public void saveState(SaveState saveState) {
		if (isInvalid()) {
			return;
		}

		saveState.putDouble(VIEW_ZOOM, zoom);
		saveState.putInt(LAYOUT_TRANSLATE_X, layoutTranslateCoordinates.x);
		saveState.putInt(LAYOUT_TRANSLATE_Y, layoutTranslateCoordinates.y);
	}
The offset of the transform from the world origin (which at the time of writing is
the (0,0) at the upper left-hand corner of the GUI.  This is for the view transformer, 
which also potentially has a scale applied to the transform.
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/GraphPerspectiveInfo.java