Clipper2 SimplifyPath do the thing of simplifyPolygon and cleanPolygon in Clipper1?

[pigLoveRabbit520]

Clipper1 Java code:

Paths simple = DefaultClipper.simplifyPolygon(path, Clipper.PolyFillType.NON_ZERO);
if(simple.size() == 0 ){
    return null;
}
// get the biggest area Path
Path biggest = simple.get(0);
double biggestArea = Math.abs(biggest.area());
for(int i = 0; i <simple.size();i++){
    double area = Math.abs(simple.get(i).area());
    if(area > biggestArea ){
        biggest = simple.get(i);
        biggestArea = area;
    }
}
Path clean = biggest.cleanPolygon(srcPath.config.CURVE_TOLERANCE * Config.CLIIPER_SCALE);
if(clean.size() == 0 ){
    return null ;
}

It seems I can do the same thing via

Path64 clean = Clipper.SimplifyPath(path, srcPath.config.CURVE_TOLERANCE * Config.CLIIPER_SCALE);

??

[limingchina]

I've checked the implementation in C++ code. It's not the same. The SimplifyPath in clipper2 seems to just perform simplification of the polygon using some threshold.

The one in the old clipper library is also doing some cleanup work. The C++ implementation is

void SimplifyPolygon(const Path &in_poly, Paths &out_polys, PolyFillType fillType)
{
  Clipper c;
  c.StrictlySimple(true);
  c.AddPath(in_poly, ptSubject, true);
  c.Execute(ctUnion, out_polys, fillType, fillType);
}

[olologin]

SimplifyPoligon should be similar to a normal Union in Clipper2 (there is not StrictlySimple flag anymore because it is not needed, as I understand Clipper2 always behaves as if that flag was always enabled)