A blockEdge defined as an arc of a circle. More...
Public Member Functions | |
TypeName ("arc") | |
Runtime type information. More... | |
arcEdge (const pointField &points, const point &origin, const label start, const label end) | |
Construct from components, given the origin of the circle. More... | |
arcEdge (const pointField &points, const label start, const label end, const point &midPoint) | |
Construct from components, using a point on the circumference. More... | |
arcEdge (const dictionary &dict, const label index, const searchableSurfaces &geometry, const pointField &points, Istream &is) | |
Construct from Istream and point field. More... | |
virtual | ~arcEdge ()=default |
Destructor. More... | |
point | position (const scalar lambda) const |
The point corresponding to the curve parameter [0-1]. More... | |
scalar | length () const noexcept |
The length of the curve. More... | |
Public Member Functions inherited from blockEdge | |
TypeName ("blockEdge") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, blockEdge, Istream,(const dictionary &dict, const label index, const searchableSurfaces &geometry, const pointField &points, Istream &is),(dict, index, geometry, points, is)) | |
blockEdge (const pointField &points, const label start, const label end) | |
Construct from components. More... | |
blockEdge (const dictionary &dict, const label index, const pointField &points, Istream &is) | |
Construct from Istream and point field. More... | |
virtual autoPtr< blockEdge > | clone () const |
Clone function. More... | |
virtual | ~blockEdge ()=default |
Destructor. More... | |
label | start () const |
Index of start point. More... | |
label | end () const |
Index of end point. More... | |
int | compare (const blockEdge &e) const |
Compare the given start/end points with this block edge. More... | |
int | compare (const edge &e) const |
Compare the given start/end points with this block edge. More... | |
int | compare (const label start, const label end) const |
Compare the given start/end points with this block edge. More... | |
virtual tmp< pointField > | position (const scalarList &lambdas) const |
The point positions corresponding to the curve parameters. More... | |
void | write (Ostream &os, const dictionary &dict) const |
Write edge with variable back-substitution. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from blockEdge | |
static autoPtr< blockEdge > | New (const dictionary &dict, const label index, const searchableSurfaces &geometry, const pointField &points, Istream &is) |
New function which constructs and returns pointer to a blockEdge. More... | |
Static Protected Member Functions inherited from blockEdge | |
static pointField | appendEndPoints (const pointField &points, const label start, const label end, const pointField &intermediate) |
Protected Attributes inherited from blockEdge | |
const pointField & | points_ |
The referenced point field. More... | |
const label | start_ |
Index of the start point. More... | |
const label | end_ |
Index of the end point. More... | |
A blockEdge defined as an arc of a circle.
The arc is normally defined by its endpoints and a point on its circumference, typically a midpoint. For example,
points ((1 0 0) (0 1 0)); arc 0 1 (0.707107 0.707107 0);
The arc can enclose an angle greater than 0 and less than 360 degrees.
The arc will frequently enclose an angle less than 180 degrees. For the case, it is possible to define the arc by its endpoints and its centre (origin) point. For example,
arc 0 1 origin (0 0 0);
When defined in the way, any discrepancy in the arc radius for the endpoints is resolved by adjusting the origin to ensure that the average radius is satisfied.
It is also possible to define a flatness factor as a multiplier of the calculated radius. For example,
arc 0 1 origin 1.1 (0 0 0);
arcEdge | ( | const pointField & | points, |
const point & | origin, | ||
const label | start, | ||
const label | end | ||
) |
arcEdge | ( | const pointField & | points, |
const label | start, | ||
const label | end, | ||
const point & | midPoint | ||
) |
arcEdge | ( | const dictionary & | dict, |
const label | index, | ||
const searchableSurfaces & | geometry, | ||
const pointField & | points, | ||
Istream & | is | ||
) |
Construct from Istream and point field.
The Istream can specify either a point on the circumference, or with a tag to specify the origin.
points | Referenced point field |
Definition at line 227 of file arcEdge.C.
References Foam::expressions::patchExpr::debug, Foam::Info, token::isWord(), Foam::nl, token::number(), p, and Istream::putBack().
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virtualdefault |
Destructor.
TypeName | ( | "arc" | ) |
Runtime type information.
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virtual |
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virtualnoexcept |