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2.0 Example of an extrusion on a guide curveTake the example of the arc again. You can
delete the surface you have just created without deleting the profile, and
you can use the function: "filter selection" to be sure of not
deleting the profile.
Reposition the profile in the " XY "
plane making it rotate following the " Z " axis
of: " -90° "
Draw a guide curve on which the profile will be
based, this curve can be open or closed as in the example.
Select the profile then click on "extruded
surface"
Choose "extrusion method on guide curve"
Select the guide curve then the tentative point
of the profile on the guide curve. This point can be on the contour of the
profile or on any other place inside or outside this profile. You can use
the digital and/or geometric constraint tools to designate this point. For
this example, we will take the right point at the end of the arc.
Once
the tentative point has been selected, the drawing goes automatically into
perspective view line mode to be able to visualise and possibly reverse
the direction of the profile. The profile is rotated automatically
following the " Z " axis at this time.
If the direction is acceptable, click on "
yes " which will immediately start the creation of the surface.
If the direction is not acceptable, click on
" no " which will reverse the direction of the profile, then you
will have to validate it by clicking on " yes "
If you click on "cancel", you return
to " XY " view, to make any necessary modifications to the
profile or the guide curve.
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