Capture subsequent GetObject calls

Rhino Developer
, ,
1

Hi,

in my command, I’m asking users to select existing objects from the scene. The selection order is important, so rather than using GetObject.GetMultiple(), I’d like to stack a few GetObject() calls.

The first one works without issues, the second doesn’t trigger, though.

protected override Result RunCommand(RhinoDoc doc, RunMode mode)
        {
            Point3d startPoint;
            using (GetObject go = new GetObject())
            {
                go.SetCommandPrompt("Select start point");
                if (go.Get() != GetResult.Object)
                {
                    RhinoApp.WriteLine("No start point was selected.");
                    return go.CommandResult();
                }
                startPoint = go.Object(0).Point().Location;
            }

            Point3d endPoint;
            using (GetObject go = new GetObject())
            {
                go.SetCommandPrompt("Select end point");
                if (go.Get() != GetResult.Object)
                {
                    RhinoApp.WriteLine("No end point was selected.");
                    return go.CommandResult();
                }
                endPoint = go.Object(0).Point().Location;
            }

            doc.Views.Redraw();
            return Result.Success;
        }

Enabling go.OneByOnePostSelect = true; on the second call forces the input prompt, but disables window selection and users now need to click the objects individually.

What am I missing?

2

Hi @mrhe,

Maybe this?

protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
  var go = new GetObject { GeometryFilter = ObjectType.Point };
  go.SetCommandPrompt("Select start point");
  if (go.Get() != GetResult.Object)
    return Result.Cancel;

  var pointObj = go.Object(0).Point();
  if (null == pointObj)
    return Result.Failure;

  var startPoint = pointObj.Location;

  go.SetCommandPrompt("Select end point");
  go.EnablePreSelect(false, true);
  go.DeselectAllBeforePostSelect = false;
  if (go.Get() != GetResult.Object)
    return Result.Cancel;

  pointObj = go.Object(0).Point();
  if (null == pointObj)
    return Result.Failure;

  var endPoint = pointObj.Location;

  RhinoApp.WriteLine("Start point = {0}", startPoint);
  RhinoApp.WriteLine("End point = {0}", endPoint);

  return Result.Success;
}

– Dale

1 Like
3

Thanks @dale!

Exactly what I needed!