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I’m trying to emulate a CAD command for offset.  Essentially I want a parallel offset of a line with no curve stroking on the outside angle.  Similar to bufferer but with the ability to make the stroking density a value of 0.  Any easy way to do that?
Can't u the use the bufferer and then coerce it to a line?

 

 

 


btw, if u ofset it too far, it will distort the outer boundary and u won't get a good offsetline...
Thanks Gio,

 

I tried what you showed, and that works to connect the offset line nicely, however, on the outside offset, it is still a stroked curve.  I'm trying to achieve something like the red line below but on buffer, the minimum stroke density is 1 instead of 0.

 


Hi Alan,

 

 

Here is one that does that.

 

 

 

 

 

 

It is build for a open ended polyline.

 

If u do this to closed u need add a loopfilter in the customtransformer prior to testfilter and send the loops to extender2.

 

 

(i'm trying now to build a lineintersector transformer (vector math, like the offset-affiner) so i can do away with the extending..)

 

Haves fun.
HI,

 

 

With a little fiddling i made one that handles closed and open polylines, even when they intersect.

 

 

 

 

It wont work for curves yet; comming soon!
better picture red are offsets, other lines are original polylines. Buffer is just for visuals.

 

 


Wow.  Looks like that does what i am needing.  I will play around with that to try and get it to work in my application.

 

Thanks Gio

@gio @alan_surveyor did you ever get a workspace/custom transformer completed to do this? I'm looking to do this in one of my workspaces and all these years later there's still no offset tool to do this!


ZeroStrokeOffsetter_V3_cleaned.fmwt@umapper1

 

 

Hi,

 

Here is the workspace i made.

I did update it to 2018 (and cleaned it a bit for you) and i not yield nice.

There is some English annotation there. Hope it helps.

 

Too big offset in relation to the object will of course not yield a desired output. (there is no in-built check for that)

 

Greets and stay healthy!

Gio

 


ZeroStrokeOffsetter_V3_cleaned.fmwt@umapper1

 

 

Hi,

 

Here is the workspace i made.

I did update it to 2018 (and cleaned it a bit for you) and i not yield nice.

There is some English annotation there. Hope it helps.

 

Too big offset in relation to the object will of course not yield a desired output. (there is no in-built check for that)

 

Greets and stay healthy!

Gio

 

Thanks very much @gio! It might help me in the interim. By the way, I've created an Idea on the forum to request a 3D parallel figure transformer to do what we're after if you'd like to upvote it?

https://knowledge.safe.com/content/idea/110729/parallel-figure-transformer.html


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