Tapered Offset/Stretch closed polyline shape

[GLAVCVS]

 

Hi @pkenewell
I don’t use tangents.
For straight segments, the geometry progresses or retreats based on the angular direction of the lateral segments of the selected one.
For arc segments, in order to “link” them, progression and retreat are done based on the radius.
The variable *s* is currently single-use if passed to the second part of the command, outside of GRREAD.
The code is like a living being: it’s born with the idea of following a path, and along the way, it chooses a different route.
So *s* was implemented with the intention of providing a complete solution within GRREAD, and along the way, the current solution was chosen instead.

[GLAVCVS]

*s* remains for the future as a small device abandoned on the moon that, perhaps one day, will be used by the next visitor.

[dexus]

I've changed ElpanovEvgeniy's code.

Now it uses snapping with help from dyndraw.arx by Alexander Rivilis.

 

The topic for dyndraw: https://www.theswamp.org/index.php?topic=9133.0

The latest version seems to be AutoCAD 2019 and the arx can still be downloaded here: http://web.archive.org/web/http://www.maestrogroup.com.ua/support/dyndraw.zip

 

Here is my adaptation, let me know how it functions:

offset.lsp

[SLW210]

I have AutoCAD 2026 at work.

[dexus]

Aj, unlucky.

Hopefully Alexander Rivilis will make an updated version for newer versions! 

[SLW210]

I meant to try this at home last night on AutoCAD 2000i, but never got on the computer.

 

I am still looking over the codes, maybe I can get something going on my own.

 

As it is, @GLAVCVS solution for the top was the only necessary for the moment issue, but who knows when I'll need to modify the curves, so I'll work on it as my time allows.