Enum values
| Name | Value | Description |
|---|---|---|
| Parameter | 0 | A numeric value inside the curve domain. This is the most fundamental way to specify curve loci. |
| Length | 1 | A length from the start or end of the curve in default units. Negative values measure lengths from the end of the curve. |
| Ratio | 2 | A normalised length ratio between zero and one. |
| Point | 3 | An (xyz) coordinate on or near the the curve. |