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Subject: DELETE USELESS ELEMENTS

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Author Messages
BFELSHER

08 Sep 2008 10:28 AM

I found this command in my documentation.  Is this a special add-on or part of a special module?  I only have the standard PLM express modules for design/assy/drafting.

 

Thanks!


Bryan Felsher
True Precision




TPRICKETT

08 Sep 2008 10:33 AM
This is a great function! Bascially, it deletes any items from a CATPart tree which are not parents (directly or indirectly) of any part bodies. Especially usefull for eliminating extraneous wireframe geometry (such as from imports from other systems, or parts from suppliers/customers, etc.).

The only downside is that sometimes we have 3D wireframe which is used in drawings, but which do not lead to any part bodies. This function will delete those items. Does anyone know a way to lock such elements?

Thanks,
Tomm
BFELSHER

08 Sep 2008 11:01 AM
Yes, but I can't find the function. Where is it located? I'd like to try using it!

Thanks.

Bryan Felsher
True Precision




WICHARD


08 Sep 2008 11:07 AM

Thanks for the tip, Bryan - I thought I'd play with the command after you brought it to my attention.

One of the things I noticed right off the bat was this command will remove all my meshes I created with DSE (Digitized Shape Editor). Also, any geometry I created for MFG gets removed because it's not tied to the part - that includes axis systems I use in MFG. But since I create my NC geometry in its own set it's easy to tell CATIA which ones to keep. Pretty cool function.

Richard


CATIA V5 R18 SP6 - Dell Precision 690 - NVIDIA Quadro FX 4500 - XP 64bit 4GB RAM
BFELSHER

08 Sep 2008 11:17 AM
Well guys, I'm glad you are all enjoying this great function, but I can't use it! Where is the function? What workbench? How do you use it?

Thanks.

Bryan Felsher
True Precision




TPRICKETT

08 Sep 2008 11:17 AM
In Part Design workbench, Tools -> Delete Useless Elements...

Once the dialog opens, I usually sort by the Status column to see what it's going to delete. To keep an individual element, right-click in the dialog box, then choose "Keep".
BFELSHER

08 Sep 2008 11:38 AM
Just as I feared...I have Catia V5 PLM express edition. It's a little less expensive, but the reason I bought it was because it came with Video Analyze, and some other NC programming functions that would have cost about $8000 to add-on, otherwise....oh well...apparently, it doesn't have Delete Uselss Elements. No wonder I can't use it!

Bryan Felsher
True Precision




DAVE SUMM


08 Sep 2008 04:49 PM
if you have MD2 it is only available in part design, if you have HD2 it's also available in GSD

David Summerscales

Concentric Asia Pacific
BFELSHER

08 Sep 2008 05:37 PM
Thanks Dave. Much appreciated...I just have CAC+AME. The licenses have different names with Catia PLM express which is the affordable configuration. Base price is only $10,000- maybe I'll call and see how much more to add on some more modules while V5 is still the ticket...

Bryan Felsher
True Precision




DAVE SUMM


09 Sep 2008 05:47 AM

PLM Express versions of MD2 & HD2 are purchased via "Enablers"and, or "Extensions".. one way to get MD2 is via the "Enabler" MCE and is comprised of

CATIA - Part Design 2
CATIA - Assembly Design 2
CATIA - Generative Shape Design 1
CATIA - Functional Molded Parts 1

One way to get HD2 is to add the "Extension" HDX which comprises of

CATIA - Generative Shape Design 2
CATIA - Developed Shapes 1
CATIA - FreeStyle Shaper 1

I'm not a salesman or a PLMX expert so there may be cheaper ways of doing this


David Summerscales

Concentric Asia Pacific
JACK

09 Sep 2008 10:22 AM

Bryan,

Try VIEW + COMMAND LIST and scroll down through all the commands. If DELETE USELESS ELEMENTS is there, click on it and OK.

BFELSHER

09 Sep 2008 12:22 PM
Jack - Thanks! That is exactly what I needed. I found it and it works.

Dave- thanks for the info. Apparently, I have it already and it works.

This is an awesome forum!

Bryan Felsher
True Precision




BUSTERCHOPS


11 Sep 2008 07:01 PM
Very poorly designed function. Delete useless elements deletes everything. It has no way of differentiating between what needs to be deleted
and what needs to be kept. There is no way to multi select shift or ctrl select several elements at once so you need to select and delete each
and every component one at a time with out knowing what has parent child relationships. I place all necessary elements on the screen separated
by geometrical sets. Applying colors and using the advanced search by color aids in setting up your geometrical sets. Then select Delete Useless
Elements. Everything will be selected. You then deselect each item from the tree that you want to keep, having the elements you want to keep in
geometrical sets makes this waaaay easier then hunting and pecking throughout the D.U.E. As you deselect you will see parents/children deselecting
in other geometrical sets these will remain scattered about after selecting OK . You can then reorganize those in the correct sets. If there is another way
of using this tool I would like to know.
GSAUN


12 Sep 2008 12:45 PM
It isn't perfect (I'd like to be able to multi-select elements I want to keep and have an option to always keep), but I think it works as intended. It works on a hierarchical basis, with solid bodies, GSD surfaces, and such at the top and "isolated" wireframe & surfaces at the bottom. If, for example, you had a file with a solid body in it and a sketch exists that isn't linked to that solid body or any other top geometry type, DUE considers it useless. That is because it is designed to be rid of extraneous geometry created during the course of creating those top geometry types. If you have a bunch of isolated wireframe or surfaces not linked to top geometry types, then yes, it defaults to deleting them all.

Gary Saunders
DAVE SUMM


13 Sep 2008 12:13 AM
dead easy... arrange your model so that the things that you want to keep, like a final join/trim, are easily found, in their own Geo set... it's an excellent function if you understand it properly... it will default to keep a partbody's parents if there is a solid present, if you work on surfaces then apply the command then simply click in the tree the element you want to keep... it'll then select the useless elements for deletion

David Summerscales

Concentric Asia Pacific
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