CATIA V5 MACROs
Prices some are free and some for money
Buttons an example of macros buttons
Download source codes of catvbs
How to install installation of catia V5 macros
e3extrapolextrapolates curve with curvature continuity by circular arc.
Sometimes the internal CATIA V5 function EXTRAPOLATE does unexpected result.
The result looks like tangential extrapolation even thought the option
CONTINUITY is set to CURVATURE.
Start the macro and select a curve.
Select the symbol of the end to be extrapolated.
Key length of circular arc.
Here you can see the difference between results.