Variable-distance offset curve (messy curvature graph)

Grasshopper
1

I’m trying to create an offset curve that’s offset from 0 to some value to 0 again. So something like this, where blue is the offset curve:
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I created points along the original curve, got the perpendicular and moved those points by variable amounts & then created an interpolated curve through those points. This works fine for now, but the resulting offset curve has a very messy curvature graph. The original curve seems clean. Any ideas what could be improved here to get a better offset curve?

GRAPH
GRAPH1047×551 19.7 KB

OFFSET-001.gh (18.0 KB)

2

variable_offset_2021_Aug4a
variable_offset_2021_Aug4a832×630 23.7 KB

variable_offset_2021_Aug4a2
variable_offset_2021_Aug4a21382×448 65.4 KB

variable_offset_2021_Aug4a.gh (13.5 KB)

1 Like
3

Is there any way to lock that point, or define it by value? Just wondering because if I accidently nudge it, it seems the only way to get it back to it’s middle position is to reset the graph?

red

4

Not that I know of, no. In this case, you don’t want to touch the default graph at all.