3d profile generation

[psychic]

i need to generate a 3D model and then registrate it with CAD for inspection.can this be done in LABVIEW

[BruceAmmons]

Some people might say anything can be done in LabVIEW, but this would not be an easy one.

Bruce

[RManion]

Though most things certainly can be done in LabVIEW, I am not sure if this will be possible. Though I would need more information to ensure an accurate answer, my immediate reaction to your question is that I do not know of any 3d modeling tools in LabVIEW. Additionally, I am not quite sure what you mean when you say "registrate it with CAD."

With more information on the specifics of your application we might be able to work out some kind of solution. However, from your brief description I am going to guess that this might not be the right tool for the job.

Hope this helps,

Robert
Applications Engineering
National Instruments

[psychic]

hi
when i say registrate with a cad model,i mean compare the generated 3d model with a model of the object in CAD.the best method to do this is using the iterative closest point algorithm along with the generalized total least squares technique.an approximate 3d model can be generated in labview,but that would'nt suffice as an exact model is needed.moreover we will have to use an active method(i.e like using LASER)to generate the model.
i need some inputs as to how this can be done..

[RManion]

Hello again,

Let me double check my understanding of what you are working on. If I understand correctly, you are more or less looking at something you have machined and comparing it to the design CAD model? Looking perhaps at the differences between an object that was created (and scanned with some laser system) and its original CAD model? Let me know if this sounds correct.


If you were to try to accomplish this in Labview, you would need to know several things.

1) In what format are you storing or importing the CAD data to Labview? I personally am not so familiar with CAD to know how models are stored. Also, if you scan a physical object and its 3d representation into your computer, how is it represented?

2) In what way are you taking those two sets of information and comparing them? Labview certainly would have no troubles implementing a particular algorithm, but knowing how to take the two data types and compare them is essential.

Hope this helps,

Robert

[xyz.abc]

it can be easily done..i have the full method to do it..will contact u...