@Override
    @SuppressWarnings("unchecked")
    public void read(JmeImporter im) throws IOException {
        super.read(im);
        InputCapsule ic = im.getCapsule(this);

        // isReady and collisionListeners not read
        ragdollMass = ic.readFloat("ragdollMass", 1f);
        centerLocation
                = (Vector3f) ic.readSavable("centerLocation", new Vector3f());
        centerVelocity
                = (Vector3f) ic.readSavable("centerVelocity", new Vector3f());
    }
De-serialize this control, for example when loading from a J3O file.

@param im the importer (not null)
@throws IOException from the importer
jme3-jbullet/src/main/java/com/jme3/bullet/animation/DynamicAnimControl.java