[ICEM] Geometry too large!

brunorgs · April 29, 2010, 12:00

Hi there,
I am facing a strange problem in ICEM, and I wonder if someone could help me.
I have a fairly large (in terms of memory) geometry in ICEM (~430 MB). I needed just a small part of the model, so I erased almost the whole geometry and saved it, but the geometry file still have almost 430 MB! After I erased the whole geometry , all parts and dormant entities, but the geometry files is still near 430 MB. Someone have any idea of what is happening? Can the file be corrupt?

Thanks!

h.m lee · April 30, 2010, 10:51

Really? I wasn't aware of it before.
Can you explain the details of how you "erased the whole geometry , all parts and dormant entities"?
Thanks

brunorgs · April 30, 2010, 14:39

Quote:

Originally Posted by h.m lee

Really? I wasn't aware of it before.
Can you explain the details of how you "erased the whole geometry , all parts and dormant entities"?
Thanks

Hi. First I restored the dormant entities ("Restore Dormant Entities" button). Then I used the "Delete Any Entity" button with the hotkey "a", so that all geoetry is erased, visible or not, right? After, I erased all Parts manually and saved the geometry.

h.m lee · April 30, 2010, 15:01

I think surface is the most important, when a surface is deleted, its attached curves and points can be deleted permanently. But if a surface is still existed, it need points and curves to position itself.
Is there any help to your situation?

brunorgs · April 30, 2010, 17:57

Not sure if I understood. Once the surfaces and everything else is gone, what else can be done?

h.m lee · April 30, 2010, 19:30

try steps to delete entities:
1. delete the surfaces that you don't need at first;
2. delete the curves and points that were attached to the surfaces you had deleted.
let me know your result.

brunorgs · May 3, 2010, 10:19

I tried that, but the same thing occurred...

h.m lee · May 3, 2010, 12:19

I don't know what's the matter. In my experience, when some parts of geometry are deleted, the file size will decrease nearly proportionally.
If you can send me your file in compressed format to li.hming.ca@gmail.com, I would like to try your case. Alternatively, you can take a shot at commands like ' save some geometry file as'.
Good luck

brunorgs · May 3, 2010, 16:08

I tried to save only the visible geometry, but it didn't work. If you don't mind to take a look, I've uploaded the geometry to this link:

http://www.4shared.com/file/LkbEqVmW...ura_Flare.html

Fortunately, the zipped file is much smaller than the original: 10 MB.

Thanks for the help,
Bruno

PSYMN · May 20, 2010, 22:18

Tetin files are ASCII... (Text Files).

You can open them with a text editor (I recommend TextPad for such a large model, NotePad will choke).

In your example, you will see tons of messages about how often this model has been saved, etc. There are also lines about undo, etc.

You could try to delete these lines in here, but it will take you all day.

Another option is to go into ICEM CFD, you don't even need to load the big file. Under the Edit Menu, you will find an option for "Shrink Tetin File"

This function will prompt you to select the file you want to shrink, and then it will give you an opportunity to name the new file.

I your case, it shrunk this 426MB file down to 800K.

PSYMN · May 20, 2010, 22:20

Here are the messages from the message window... That is a lot of lines to remove... Usually, there are just a few dozen junk lines. Not sure how you got it so high.

Select tetin file to shrink
Save shrinked tetin file as
Reading tetin file Shrink.tin...done
Found 5441197 line(s) to remove

April 29, 2010, 12:00	Geometry too large!	#1
brunorgs New Member Bruno Join Date: Apr 2010 Posts: 16 Rep Power: 16	Hi there, I am facing a strange problem in ICEM, and I wonder if someone could help me. I have a fairly large (in terms of memory) geometry in ICEM (~430 MB). I needed just a small part of the model, so I erased almost the whole geometry and saved it, but the geometry file still have almost 430 MB! After I erased the whole geometry , all parts and dormant entities, but the geometry files is still near 430 MB. Someone have any idea of what is happening? Can the file be corrupt? Thanks!

May 20, 2010, 22:18	Shrink Tetin File	#10
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Tetin files are ASCII... (Text Files). You can open them with a text editor (I recommend TextPad for such a large model, NotePad will choke). In your example, you will see tons of messages about how often this model has been saved, etc. There are also lines about undo, etc. You could try to delete these lines in here, but it will take you all day. Another option is to go into ICEM CFD, you don't even need to load the big file. Under the Edit Menu, you will find an option for "Shrink Tetin File" This function will prompt you to select the file you want to shrink, and then it will give you an opportunity to name the new file. I your case, it shrunk this 426MB file down to 800K. TrII4d and PavithranR like this.

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April 30, 2010, 10:51		#2
h.m lee New Member Ming Join Date: Jul 2009 Posts: 14 Rep Power: 17	Really? I wasn't aware of it before. Can you explain the details of how you "erased the whole geometry , all parts and dormant entities"? Thanks

April 30, 2010, 15:01		#4
h.m lee New Member Ming Join Date: Jul 2009 Posts: 14 Rep Power: 17	I think surface is the most important, when a surface is deleted, its attached curves and points can be deleted permanently. But if a surface is still existed, it need points and curves to position itself. Is there any help to your situation?

April 30, 2010, 17:57		#5
brunorgs New Member Bruno Join Date: Apr 2010 Posts: 16 Rep Power: 16	Not sure if I understood. Once the surfaces and everything else is gone, what else can be done?

April 30, 2010, 19:30		#6
h.m lee New Member Ming Join Date: Jul 2009 Posts: 14 Rep Power: 17	try steps to delete entities: 1. delete the surfaces that you don't need at first; 2. delete the curves and points that were attached to the surfaces you had deleted. let me know your result.

May 3, 2010, 10:19		#7
brunorgs New Member Bruno Join Date: Apr 2010 Posts: 16 Rep Power: 16	I tried that, but the same thing occurred...

May 3, 2010, 12:19		#8
h.m lee New Member Ming Join Date: Jul 2009 Posts: 14 Rep Power: 17	I don't know what's the matter. In my experience, when some parts of geometry are deleted, the file size will decrease nearly proportionally. If you can send me your file in compressed format to li.hming.ca@gmail.com, I would like to try your case. Alternatively, you can take a shot at commands like ' save some geometry file as'. Good luck

May 3, 2010, 16:08		#9
brunorgs New Member Bruno Join Date: Apr 2010 Posts: 16 Rep Power: 16	I tried to save only the visible geometry, but it didn't work. If you don't mind to take a look, I've uploaded the geometry to this link: http://www.4shared.com/file/LkbEqVmW...ura_Flare.html Fortunately, the zipped file is much smaller than the original: 10 MB. Thanks for the help, Bruno

May 20, 2010, 22:20		#11
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Here are the messages from the message window... That is a lot of lines to remove... Usually, there are just a few dozen junk lines. Not sure how you got it so high. Select tetin file to shrink Save shrinked tetin file as Reading tetin file Shrink.tin...done Found 5441197 line(s) to remove