void checkFlags() {
		if (viewer.getTestFlag1()) // turn off new solvent method
			newSolventMethod = false;
		if (viewer.getTestFlag2())
			associateNormals = false;
		if (viewer.getTestFlag4()) // turn off 2-sided if showing normals
			force2SidedTriangles = false;
		if (logMessages) {
			Logger.debug("Isosurface using testflag4: no 2-sided triangles = " + !force2SidedTriangles);
			Logger.debug("Isosurface using testflag2: no associative grouping = " + !associateNormals);
			Logger.debug("IsosurfaceRenderer using testflag3: separated triangles = " + viewer.getTestFlag3());
			Logger.debug("IsosurfaceRenderer using testflag4: show vertex normals = " + viewer.getTestFlag4());
			Logger.debug("For grid points, use: isosurface delete myiso gridpoints \"\"");
		}
	}