SpiralShape OuterRadius

scanDocument = scanDeviceManager.CreateScanDocument(GetselectedDeviceUniqueName(), DistanceUnit.Millimeters, false);

if (scanDocument != null)
{
    VectorImage vectorImage = scanDocument.CreateVectorImage("image1", DistanceUnit.Millimeters);

    vectorImage.SetMarkSpeed(1000);
    vectorImage.SetJumpSpeed(2000);
    vectorImage.SetJumpDelay(100);
    vectorImage.SetMarkDelay(100);

    //Set Laser Delays
    vectorImage.SetLaserOnDelay(10);
    vectorImage.SetLaserOffDelay(10);

    SpiralShape spiral = new SpiralShape();
    spiral.CenterPoint = new Point3D(0, 0, 0);
    spiral.InnerRadius = 0.2f;
    
    spiral.OuterRadius = 9f;
    
    spiral.Angle = 0.3f;
    spiral.Pitch = 0.1f;
    spiral.Clockwise = false;
    spiral.InnerRotations = 1;
    spiral.OuterRotations = 1;
    spiral.Outwards = true;
    spiral.ReturnToStart = true;

    vectorImage.AddSpiral(spiral, 0.1f);

    scanDocument.Scripts.Add(new ScanningScriptChunk("defaultScript", "ScanAll()"));

    try
    {
        scanDocument.StartScanning();
    }
    catch (Exception exp)
    {
        MessageBox.Show(exp.Message);
    }
}