1) To create an arc I first draw a circle with Draw Shape, then I split it into more points using the menu Scripts -> Draw -> Split curve, then I try to delete the points outside the arc that I want to create. Unfortunately this doesn’t work because the 2 end points of the arc are always linked, thus altering the arc itself. So I guess this is not the proper way to create an arc. Could you please suggest the right way.
2) After created an arc (by drawing it over a circle as I said before) I just want to shorten it from a frame to another, e.g. from this initial arc:
after a while I want it to become like this:
and after another while like this:
... until it completely disappears.
I could not find an easy way to do so. It seems that it is not possible to dynamically cut off the points from a frame to another. So I tried to move the points (collapsing them) but this doesn't works too.
Any help will be greatly appreciated, thanks in advance.
