Can ZCallBack work on InflatePaths and Offset in C#

[WileyNg]

Can ZCallBack work on InflatePaths and Offset?

There is a documentation about using ZCallBack for ClipUnion, but how would it work on the InflatePaths and Offset functions??

I have a 3d curve that needs exporting. Would be nice to use the ZCallBack to call the original Z value of the point and use it to orient the new plane for the offseted points.

[AngusJohnson]

No, sorry, it won't work.

[WileyNg]

@AngusJohnson
Thanks so much for answering!
Is there anyway I can know the original Z value of the pre-offseted point?
Is there like a reference pointer in the resulting PointsD to refer back to the original point in a polyline?

[AngusJohnson]

Is there anyway I can know the original Z value of the pre-offseted point?

Probably not. Nevertheless try setting some Z values before offsetting and see if any Z values are retained.

[WileyNg]

@AngusJohnson
Big thanks for replying!
Sorry for being a complete noob on this.

I built the Clipper2Lib by setting the Active Solution Configuration to USINGZ

but I got this error while loading the dll.

If I go for a normal release this bug doesn't occur. Why is it so?
the dll is placed in the same folder as the release.
The application is Rhino 7

[WileyNg]

@AngusJohnson Big thanks for replying! Sorry for being a complete noob on this.

I built the Clipper2Lib by setting the Active Solution Configuration to USINGZ

but I got this error while loading the dll.

If I go for a normal release this bug doesn't occur. Why is it so? the dll is placed in the same folder as the release. The application is Rhino 7

Quick Update
Switching the release of USINGZ to Any CPU fixed the problem!

[WileyNg]

Just tried. the z value always returns as zero.

I wonder if it has always been like this or was it used to work in Clipper 1?

            var points = new List<PointD>();
            for  ( int i=0;i<_polyline.Count; i++)
            {
                var k = new PointD(_polyline[i].X, _polyline[i].Y, (long)_polyline[i].Z);
                points.Add(k);
            }

            var path = new PathD(points);
            

            var p = Clipper.InflatePaths(new PathsD(new[] { path }), offsetDistance, JoinType.Round, EndType.Round);

[brianwinterpixel]

I'm tempted to implement support for this. It doesn't look hard to copy Z values to offset points, and ClipperOffset could allow setting a ZCallback to be used the final cleanup pass.

Are there any known or suspected challenges I don't see?

[AngusJohnson]

Are there any known or suspected challenges I don't see?

Nothing comes to mind 😁.

[briansemrau]

#411