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2.2.7.5 Cornu Easements Modifying a Cornu

Because a Cornu is defined by its end points position, angle and radius - it can only be directly modified by dragging an end point along a track.

  1. Click the Modify button () to activate the Modify function.

  2. Click on the Cornu track. The track ends will turn into roundels

  3. Left-Click the endpoint and Left-Drag it to move the endpoint along the connected track, or beyond it if you want that track extended ( but this only works in the direction of the Cornu).

  4. Repeat with the other end-pint if desired

  5. Once you are happy, hit the spacebar or Enter, or to cancel hit Escape.

Note: A Cornu can also be modified by moving or rotating a connected track.