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View Code? Open in Web Editor NEWA Swift version of polygon clipper.
License: MIT License
A Swift version of polygon clipper.
License: MIT License
Currently getting error
"Error: PolyTree struct is needed for open path clipping."
But I have no clue how to use .execute(:polytree)
Cannot instasntiate PolyTree()
Hi. I believe clipper.execute populates the Path object after .union is executed?
I am looking at extracting it to an array of CGPoint. But Path does not seem to have a way to. Please advise?
First, thank you so much for this library! It is exactly what I needed for a little project I've been working on.
I believe this library is causing a memory leak in my app. I use the "intersection" functionality pretty heavily, and memory usage goes up over time. Analysis with Instruments and other Xcode tools leaks me to think that there is a strong circular reference between OutPt
types, as shown in this image:
I believe I was able to eliminate the leak by making next
and prev
weak
(but I did a lot of messy workarounds to prove that out - I probably broke other functionality in the process).
I believe TEdge has a similar issue:
Please let me know if you need more information. I can put some time into trying to create a minimal repro if needed.
I have two Paths - previousPaths
and currentPaths
, and I wish to find the intersections between them, as a single Paths. My thought here is that I could potentially find the intersections between currentPaths
and each individual Path in previousPaths
, which gets me an array of Paths. Now, I wish to unionise them. Perhaps I'm taking the wrong approach, but it's unclear to me how to do this.
Does there needed to be a function added for union(path: Path)
?
var intersections = [Paths]()
for path in previousPaths {
let intersection = currentPaths.intersection(path)
intersections.append(intersection)
}
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