topic Betreff: Solid3d.StlOut with a better quality? in .NET Forum

Solid3d.StlOut with a better quality?

stefan.hofer — Sun, 20 Jun 2021 16:13:57 GMT

I had a script that eported my models to stl-files.

thisDrawing.SendCommand("STLOUT" + " " + "g" + " " + group.Name + Environment.NewLine + " " + " " + completeFilename + Environment.NewLine);

And i used the FACETRES variable to change the model quality.

acApp.SetSystemVariable("FACETRES", 8);

First problem is: Since Acad2021 it does no longer change the variable via script. Other variables like FILEDIA are still working.

Second: I found a better way to export the models. But this example completly ignore the FACETRES value and and export super lowpoly only.

Solid3d sol = (Solid3d)tr.GetObject(myId, OpenMode.ForRead); sol.StlOut(Path.Combine(targetDirectory, newFileName + ".stl"), true); //ignore facetres settings

It's possible to get a higher quality with that solid3d.stlout command?

Re: Solid3d.StlOut with a better quality?

Alexander.Rivilis — Sun, 20 Jun 2021 18:14:43 GMT

@stefan.hofer wrote:

...First problem is: Since Acad2021 it does no longer change the variable via script. Other variables like FILEDIA are still working.

Are you sure???

@stefan.hofer wrote:

Second: I found a better way to export the models. But this example completly ignore the FACETRES value and and export super lowpoly only.
Solid3d sol = (Solid3d)tr.GetObject(myId, OpenMode.ForRead); sol.StlOut(Path.Combine(targetDirectory, newFileName + ".stl"), true); //ignore facetres settings

It's possible to get a higher quality with that solid3d.stlout command?

You can try to P/Invoke AcDb3dSolid::stlOut(const ACHAR* fileName,
Adesk::Boolean asciiFormat, double maxSurfaceDeviation = 0.0 /*use default*/) const;

(available since AutoCAD 2015)

Re: Solid3d.StlOut with a better quality?

stefan.hofer — Mon, 21 Jun 2021 08:30:09 GMT

-> Are you sure??? yes i am.

double originalfacetres = System.Convert.ToDouble(acApp.GetSystemVariable("FACETRES")); ed.WriteMessage("FACETRES original value: " + originalfacetres.ToString() + "\n"); //result is 1 acApp.SetSystemVariable("FACETRES", 8); double newfacetres = System.Convert.ToDouble(acApp.GetSystemVariable("FACETRES")); ed.WriteMessage("FACETRES new value: " + newfacetres.ToString() + "\n"); //result is (still) 1

-> AcDb3dSolid

that's objectARX isn't it?

if this is the only way to do this i just give up at this point and live with this result.

Betreff: Solid3d.StlOut with a better quality?

stefan.hofer — Mon, 21 Jun 2021 09:48:47 GMT

Well i found a solution for the FACETRES problem

//Does not work Autodesk.AutoCAD.ApplicationServices.Core.Application.SetSystemVariable("FACETRES", 8); //This one work... AcadDocument myDrawing = (AcadDocument)Autodesk.AutoCAD.ApplicationServices.Core.Application.DocumentManager.MdiActiveDocument.GetAcadDocument(); myDrawing.SetVariable("FACETRES", 8);

Betreff: Solid3d.StlOut with a better quality?

stefan.hofer — Mon, 21 Jun 2021 10:19:54 GMT

okay this is a bit embarrassing but my first post was not entirely correct...

Solid3d.StlOut does not ignore the FACETRES value. I had a different problem.

The FACETRES variable is per drawing and not global.

(I create a new drawing for the export and had to change the variable in this new document and everything looks good now)

Betreff: Solid3d.StlOut with a better quality?

Alexander.Rivilis — Mon, 21 Jun 2021 10:26:52 GMT

using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Runtime; // This line is not mandatory, but improves loading performances [assembly: CommandClass(typeof(SetFacetRes.MyCommands))] namespace SetFacetRes { public class MyCommands { [CommandMethod("SetFacetRes")] public void MyCommand() { Document doc = Application.DocumentManager.MdiActiveDocument; Editor ed = doc.Editor; double fasetRes = (double) Application.GetSystemVariable("FACETRES"); ed.WriteMessage("\nFacetRes={0}", fasetRes); Application.SetSystemVariable("FACETRES", 8); fasetRes = (double)Application.GetSystemVariable("FACETRES"); ed.WriteMessage("\nFacetRes={0}", fasetRes); } } }

What wrong? AutoCAD 2021.1.1

Betreff: Solid3d.StlOut with a better quality?

Alexander.Rivilis — Mon, 21 Jun 2021 10:28:53 GMT

Other way for setting FACETRES is using Database.Facetres property.

Betreff: Solid3d.StlOut with a better quality?

stefan.hofer — Mon, 21 Jun 2021 11:05:26 GMT

-> Other way for setting FACETRES is using Database.Facetres property.

don't forget the DocumentLock this way 🙂