Export stl files with C# component in GH

piac · November 7, 2018, 6:12pm

The method @dsonntag mentions will work nicely for all supported file extensions.
Otherwise, if you want to export meshes to OBJ in Rhino 6, you can use:
https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_FileIO_FileObj_Write.htm

See this thread for an example:

Finally, writing a simple version of an STL file is not terribly complicated. I wrote Turtle a while ago, and it contains an example:

github.com

piac/TurtleMesh/blob/master/Turtle/Serialization/Persistance.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace Turtle.Serialization
{
    /// <summary>
    /// Allows to read and write an ngonal mesh from and to any file or stream.
    /// </summary>
    public static class Persistance
    {
        public static void Write(ITurtleMesh mesh, TextWriter sw)
        {
            sw.WriteLine("# OBJ file written by TurtleMesh");
            var ci = System.Globalization.CultureInfo.InvariantCulture;

            sw.WriteLine("# " + mesh.VertexCount.ToString(ci) + " vertices");

            for (int i = 0; i < mesh.VertexCount; i++)

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also the second link above contains a definition that already does that. Check it out!