Function getVectorObserver

src/celengine/parseobject.cpp:1442–1461

Get the observer object of a direction vector definition. Return an empty selection if it's missing or refers to an object that doesn't exist.

// Get the observer object of a direction vector definition. Return an
// empty selection if it's missing or refers to an object that doesn't exist.
static Selection
getVectorObserver(const Universe& universe, Hash* vectorData)
{
    string obsName;
    if (!vectorData->getString("Observer", obsName))
    {
        // Omission of observer is permitted; it will default to the
        // frame center.
        return Selection();
    }

    Selection obsObject = universe.findPath(obsName, NULL, 0);
    if (obsObject.empty())
    {
        clog << "Bad two-vector frame: observer object '" << obsObject.getName() << "' of vector not found.\n";
        return Selection();
    }

    return obsObject;
}


static FrameVector*