VSTA - Dimension of objects

RobotStudio
1

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.

2

Hi apox,

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

regards,
Johannes

3

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

4

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

5

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

best regards, Matthias

6

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);

7

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

8

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

9

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()));
}

10

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.

11

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