Setting tangency and modifying one curve only: the propagation factor

The example below shows the effect of changing the propagation factor: the higher the propagation factor, the longer the section of curve affected by the change.
 
  1. Open file "mc_02_04.e3e2".


     
  2. Start the Curve Continuity command.
     
  3. In the Degree drop-down list select Tangency.
     
  4. In the Method drop-down list select Fit reference curve.
     
  5. Click first on the arc and then on the straight line segment (which must remain unchanged), as shown below:


     
  6. Enable conversion to NURBS by answering Yes.
     
  7. Type the value 1 in the Scale box under More Options and the value 0.2 in the Propagation mini-dialog box which shows up in the model, respectively.
     
  8. Click to obtain the following result:


     
  9. Repeat the exercise using a scale value of 1 again, and a propagation factor of 0.8. Compare the results obtained: