PointId, PointId),
bc: Double)
extends ClosestPointWithType(point, distanceSquared)
/**
* The closest point is a vertex.
* The additional information stored is the TriangleId and the barycentric coordinates of the point.
* @param tid TriangleId of the triangle containing the closest point.
* @param bc The barycentric coordinates of the closest point location.
*/
case class ClosestPointInTriangle(override val point: Point[_3D],
override val distanceSquared: Double,
tid: TriangleId,
bc: BarycentricCoordinates)
extends ClosestPointWithType(point, distanceSquared)
case class ClosestPointInTriangleOfTetrahedron(override val point: Point[_3D],
override val distanceSquared: Double,
tetId: TetrahedronId,
triId: TriangleId,
bc: BarycentricCoordinates)
extends ClosestPointWithType(point, distanceSquared)
/**
* The closest point is a vertex.
* The additional information stored is the TriangleId and the barycentric coordinates of the point.
* @param tid TriangleId of the tetrahedral containing the closest point.
* @param bc The barycentric coordinates of the closest point location.
*/
case class ClosestPointInTetrahedron(override val point: Point[_3D],
override val distanceSquared: Double,
tid: TetrahedronId,
bc: BarycentricCoordinates4)
extends ClosestPointWithType(point, distanceSquared)
