/// <summary>
/// Input should be the persistent data for this single pivot.<para/>
/// Should consist of two quaternions, using comma between members, and dash for separation between quats -- e.g. x,y,z,w-x,y,z,w<para/>
/// If persitent data string is empty/null, default orientation is initialized to the current local rotation of the pivot. This new default
/// will be captured and saved to persistence the next time the part is saved.
/// </summary>
/// <param name="persistentData"></param>
public void initializeRotation(string persistentData)
{
if (!string.IsNullOrEmpty(persistentData))
{
string[] splitData = persistentData.Split('|');
float[] def = SSTUUtils.parseFloatArray(splitData[0]);
float[] cur = SSTUUtils.parseFloatArray(splitData[1]);
defaultOrientation = new Quaternion(def[0], def[1], def[2], def[3]);
pivot.localRotation = new Quaternion(cur[0], cur[1], cur[2], cur[3]);
}
else
{
defaultOrientation = pivot.localRotation;
}
}