Clipper1 compatability . about clipper2

[sethhillbrand]

FWIW, I disagree with the assessment of Clipper 2 as not production ready. We (KiCad) had a number of long standing issues with Clipper 1 that could not be resolved due to the architecture. They have been resolved by Clipper2. We have reported two bugs in Clipper2 and both have been fixed quickly.

Clipper 2 is not 100% call compatible. You need to read the documentation where all differences are clearly stated and compared with equivalent Clipper1 ideas.

Lastly, I'd recommend moving this to a discussion rather than an issue.

[philstopford]

I can only echo @sethhillbrand's comments. I have several production tools that were ported to Clipper2 and tracked its progress through to the current day. Angus fixed issues reported and I've not had an issue to report for a long while now. The performance boost has been phenomenal and in many cases, the current system requires fewer workarounds (e.g. for open path clipping in terms of raycasting) than I needed for Clipper 1.

Porting should actually be fairly painless in most cases. Switch the library over and see what the IDE throws up. Fixing it from there is largely just adapting to new syntax. The one minor thing to note is that open path offsetting is per-side, not width, in Clipper 2.

[yoavmil]

#209
I was testing once migration from clipper 1 to clipper 2.
I wrote in in the link above notes as I was going by.
After making it compile, I found 2 issues. one was the inflating lines was differenting from clipper1. the other is that in my usecase clipper2 was slower.
one last thing, I feel still that clipper2 isnt mature enough yet.

[J-Dunn]

Thanks for making those notes available. That at least tells it's doable.

Some of the notes are not too clear what you substitute with what but I guess I'll work it out once I did into the code.

I feel still that clipper2 isnt mature enough yet.

do you mean it is less mature than clipper1 ?

[yoavmil]

Indeed. Clipper2 isn't 100% production ready AFAIK. I follow the issues posted here, and sometimes I see poeple complainig about critical bugs.
Clipper1 has a been then for years, used by many.