Control Surfaces by Python API

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Alexandre Aniol

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Apr 11, 2024, 8:54:06 AM4/11/24

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Hello, I'd like to add a control surface to my model, but the dimensions are wrong, as it spans from UStart = 0.4 to UEnd 0.6. I guess i have to turn on a flag for Eta, but i don''t know how. Thank you for the help.

wing_id = vsp.AddGeom("WING")

cs_id = vsp.AddSubSurf(wing_id, vsp.SS_CONTROL)

vsp.SetParmVal(wing_id, "EtaStart", "SS_Control_1", 0.1)
vsp.SetParmVal(wing_id, "EtaEnd", "SS_Control_1", 0.4)
vsp.SetParmVal(wing_id, "Length_C_Start", "SS_Control_1", 0.2)

vsp.AutoGroupVSPAEROControlSurfaces()
vsp.Update

vsp.WriteFile("CS_wing.vsp3")

test_cs.py

Rob McDonald

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Apr 12, 2024, 11:50:09 PM4/12/24

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You're going to need the "EtaFlag" to be set to 1.

Rob

Alexandre Aniol

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Apr 13, 2024, 6:38:41 AM4/13/24

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Thank you! Is there a ways to see all options in a specific group?

Rob McDonald

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Apr 13, 2024, 11:19:32 AM4/13/24

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I often use the 'Design Variables' GUI for this.

1) Open Design Variables GUI.

2) Drag-n-drop 'nearby' variable from the label button to the Design Variables GUI.

It should appear as an available design var.

3) Click on the variable in the Design Variable list

4) Examine the Parm Chooser above -- Container, Group, Parm

Rob

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