Creating Face Group

MehdiZangenehBar

function CreateFaceGroup(mesh, group_name, facet_array)
{
    mesh.beginEdit();
    if (!mesh.createFaceGroup(group_name)) 
    {
        print("Failed to create face group: " + group_name);
        return;
    }
    var face_group = mesh.getFaceGroup(mesh.getNumFaceGroups() - 1);
    for (var i = 0; i < facet_array.length; i++)
    {
        face_group.addIndex(facet_array[i]);
    }
    mesh.activateFaceGroup(mesh.getNumFaceGroups() - 1);
    mesh.finishEdit();
}

Face groups created, but vertex/face counts are zero

MehdiZangenehBar

it seems there is no way to add facet to facegroup:

---

Scene.clear();

function create_cylinder()
{
    var settings = new DzSettings();
    Geometry.getDefaultPrimitiveOptions(5, settings);
    
    settings.setFloatValue("Height", 2);
    settings.setStringValue("HeightUnits", "m");
    settings.setIntValue("Segments", 5);
    settings.setIntValue("Sides", 16);
    settings.setBoolValue("CapMin", true);
    settings.setBoolValue("CapMax", true);

    var cylinder_node = Geometry.createPrimitive(settings);
    Scene.addNode(cylinder_node);
    
    return cylinder_node;
}

var node = create_cylinder();
var obj = node.getObject();
var shape = obj.getCurrentShape();
var mesh = shape.getGeometry();

mesh.createFaceGroup("Default");
var default_group = mesh.findFaceGroup("Default");

mesh.createFaceGroup("Top");
var top_group = mesh.findFaceGroup("Top");

mesh.createFaceGroup("Bottom");
var bottom_group = mesh.findFaceGroup("Bottom");

mesh.beginEdit();
var facet = mesh.getFacet(0);
facet.faceGroupIndex = mesh.activateFaceGroup("Bottom");
bottom_group.addIndex(0);
mesh.finishEdit()