User Guide
User Guide
User Guide

Extend Curve

Use it!

Used to extend an element (line, line string, arc, ellipse, complex chain or B-spline curve) by a certain scale.

Tool SettingEffect
Continuity

Defines the smoothness of the extension.

  • Position
    • — The extension is a straight line.
  • Tangent
    • — The extension is tangent continuous.
  • Curvature
    • — The extension is curvature continuous.
Extension Scale

(Continuity set to Tangent or Curvature only) Scale relative to the length between the two poles of the curve at the end of the extension.
see footnote 89 Must be greater than 0 and less than 1.

To extend an element by a certain scale
  1. Select the Extend Curve tool.

  2. Identify the element.

  3. Adjust tool settings as required.

  4. Accept the extension.

Key-in: EXTEND CURVE