# Curve Utilities Toolbox

The Curve Utilities toolbox contains tools for converting elements to B-spline curves, and for creating, evaluating, or matching curve settings.

All tools in a toolbox are not always visible by default. To see all tools, right-click in the toolbox and select Show All from the menu.

To | Select in the Curve Utilities toolbox |
---|---|

Convert an element to a B-spline curve with the same shape. | Convert to B-spline Curve |

Convert a B-spline curve to lines, a line string, a stream curve, arcs or points. | Facet Curve |

Graphically and numerically evaluate the attributes of a B-spline curve at given locations on the curve. | Extract Points from Curve |

Place a curve by defining its mathematical formula. | Curve by Formula |

Match the active B-spline curve settings to the attributes of a B-spline curve. | Match Curve Settings |

Note: The ANALYZE CURVATURE POINT key-in can be used to analyze a curve at a point along the curve. When you activate the tool and select the curve a full circle displays at that point on the curve. As you move the point along the curve, the radius of the curve is displayed in the status bar. The u-value is displayed in the Message Center.