/** Nominal metres for display only; never a source or interpolated diameter. */
export const DEFAULT_PIPE_DIAMETER_M = Object.freeze({ GAS:0.16, WATER_SUPPLY:0.4, SEWAGE:0.8, RAINWATER:0.8, DRAINAGE_UNKNOWN:0.8 })
export function displayDiameterFor(colorKey) {
    return DEFAULT_PIPE_DIAMETER_M[colorKey] ?? null
}