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

Various triangle functions. More...

Public Types

enum  proxType { NONE, POINT, EDGE }
 Enumeration defining nearness classification. More...
 

Static Public Member Functions

static bool intersectAxesBundle (const point &V0, const point &V10, const point &V20, const label i0, const pointField &origin, const scalar maxLength, point &pInter)
 Intersect triangle with parallel edges aligned with axis i0. More...
 
static bool intersectBb (const point &p0, const point &p1, const point &p2, const treeBoundBox &cubeBb)
 Does triangle intersect bounding box. More...
 
static bool intersect (const point &va0, const point &va10, const point &va20, const point &basePoint, const vector &normal, point &pInter0, point &pInter1)
 Does triangle intersect plane. Return bool and set intersection segment. More...
 
static bool intersect (const point &va0, const point &va10, const point &va20, const point &vb0, const point &vb10, const point &vb20, point &pInter0, point &pInter1)
 Do triangles intersect. Return bool and set intersection segment. More...
 

Detailed Description

Various triangle functions.

Source files

Definition at line 56 of file triangleFuncs.H.

Member Enumeration Documentation

◆ proxType

enum proxType

Enumeration defining nearness classification.

Enumerator
NONE 
POINT 
EDGE 

Definition at line 64 of file triangleFuncs.H.

Member Function Documentation

◆ intersectAxesBundle()

bool intersectAxesBundle ( const point &  V0,
const point &  V10,
const point &  V20,
const label  i0,
const pointField &  origin,
const scalar  maxLength,
point &  pInter 
)
static

Intersect triangle with parallel edges aligned with axis i0.

Returns true (and intersection in pInter) if any of them intersects triangle. Used in intersectBb.

Definition at line 89 of file triangleFuncs.C.

References Foam::constant::atomic::alpha, beta(), Foam::det(), forAll, Foam::mag(), s, and u0.

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◆ intersectBb()

bool intersectBb ( const point &  p0,
const point &  p1,
const point &  p2,
const treeBoundBox &  cubeBb 
)
static

Does triangle intersect bounding box.

Definition at line 176 of file triangleFuncs.C.

References PointHit< Point >::distance(), Foam::constant::electromagnetic::e, treeBoundBox::edges, stdFoam::end(), forAll, intersection::HALF_RAY, PointHit< Point >::hit(), triangle< Point, PointRef >::intersection(), treeBoundBox::intersects(), p0, points, treeBoundBox::points(), and Foam::start.

Referenced by treeDataFace::overlaps().

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◆ intersect() [1/2]

bool intersect ( const point &  va0,
const point &  va10,
const point &  va20,
const point &  basePoint,
const vector &  normal,
point &  pInter0,
point &  pInter1 
)
static

Does triangle intersect plane. Return bool and set intersection segment.

Definition at line 233 of file triangleFuncs.C.

References Foam::mag(), and Foam::sqrt().

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◆ intersect() [2/2]

bool intersect ( const point &  va0,
const point &  va10,
const point &  va20,
const point &  vb0,
const point &  vb10,
const point &  vb20,
point &  pInter0,
point &  pInter1 
)
static

Do triangles intersect. Return bool and set intersection segment.

Definition at line 351 of file triangleFuncs.C.

References SortableList< T >::indices(), Foam::mag(), and SortableList< T >::sort().

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