Issue with Wing Parameters in VSP Script

[Mike Henson]

The attached vspscript iterates on 3 wing parameters (sweep, aspect ratio, taper ratio) to output a DegenGeom file for each combination.

The wing sweep parameter is behaving as expected but the other parameters do not appear to be update in the output DegenGeom file.  To exercise script, add a single wing component to the VSP session.

Any help or suggestions would be greatly appreciated.

Regards,

Mike

void main()

{

array< string > @type_array = GetGeomTypes();

if( type_array.size() > 0 )

for ( int i = 0 ; i < int(type_array.size()) ; i++ )

{

Print( type_array[i]);

}

array< string > @geom_ids = FindGeoms();

    if ( geom_ids.size() < 1 )

{

Print( "---> Did not find Geoms " );

return;

}

// =========================

// === Design Parameters ===

// =========================

array< float > sweep = {0.0, 15.0, 30.0};

array< float > aspectRatio = {1.0, 2.25, 3.5};

array< float > taperRatio = {0.3, 0.45, 0.6};

// ======================

// === Find Wing Geom ===

// ======================

string wingName = "WingGeom";

geom_ids = FindGeomsWithName( wingName );

if ( geom_ids.size() < 1 )

{

Print( "---> Did not find WingGeom " );

return;

}else{

Print("Found WingGeom");

}

  string wid = geom_ids[0];

Print(wid);

// File basename

string baseName = "LWD";

// Loop over Sweep

        for ( int i = 0 ; i < 3; i++ )

{

    SetParmVal( wid, "Sweep", "XSec_1", sweep[i]);

string SW = "_SW_"+formatFloat(i,'1',1);

                // Loop over AR

      for ( int j = 0 ; j < 3; j++ )

{

    SetParmVal( wid, "Aspect", "XSec_1", aspectRatio[j]);

string AR = "_AR_"+formatInt(j,'1',1);

// Loop over TR

      for ( int k = 0 ; k < 3; k++ )

{

    SetParmVal( wid, "Taper", "XSec_1", taperRatio[k]);

string TR = "_TR_"+formatInt(k,'1',1);

string fileName = baseName+SW+AR+TR+"_DegenGeom.m";

Print (fileName);

// Update model

    Update();

//==== Set File Name ====//

SetComputationFileName( DEGEN_GEOM_M_TYPE, fileName);

//==== Run Degen Geom ====//

ComputeDegenGeom( SET_ALL, DEGEN_GEOM_M_TYPE );

}

}

}

}

[Rob McDonald]

Mike,

I haven't tried it yet, but the first thing that comes to mind is that the wing's driver groups may not be set in a way that aspect ratio and taper ratio are available to set.

You can do this manually through the GUI, or through the API.

Rob

[Mike Henson]

Rob,

Sorry for slow reply and thanks for your suggestion.  I learned that by adding a call to the wing driver group function, the wing variables now appear to cycle correctly.

I noticed the behavior was consisent between using a vspscript and python script (attached).

Thanks,

Mike

[Rob McDonald]

Those examples look great Mike. Thanks for sharing them.

Rob

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