CFXPOST V13 Mirror Transform without Copy

singer1812 · January 10, 2012, 11:10

Anyone know how to do this? I want to mirror a contour, but the mirror transform retains the original contour.

I cant rotate the contour (which doesnt retain the original copy) becuase it is a 3D object with different contours on the front and back side. Rotation just shows the other side of the contour, which is not what I intend.

singer1812 · January 10, 2012, 11:15

Sorry to reply to my own post, but would like to remove one other method someone might suggest. I tried rotating 180 degrees with face culling, which almost works, but shows unwanted interior geometry, so that can't be used.

stumpy · January 10, 2012, 16:38

A Clip Plane could hide the original copy, but it would hide everything else too. Do you need to retain some bits of the original geometry?

singer1812 · January 10, 2012, 16:41

The reflection plane cuts through the center of the body, so a clip plane doesn't work. But that does give me an idea, I could mirror and translate a large distance and zoom in to exclude the original body.

I will give that a try, thanks!

singer1812 · January 10, 2012, 18:27

Just as an FYI, the translate and mirror doesn't work. Any other ideas appreciated.

ghorrocks · January 10, 2012, 20:41

This is pretty horrible but you could export the contour line as XY points then do the mirror yourself and then re-enter it into CFD-Post as a points. If nothing else works this might do it.

singer1812 · January 11, 2012, 09:59

Horrible is the right word for that!

I dont think that will be practical in my case. I am generating eyecandy movies for upper-ups and wanted the front and back side of the item pointing in the same direction (I am using a 2 view window to display both at same time), and thought someone might have something quick and clever that would work.

I will probably end up generating it without the mirror.

singer1812 · January 11, 2012, 12:47

As an FYI to the forum. Got word back from CFX and this behavior is a bug. They are hoping to have it fixed in V14.5

January 10, 2012, 11:10	CFXPOST V13 Mirror Transform without Copy	#1
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	Anyone know how to do this? I want to mirror a contour, but the mirror transform retains the original contour. I cant rotate the contour (which doesnt retain the original copy) becuase it is a 3D object with different contours on the front and back side. Rotation just shows the other side of the contour, which is not what I intend.

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January 10, 2012, 11:15		#2
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	Sorry to reply to my own post, but would like to remove one other method someone might suggest. I tried rotating 180 degrees with face culling, which almost works, but shows unwanted interior geometry, so that can't be used.

January 10, 2012, 16:38		#3
stumpy Senior Member Join Date: Apr 2009 Posts: 531 Rep Power: 21	A Clip Plane could hide the original copy, but it would hide everything else too. Do you need to retain some bits of the original geometry?

January 10, 2012, 16:41		#4
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	The reflection plane cuts through the center of the body, so a clip plane doesn't work. But that does give me an idea, I could mirror and translate a large distance and zoom in to exclude the original body. I will give that a try, thanks!

January 10, 2012, 18:27		#5
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	Just as an FYI, the translate and mirror doesn't work. Any other ideas appreciated.

January 10, 2012, 20:41		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,852 Rep Power: 144	This is pretty horrible but you could export the contour line as XY points then do the mirror yourself and then re-enter it into CFD-Post as a points. If nothing else works this might do it.

January 11, 2012, 09:59		#7
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	Horrible is the right word for that! I dont think that will be practical in my case. I am generating eyecandy movies for upper-ups and wanted the front and back side of the item pointing in the same direction (I am using a 2 view window to display both at same time), and thought someone might have something quick and clever that would work. I will probably end up generating it without the mirror.

January 11, 2012, 12:47		#8
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 21	As an FYI to the forum. Got word back from CFX and this behavior is a bug. They are hoping to have it fixed in V14.5