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Helix//Spiral on Curve
Rhinocommon Method : Create a C2 non-rational uniform cubic NURBS approximation of a swept helix or spiral
Inputs
| Name | ID | Description | Type |
|---|---|---|---|
| Curve | C | The rail curve | Curve |
| Angle of Start | A | Angle of start | Number |
| Pitch | P | The pitch. Positive values produce counter-clockwise orientation, negative values produce clockwise orientation. | Number |
| TurnCount | TC | The turn count. If != 0, then the resulting helix will have this many turns. If = 0, then if pitch != 0 and the approximate distance between turns will be set to pitch. Positive values produce counter-clockwise orientation, negative values produce clockwise orientation. If pitch=0 and turnCount=0 curve will follow the perpandicular Frame | Number |
| R1 | R1 | The starting radius. At least one radii must be nonzero. Negative values are allowed. | Number |
| R2 | R2 | The ending radius. At least one radii must be nonzero. Negative values are allowed | Number |
| N | N | Number of points to interpolate per turn. Must be greater than 4. When in doubt, use 12 | Integer |
Outputs
| Name | ID | Description | Type |
|---|---|---|---|
| Helix | C | Helix | Curve |
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