Methods by Which a Curve Is Calculated
Unlike point curves, there are a number of Methods, which can be chosen from the Method option menu, for calculating the final curve that results.
| Method | Data points or vertices of element define |
|---|---|
| Control Points | Vertices of the control polygon. |
| Through Points | Points on the curve. |
| Least Squares by Tolerance and Least Squares by Number | A set of points that the curve approximates or is "fit" to. |
| Catmull-Rom | A set of points that is closely approximated. |
These illustrations show the different types of B-spline curves constructed from the same line string.
