Edit: in a number of cases, however, if you turn on Edit Points (not
control points) which should correspond to your original interpolated
points; you might be able to edit the curve using those and still have
it pass through the other edit points…
just did experiment with EditPoints but curve departs the points I wish it to still run through.
also Hbar allows curve to be dragged/snapped to Pt5a but it also departs the other Pts. My heart was uplifted as I saw what Hbar gave, the ability to move the curve and snap to 5a, but sank when I saw the rest had shifted.
I am trying to understand what the steps are here.
Please edit my steps if I havent grasped whats being explained.
see attached test piece.
Lets say I have a curve running through 10 points that were drawn left to right (placed using points tool), lets number them 1 to 10 in draw order, left to right. Call them Pt1 Pt2 etc , they are points on opposing curves that the curve must pass through.(orange)
I need to alter curve between Pt4 and Pt6 to a new position for Pt5 point called 5a
- split the curve at Pt4 and Pt6
You will need to add points to the start and end of the curve, then extend by a reasonable distance before you start, then split at these ends in order to use _blendCrv at the end segments of the original curve.
do you mean add control points ? then extend curve…and would that be by arc ?
- Activate curve that starts at Pt1 and type InsertControlPoint and click on it at Pt4
- Choose ExtendCurve by arc and extend this curve at Pt4 “by a reasonable distance”.
then split at these ends in order to use _blendCrv at the end segments of the original curve.
- use split command on the end of these extensions
Cant see how one can split an end.
My test example attached. In which I need to alter curve to Pt5a keeping path through the other points to retain intersection with the orange curves.
It will then at Pt5a intersect with the brown curve, added later on (reason for the change).
Drawing it thrpugh Pt1 to 10 now via 5a with InterpCrv sees little change in CurvatureGraph.
What are the numbered steps to achieve this using split and extend and BlendCrv and so on ?
or ideally a Jing video. as its something I am sure others will face.
EditCurveRetainPaths1-4and 6to10.3dm (44.7 KB)