Method showOverlay

ij/src/main/java/ij/macro/Functions.java:7375–7384

(ImagePlus imp)

	}

	double showOverlay(ImagePlus imp) {
		interp.getParens();
		addDrawingToOverlay(imp);
		if (offscreenOverlay!=null) {
			imp.setOverlay(offscreenOverlay);
			offscreenOverlay = null;
		} else
			imp.setHideOverlay(false);
		return Double.NaN;
	}

	double hideOverlay(ImagePlus imp) {
		interp.getParens();