package jxl.common;

public class LengthConverter {
  private static double[][] factors = new double[LengthUnit.getCount()][LengthUnit.getCount()];
  
  static {
    factors[LengthUnit.POINTS.getIndex()][LengthUnit.POINTS.getIndex()] = 1.0D;
    factors[LengthUnit.METRES.getIndex()][LengthUnit.METRES.getIndex()] = 1.0D;
    factors[LengthUnit.CENTIMETRES.getIndex()][LengthUnit.CENTIMETRES.getIndex()] = 1.0D;
    factors[LengthUnit.INCHES.getIndex()][LengthUnit.INCHES.getIndex()] = 1.0D;
    factors[LengthUnit.POINTS.getIndex()][LengthUnit.METRES.getIndex()] = 3.5277777778E-4D;
    factors[LengthUnit.POINTS.getIndex()][LengthUnit.CENTIMETRES.getIndex()] = 0.035277777778D;
    factors[LengthUnit.POINTS.getIndex()][LengthUnit.INCHES.getIndex()] = 0.013888888889D;
    factors[LengthUnit.METRES.getIndex()][LengthUnit.POINTS.getIndex()] = 2877.84D;
    factors[LengthUnit.METRES.getIndex()][LengthUnit.CENTIMETRES.getIndex()] = 100.0D;
    factors[LengthUnit.METRES.getIndex()][LengthUnit.INCHES.getIndex()] = 39.37D;
    factors[LengthUnit.CENTIMETRES.getIndex()][LengthUnit.POINTS.getIndex()] = 28.34643D;
    factors[LengthUnit.CENTIMETRES.getIndex()][LengthUnit.METRES.getIndex()] = 0.01D;
    factors[LengthUnit.CENTIMETRES.getIndex()][LengthUnit.INCHES.getIndex()] = 0.3937D;
    factors[LengthUnit.INCHES.getIndex()][LengthUnit.POINTS.getIndex()] = 72.0D;
    factors[LengthUnit.INCHES.getIndex()][LengthUnit.METRES.getIndex()] = 0.0254D;
    factors[LengthUnit.INCHES.getIndex()][LengthUnit.CENTIMETRES.getIndex()] = 2.54D;
  }
  
  public static double getConversionFactor(LengthUnit from, LengthUnit to) {
    return factors[from.getIndex()][to.getIndex()];
  }
}