Import nested Block from file

Rhino Developer
1

I want to import blocks from a file into the file. However, the nested blocks are not added to the InstanceDefinitionTable. I checked the data, and the nested blocks are imported as InstanceReferenceGeometry, but they are not added to the InstanceDefinitionTable.

        string filePath = string.Empty;
        if (!DA.GetData(0, ref filePath)) return;
        File3dm file3dm = File3dm.Read(filePath);
        RhinoDoc doc = RhinoDoc.ActiveDoc;
        List<string> stringGeomatry = new List<string>();
        foreach (var instanceDef in file3dm.InstanceDefinitions)
        {
            List<GeometryBase> blockList = new List<GeometryBase>();
            List<ObjectAttributes> blocattribute = new List<ObjectAttributes>();
            foreach (var obj in instanceDef.GetObjectIds())
            {
                var taype = file3dm.Objects.FindId(obj);
                blockList.Add(taype.Geometry);
                blocattribute.Add(taype.Attributes);
            }
            doc.InstanceDefinitions.Add(instanceDef.Name, instanceDef.Description, Point3d.Origin, blockList,blocattribute);
        }
2

image
image1918×638 181 KB

private void RunScript(string path, ref object a)
{
    var doc3dm = RhinoDoc.OpenHeadless(path);
    var geometryList = new List<IGH_GeometricGoo>();
    foreach (var rhinoObject in doc3dm.Objects.GetObjectList(Rhino.DocObjects.ObjectType.InstanceReference))
    {
        var geometry = GH_Convert.ObjRefToGeometry(new ObjRef(rhinoObject));
        if (geometry != null)
            geometryList.Add(geometry);
    }
    doc3dm.Dispose();
    a = geometryList;
}

Blocks.zip (35.5 KB)

3

In rhino 8 blocks can created from imported geometry using the new data types in grasshopper.

1 Like
5

Thank you for your guidance, but I want to develop my program in Rhino version 7.I am working with files converted to binary arrays, and in my plugin, there is no access to the file path

6

Thank you, Mahyar! My problem is with importing data into Rhino 7