VSTA - Dimension of objects

apox

Hi,

i would like to get the dimension of current working objects or objects that are selected. I found the GetBoundingBox method but have problems to use it.

Johannes Weiman old account

Hi apox,

Unfortunately the GetBoundingBox() method is badly declared in 5.08, which means it's not compatible with VSTA.

regards,
Johannes

Matthias

Does the GetBoundingBox() method work correctly in 5.09?

The following code creates a runtime error:
Part part = Part.Load("path to cad file");
Vector3 min = new Vector3();
Vector3 max = new Vector3();
part.GetBoundingBox(true, min, max);

Is there a mistake in the code?

best regards, Matthias

PerSvensson

Hi Matthias
you need to do it like this
part.GetBoundingBox(true,out min,out max);

Matthias

Hi!
Thanks for your response.
I have part.GetBoundingBox(true, out min, out max) in my code.
Nevertheless I get a RuntimeError 

best regards, Matthias

PerSvensson

Hmmm
It works  for me, maybe it's the part that's wrong.
If you just create a solid box and reference to that instead
Something like this

Station stn = Project.ActiveProject as Station;
Part prt = stn.GraphicComponents["myBox"] as Part;
Vector3 min = new Vector3();
Vector3 max = new Vector3();
prt.GetBoundingBox(true, out min, out max);

Matthias

Ah, now I got it.
I didn't add the part to the station before calling GetBoundingBox(..)
Shure it didn't work...

MaWi81

Additional question: How do I get a boundingBox of the complete robot?

apox

how about this:

        public void Macro_GetRobotBoundingBox()
        {
             // Check that we have an active project
             if (Project.ActiveProject == null) return;

             Station station = Project.ActiveProject as Station;
             RsTask task = station.ActiveTask;
             Mechanism mech = task.Mechanism;
             GraphicComponentCollection gc = mech.GraphicComponents;

             Vector3 global_min = new Vector3(Double.MaxValue,Double.MaxValue,Double.MaxValue);
             Vector3 global_max = new Vector3(Double.MinValue,Double.MinValue,Double.MinValue);
            

             foreach (GraphicComponent _gc in gc)
             {
                 Vector3 min = new Vector3();
                 Vector3 max = new Vector3();
                 _gc.GetBoundingBox(true, out min, out max);

                 if (min.x < global_min.x)
                     global_min.x = min.x;
                 if (min.y < global_min.y)
                     global_min.y = min.y;
                 if (min.z < global_min.z)
                     global_min.z = min.z;

                 if (max.x > global_max.x)
                     global_max.x = max.x;
                 if (max.y > global_max.y)
                     global_max.y = max.y;
                 if (max.z > global_max.z)
                     global_max.z = max.z;
             }
             Logger.AddMessage(new LogMessage(global_min.ToString() + " / " + global_max.ToString()));
        }

MaWi81

Okay this could be a solution.

I thought about a feature of the API that I haven't found yet. The bounding box that is shown if you select the robot inside the objects view.

MaWi812008-4-16 11:42:29

Johannes Weiman old account

The Mechanism class also supports GetBoundingBox() since it inherits GraphicComponent