float solventWorkingRadius(Atom atom) {
		float r = (solventAtomRadiusAbsolute > 0 ? solventAtomRadiusAbsolute
				: atom == null ? JmolConstants.vanderwaalsMars[1] / 1000f : useIonic ? atom.getBondingRadiusFloat()
						: atom.getVanderwaalsRadiusFloat());
		r *= solventAtomRadiusFactor;
		r += solventExtendedAtomRadius + solventAtomRadiusOffset;
		if (r < 0.1)
			r = 0.1f;
		return r;
	}