Assembly Simulation : Update View at will and not by default ?

Anonymous · ‎10-22-2008

Hi,

How can we update the positions(Transformation Matrix) of more than one component or occurrence(say 20 components) at the same time ?

The following is the code, but it results in update of ActiveView for each component for each frame. Ideally I would want the update of ActiveView once a frame.

for(int iFrame = 0; iFrame < noOfFrames; iFrame++)

{ AllOccurrencesInNthFrameArray = (Array)AllFramesTransformArray.GetValue(iFrame);

for(int iOccurrence = 0; iOccurrence < noOfOccurrences; iOccurrence++)

{

   temp_occurrenceTransformArray = (Array)AllOccurrencesInNthFrameArray.GetValue(iOccurrence);

   //Get Current Occurrence

   current_occurrence = (Inventor.ComponentOccurrence)m_occurencesArray.GetValue(iOccurrence);

   current_occurrenceTransformation.PutMatrixData(ref temp_occurrenceTransformArray);

   current_occurrence.Transformation = current_occurrenceTransformation;

}

m_inventorApplication.ActiveView.Update();

}

But in Inventor 2008, the update of component's position is happening in the for-loop itself, which is not intended.

Is there any way to stop auto-update of assembly components, so that ActiveView.Update() can be used whenever needed.

Regards,

Rajeev Lochan

Blog: http://www.smallguru.com

Web: http://www.ar-cad.com

Edited by: lochan94 on Oct 23, 2008 1:12 AM Edited by: lochan94 on Oct 23, 2008 1:14 AM

Anonymous · ‎10-22-2008

A new method
AssemblyComponentDefinition.TransformOccurrences was added in
Inventor 2009 to address this. Unfortunately, there isn't a great solution for
Inventor 2008. You could try setting the 'Defer Updates' option for assemblies,
but I don't think that's buy you much.

Sanjay-

Anonymous · ‎10-23-2008

Thanks Sanjay for responding,

It is sad to know that there is no direct way to do this in Inventor 2008. By setting

m_inventorApplication.AssemblyOptions.DeferUpdate = true;

As far as I understand and have checked, it is used when we dont want Part/Occurrences/Components files to be updated when we make any changes to them in an assembly. I guess the changes here mean those made to Sketches/part features of the individual parts and not the "TransformationMatrix" of these parts.

Please help me out if my understanding is wrong.

Thanks,

Rajeev Lochan

http://www.smallguru.com

Anonymous · ‎10-23-2008

Yes, you're right about the intent of the defer
updates flag. However, there have been instances of performance improving
(slightly) when that flag is set (even when the referenced components haven't
changed). In any case, I don't think it'll help you. Sorry, there isn't a better
solution for Inventor 2008.

Sanjay-

Anonymous · ‎10-24-2008

Thanks again for the help