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| TypeName ("arc") |
| Runtime type information. More...
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| arcEdge (const pointField &points, const point &origin, const edge &fromTo) |
| Construct from components, given the origin of the circle. More...
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| arcEdge (const pointField &points, const edge &fromTo, const point &midPoint) |
| Construct from components, using a point on the circumference. More...
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| arcEdge (const pointField &points, const point &origin, const label from, const label to) |
| Construct from components, given the origin of the circle. More...
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| arcEdge (const pointField &points, const label from, const label to, const point &midPoint) |
| Construct from components, using a point on the circumference. More...
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| arcEdge (const dictionary &dict, const label index, const searchableSurfaces &, const pointField &points, Istream &is) |
| Construct from Istream and point field. More...
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virtual | ~arcEdge ()=default |
| Destructor. More...
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point | position (const scalar lambda) const |
| The point corresponding to the curve parameter [0-1]. More...
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scalar | length () const noexcept |
| The length of the curve. More...
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| TypeName ("blockEdge") |
| Runtime type information. More...
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| declareRunTimeSelectionTable (autoPtr, blockEdge, Istream,(const dictionary &dict, const label index, const searchableSurfaces &geometry, const pointField &points, Istream &is),(dict, index, geometry, points, is)) |
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| blockEdge (const pointField &points, const edge &fromTo) |
| Construct from components. More...
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| blockEdge (const dictionary &dict, const label index, const pointField &points, Istream &is) |
| Construct from Istream and point field. More...
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virtual autoPtr< blockEdge > | clone () const |
| Clone function. More...
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virtual | ~blockEdge ()=default |
| Destructor. More...
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bool | valid () const noexcept |
| True if first/last indices are unique and non-negative. More...
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label | start () const noexcept |
| Index of start (first) point. More...
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label | end () const noexcept |
| Index of end (last) point. More...
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const point & | firstPoint () const |
| The location of the first point. More...
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const point & | lastPoint () const |
| The location of the last point. More...
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int | compare (const blockEdge &e) const |
| Compare the given start/end points with this block edge. More...
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int | compare (const edge &e) const |
| Compare the given start/end points with this block edge. More...
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int | compare (const label start, const label end) const |
| Compare the given start/end points with this block edge. More...
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point | linearPosition (const scalar lambda) const |
| The point position in the straight line. More...
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virtual tmp< pointField > | position (const scalarList &lambdas) const |
| The point positions corresponding to the curve parameters. More...
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void | write (Ostream &os, const dictionary &dict) const |
| Write edge with variable back-substitution. More...
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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);
- Source files
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Definition at line 75 of file arcEdge.H.