Hi guys, im struggling with getting open nest to work how i need it to.
Open nest keeps coming up with this error message and i don’t really understand it.
System.NullReferenceException: Object reference not set to an instance of an object.
at OpenNestLib.OpenNestUtil.ToPolylines(IEnumerable`1 nurbsCurves, Boolean collapseShortSegments)
at OpenNest.OpenNestFullComponentCleanUp.SolveInstance(IGH_DataAccess DA)
When it does descide to work, it just stacks all my surfaces ontop of eachother rather than spreading them out across the sheet.
Then other times its the unroll component im having trouble with and its spitting out this error
Solution exception:Unable to cast object of type ‘Grasshopper.Kernel.Types.GH_Surface’ to type ‘Grasshopper.Kernel.Types.GH_Brep’.
Can anyone help me out with where im going wrong here please?
Packs your surfaces and nests based on outside (longest) curve. One of your surfaces is too large to fit on your sheet. You could cut it into multiple surfaces and nest them.
Looks like your issue is Unroll instead of OpenNest, though as far as I know, only one “paper” curve is expected. OpenNest will replicate that as needed.
Also, I believe OpenNest ‘Geo’ should be curves, not breps.