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Old   April 23, 2009, 06:43
Default Geometry translation
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wei
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I want to rotate and translate a geometry to a new location. How do I do that?
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Old   April 23, 2009, 09:14
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If you are using STAR CD use the vgen command. For translation you can use this directly. The syntax of this command (explained through an example is):

cset all
vset news cset
vgen,2,0,vset,,,dx,dy,dz (replace dx, dy and dz accordingly)

The above example is for translating. You'd have the Cartesian co-ordinate system on in such a case.
If you want to rotate the geometry activate the cylindrical co-ordinate system and then use the vgen command to rotate.
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Old   April 23, 2009, 09:16
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Sorry forgot to mention that if you are using STAR CCM+, it is straight forward. Right click on the region and you'd see the transform option. This has rotate, scale, translate options.
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Old   April 23, 2009, 10:38
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It is working well. Thank you. I am using starcd 3.26.

If I want to add a new mesh using current surface model on top of the top layer of a previous mesh, what can I do?
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Old   April 27, 2009, 11:30
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Anton Lyaskin
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You can create a surface mesh (shells) at the top and then extrude it (see help for VCEXTRUDE command)
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Old   April 28, 2009, 04:50
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what commands are normally used to create a surface mesh (shell) from vertices?

thank you.
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Old   April 28, 2009, 06:59
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If you already have a 3D mesh, you can use CFIN command with SHELL option (from GUI: Tools->Cell Tool->Add Shells->Surface (New edge Vertex Set)...)
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