Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | List of all members
triSurfaceTools Class Reference

A collection of tools for triSurface. More...

Public Types

enum  sideType { UNKNOWN, INSIDE, OUTSIDE }
 On which side of surface. More...
 

Public Member Functions

triSurface triangulateFaceCentre (const polyBoundaryMesh &mBesh, const labelHashSet &includePatches, const bool verbose=false)
 Face-centre triangulation of (selected patches of) boundaryMesh. More...
 

Static Public Member Functions

static void writeOBJ (const fileName &fName, const pointField &pts)
 Write pointField to OBJ format file. More...
 
static void writeOBJ (const triSurface &surf, const fileName &fName, const boolList &markedVerts)
 Write vertex subset to OBJ format file. More...
 
static void getVertexTriangles (const triSurface &surf, const label edgeI, labelList &edgeTris)
 Get all triangles using edge endpoint. More...
 
static labelList getVertexVertices (const triSurface &surf, const edge &e)
 Get all vertices (local numbering) connected to vertices of edge. More...
 
static label otherFace (const triSurface &surf, const label faceI, const label edgeI)
 Get face connected to edge not faceI. More...
 
static void otherEdges (const triSurface &surf, const label faceI, const label edgeI, label &e1, label &e2)
 Get the two edges on faceI counterclockwise after edgeI. More...
 
static void otherVertices (const triSurface &surf, const label faceI, const label vertI, label &vert1I, label &vert2I)
 Get the two vertices (local numbering) on faceI counterclockwise. More...
 
static label oppositeEdge (const triSurface &surf, const label faceI, const label vertI)
 Get edge opposite vertex (local numbering) More...
 
static label oppositeVertex (const triSurface &surf, const label faceI, const label edgeI)
 Get vertex (local numbering) opposite edge. More...
 
static label getEdge (const triSurface &surf, const label vert1I, const label vert2I)
 Returns edge label connecting v1, v2 (local numbering) More...
 
static label getTriangle (const triSurface &surf, const label e0I, const label e1I, const label e2I)
 Return index of triangle (or -1) using all three edges. More...
 
static triSurface collapseEdges (const triSurface &surf, const labelList &collapsableEdges)
 Create new triSurface by collapsing edges to edge mids. More...
 
static triSurface collapseEdges (const triSurface &surf, const labelList &collapsableEdges, const pointField &edgeMids, labelList &faceStatus)
 Create new triSurface by collapsing edges to specified. More...
 
static triSurface greenRefine (const triSurface &surf, const labelList &refineEdges)
 Refine edges by splitting to opposite vertex. More...
 
static triSurface redGreenRefine (const triSurface &surf, const labelList &refineFaces)
 Refine face by splitting all edges. Neighbouring face is. More...
 
static label minEdge (const triSurface &surf, const labelList &edgeIndices)
 Returns element in edgeIndices with minimum length. More...
 
static label maxEdge (const triSurface &surf, const labelList &edgeIndices)
 Returns element in edgeIndices with minimum length. More...
 
static triSurface mergePoints (const triSurface &surf, const scalar mergeTol)
 Merge points within distance. More...
 
static vector surfaceNormal (const triSurface &surf, const label nearestFaceI, const point &nearestPt)
 Triangle (unit) normal. If nearest point to triangle on edge use. More...
 
static sideType edgeSide (const triSurface &surf, const point &sample, const point &nearestPoint, const label edgeI)
 If nearest point is on edgeI, determine on which side of surface. More...
 
static sideType surfaceSide (const triSurface &surf, const point &sample, const label nearestFaceI)
 Given nearest point (to sample) on surface determines which side. More...
 
static triSurface triangulate (const polyBoundaryMesh &mBesh, const labelHashSet &includePatches, const bool verbose=false)
 Simple triangulation of (selected patches of) boundaryMesh. Needs. More...
 
static void calcInterpolationWeights (const triPointRef &, const point &, FixedList< scalar, 3 > &weights)
 Calculate linear interpolation weights for point (guaranteed to be. More...
 
static void calcInterpolationWeights (const triSurface &s, const pointField &samplePts, List< FixedList< label, 3 > > &verts, List< FixedList< scalar, 3 > > &weights)
 
static triSurface delaunay2D (const List< vector2D > &)
 Do unconstrained Delaunay of points. Returns triSurface with 3D. More...
 
static surfaceLocation classify (const triSurface &, const label triI, const point &trianglePoint)
 Test point on plane of triangle to see if on edge or point or inside. More...
 
static surfaceLocation trackToEdge (const triSurface &, const surfaceLocation &start, const surfaceLocation &end, const plane &cutPlane)
 Track on surface to get closer to point. More...
 
static void track (const triSurface &, const surfaceLocation &endInfo, const plane &cutPlane, surfaceLocation &hitInfo)
 Track from edge to edge across surface. Uses trackToEdge. More...
 

Static Public Attributes

static const label ANYEDGE = -1
 Face collapse status. More...
 
static const label NOEDGE = -2
 
static const label COLLAPSED = -3
 

Detailed Description

A collection of tools for triSurface.

Source files

Definition at line 62 of file triSurfaceTools.H.

Member Enumeration Documentation

enum sideType

On which side of surface.

Enumerator
UNKNOWN 
INSIDE 
OUTSIDE 

Definition at line 436 of file triSurfaceTools.H.

Member Function Documentation

void writeOBJ ( const fileName fName,
const pointField pts 
)
static

Write pointField to OBJ format file.

Definition at line 1253 of file triSurfaceTools.C.

References Foam::endl(), forAll, Foam::Pout, List< T >::size(), Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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void writeOBJ ( const triSurface surf,
const fileName fName,
const boolList markedVerts 
)
static

Write vertex subset to OBJ format file.

Definition at line 1272 of file triSurfaceTools.C.

References Foam::endl(), forAll, triSurfaceTools::getVertexTriangles(), PrimitivePatch< Face, FaceList, PointField, PointType >::localPoints(), Foam::Pout, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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void getVertexTriangles ( const triSurface surf,
const label  edgeI,
labelList edgeTris 
)
static
Foam::labelList getVertexVertices ( const triSurface surf,
const edge e 
)
static

Get all vertices (local numbering) connected to vertices of edge.

Definition at line 1345 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), forAll, HashSet< Key, Hash >::insert(), triSurfaceTools::otherFace(), edge::otherVertex(), PrimitivePatch< Face, FaceList, PointField, PointType >::pointEdges(), edge::start(), and HashTable< T, Key, Hash >::toc().

Referenced by triSurfaceTools::getVertexTriangles().

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Foam::label otherFace ( const triSurface surf,
const label  faceI,
const label  edgeI 
)
static

Get face connected to edge not faceI.

Definition at line 1430 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edgeFaces(), triSurfaceTools::otherEdges(), and List< T >::size().

Referenced by triSurfaceTools::getVertexVertices().

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void otherEdges ( const triSurface surf,
const label  faceI,
const label  edgeI,
label e1,
label e2 
)
static
void otherVertices ( const triSurface surf,
const label  faceI,
const label  vertI,
label vert1I,
label vert2I 
)
static

Get the two vertices (local numbering) on faceI counterclockwise.

vertI

Definition at line 1491 of file triSurfaceTools.C.

References Foam::abort(), Foam::FatalError, FatalErrorIn, PrimitivePatch< Face, FaceList, PointField, PointType >::localFaces(), and triSurfaceTools::oppositeEdge().

Referenced by triSurfaceTools::otherEdges().

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Foam::label oppositeEdge ( const triSurface surf,
const label  faceI,
const label  vertI 
)
static

Get edge opposite vertex (local numbering)

Definition at line 1530 of file triSurfaceTools.C.

References Foam::abort(), PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceEdges(), Foam::FatalError, FatalErrorIn, forAll, triSurfaceTools::oppositeVertex(), and edge::start().

Referenced by triSurfaceTools::otherVertices().

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Foam::label oppositeVertex ( const triSurface surf,
const label  faceI,
const label  edgeI 
)
static

Get vertex (local numbering) opposite edge.

Definition at line 1563 of file triSurfaceTools.C.

References Foam::abort(), PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), Foam::FatalError, FatalErrorIn, forAll, triSurfaceTools::getEdge(), PrimitivePatch< Face, FaceList, PointField, PointType >::localFaces(), and edge::start().

Referenced by triSurfaceTools::collapseEdges(), and triSurfaceTools::oppositeEdge().

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Foam::label getEdge ( const triSurface surf,
const label  vert1I,
const label  vert2I 
)
static

Returns edge label connecting v1, v2 (local numbering)

Definition at line 1592 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), forAll, triSurfaceTools::getTriangle(), PrimitivePatch< Face, FaceList, PointField, PointType >::pointEdges(), and edge::start().

Referenced by triSurfaceTools::oppositeVertex().

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Foam::label getTriangle ( const triSurface surf,
const label  e0I,
const label  e1I,
const label  e2I 
)
static

Return index of triangle (or -1) using all three edges.

Definition at line 1616 of file triSurfaceTools.C.

References Foam::abort(), triSurfaceTools::collapseEdges(), PrimitivePatch< Face, FaceList, PointField, PointType >::edgeFaces(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceEdges(), Foam::FatalError, FatalErrorIn, and forAll.

Referenced by triSurfaceTools::getEdge().

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Foam::triSurface collapseEdges ( const triSurface surf,
const labelList collapsableEdges 
)
static
Foam::triSurface collapseEdges ( const triSurface surf,
const labelList collapsableEdges,
const pointField edgeMids,
labelList faceStatus 
)
static
Foam::triSurface greenRefine ( const triSurface surf,
const labelList refineEdges 
)
static
Foam::triSurface redGreenRefine ( const triSurface surf,
const labelList refineFaces 
)
static

Refine face by splitting all edges. Neighbouring face is.

greenRefine'd.

Definition at line 1882 of file triSurfaceTools.C.

References forAll, and List< T >::size().

Referenced by triSurfaceTools::collapseEdges().

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Foam::label minEdge ( const triSurface surf,
const labelList edgeIndices 
)
static

Returns element in edgeIndices with minimum length.

Definition at line 1993 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), forAll, PrimitivePatch< Face, FaceList, PointField, PointType >::localPoints(), Foam::mag(), triSurfaceTools::maxEdge(), and edge::start().

Referenced by triSurfaceTools::greenRefine().

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Foam::label maxEdge ( const triSurface surf,
const labelList edgeIndices 
)
static

Returns element in edgeIndices with minimum length.

Definition at line 2023 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edges(), edge::end(), forAll, PrimitivePatch< Face, FaceList, PointField, PointType >::localPoints(), Foam::mag(), triSurfaceTools::mergePoints(), and edge::start().

Referenced by triSurfaceTools::minEdge().

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Foam::triSurface mergePoints ( const triSurface surf,
const scalar  mergeTol 
)
static
Foam::vector surfaceNormal ( const triSurface surf,
const label  nearestFaceI,
const point nearestPt 
)
static
Foam::triSurfaceTools::sideType edgeSide ( const triSurface surf,
const point sample,
const point nearestPoint,
const label  edgeI 
)
static

If nearest point is on edgeI, determine on which side of surface.

sample is.

Definition at line 2156 of file triSurfaceTools.C.

References PrimitivePatch< Face, FaceList, PointField, PointType >::edgeFaces(), PrimitivePatch< Face, FaceList, PointField, PointType >::faceNormals(), triSurfaceTools::INSIDE, n, triSurfaceTools::OUTSIDE, List< T >::size(), triSurfaceTools::surfaceSide(), and triSurfaceTools::UNKNOWN.

Referenced by triSurfaceTools::surfaceNormal(), and triSurfaceTools::surfaceSide().

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Foam::triSurfaceTools::sideType surfaceSide ( const triSurface surf,
const point sample,
const label  nearestFaceI 
)
static
Foam::triSurface triangulate ( const polyBoundaryMesh mBesh,
const labelHashSet includePatches,
const bool  verbose = false 
)
static
Foam::triSurface triangulateFaceCentre ( const polyBoundaryMesh mBesh,
const labelHashSet includePatches,
const bool  verbose = false 
)
void calcInterpolationWeights ( const triPointRef tri,
const point p,
FixedList< scalar, 3 > &  weights 
)
static

Calculate linear interpolation weights for point (guaranteed to be.

inside triangle)

Definition at line 2604 of file triSurfaceTools.C.

References triangle< Point, PointRef >::a(), triangle< Point, PointRef >::b(), triangle< Point, PointRef >::c(), Foam::mag(), and Foam::max().

Referenced by triSurfaceTools::calcInterpolationWeights(), and triSurfaceTools::delaunay2D().

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void calcInterpolationWeights ( const triSurface s,
const pointField samplePts,
List< FixedList< label, 3 > > &  verts,
List< FixedList< scalar, 3 > > &  weights 
)
static
Foam::triSurface delaunay2D ( const List< vector2D > &  pts)
static

Do unconstrained Delaunay of points. Returns triSurface with 3D.

points with z=0. All triangles in region 0.

Definition at line 2538 of file triSurfaceTools.C.

References Foam::abort(), UList< T >::begin(), triSurfaceTools::calcInterpolationWeights(), dtris2(), Foam::FatalError, FatalErrorIn, forAll, points, and List< T >::size().

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Foam::surfaceLocation classify ( const triSurface s,
const label  triI,
const point trianglePoint 
)
static
Foam::surfaceLocation trackToEdge ( const triSurface s,
const surfaceLocation start,
const surfaceLocation end,
const plane cutPlane 
)
static

Track on surface to get closer to point.

Possible situations:

  • 1. reached endpoint
  • 2. reached edge (normal situation)
  • 3. reached end of surface (edge on single face) Input:
  • starting position+triangle/edge/point (so has to be on surface!)
  • (optional) previous position+triangle/edge/point to prevent going back. Set index (of triangle/edge/point) to -1 if not used.
  • end position+triangle/edge/point (so has to be on surface!)
  • plane to follow. Has to go through end point! Returns:
  • true if end point reached (situation 1)
  • new position+triangle/edge/point Caller has to check for situation 3 by checking that triangle() is not set.

Definition at line 2812 of file triSurfaceTools.C.

References triangle< Point, PointRef >::EDGE, PrimitivePatch< Face, FaceList, PointField, PointType >::edgeFaces(), surfaceLocation::elementType(), PointIndexHit< Point >::hit(), PointIndexHit< Point >::index(), triangle< Point, PointRef >::NONE, pFaces, PrimitivePatch< Face, FaceList, PointField, PointType >::pointFaces(), PointIndexHit< Point >::rawPoint(), PointIndexHit< Point >::setMiss(), triSurfaceTools::track(), and surfaceLocation::triangle().

Referenced by triSurfaceTools::classify(), and triSurfaceTools::track().

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void track ( const triSurface s,
const surfaceLocation endInfo,
const plane cutPlane,
surfaceLocation hitInfo 
)
static

Track from edge to edge across surface. Uses trackToEdge.

Not really useful by itself, more example of how to use trackToEdge. endInfo should be location on surface. hitInfo should be initialised to starting location (on surface as well). Upon return is set to end location.

Definition at line 2890 of file triSurfaceTools.C.

References PointIndexHit< Point >::hit(), triSurfaceTools::trackToEdge(), and surfaceLocation::triangle().

Referenced by triSurfaceTools::trackToEdge().

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Member Data Documentation

const Foam::label ANYEDGE = -1
static

Face collapse status.

anyEdge: any edge can be collapsed noEdge: no edge can be collapsed collapsed: already collapsed >0: edge label that can be collapsed

Definition at line 366 of file triSurfaceTools.H.

Referenced by triSurfaceTools::collapseEdges().

const Foam::label NOEDGE = -2
static

Definition at line 367 of file triSurfaceTools.H.

const Foam::label COLLAPSED = -3
static

Definition at line 368 of file triSurfaceTools.H.

Referenced by triSurfaceTools::collapseEdges().


The documentation for this class was generated from the following files: