hamiltons.js

export const hamilton = 1;
export const nanometer = 9 * hamilton;
export const micrometer = 1E3 * nanometer;
export const millimeter = 1E3 * micrometer;
export const centimeter = 10 * millimeter;
export const decimeter = 10 * centimeter;
export const meter = 1E3 * millimeter;

// Customary units based on the International Yard
export const yard = 914400 * micrometer;
export const mile = 1760 * yard;
export const foot = yard / 3;
export const inch = foot / 12;
export const pica = inch / 6;
export const point = pica / 12;

// Hamilton A, B, and C series base units
const [A10x, A10y] = [ 236502116, 334464501 ];
const [B10x, B10y] = [ 281249999, 397747564 ];
const [C10x, C10y] = [ 257907387, 364736124 ];

export const paper = {
  // American loose paper
  "Ledger": [17 * inch, 11 * inch],
  "Tabloid": [11 * inch, 17 * inch],
  "Legal": [8 * inch + inch / 2, 14 * inch],
  "Letter": [8 * inch + inch / 2, 11 * inch],
  "Half Letter": [5 * inch + inch / 2, 8 * inch + inch / 2],

  // Canada P series
  "P1": [560 * millimeter, 860 * millimeter],
  "P2": [430 * millimeter, 560 * millimeter],
  "P3": [280 * millimeter, 430 * millimeter],
  "P4": [215 * millimeter, 280 * millimeter],
  "P5": [140 * millimeter, 215 * millimeter],
  "P6": [107 * millimeter, 140 * millimeter],

  // DIN 476 Overformats
  "4A0": [A10x * 64, A10y * 64],
  "2A0": [A10y * 32, A10x * 64],

  // A series
  "A0":  [A10x * 32, A10y * 32],
  "A1":  [A10y * 16, A10x * 32],
  "A2":  [A10x * 16, A10y * 16],
  "A3":  [A10y *  8, A10x * 16],
  "A4":  [A10x *  8, A10y *  8],
  "A5":  [A10y *  4, A10x *  8],
  "A6":  [A10x *  4, A10y *  4],
  "A7":  [A10y *  2, A10x *  4],
  "A8":  [A10x *  2, A10y *  2],
  "A9":  [A10y     , A10x *  2],
  "A10": [A10x     , A10y],

  // B series
  "B0":  [B10x * 32, B10y * 32],
  "B1":  [B10y * 16, B10x * 32],
  "B2":  [B10x * 16, B10y * 16],
  "B3":  [B10y *  8, B10x * 16],
  "B4":  [B10x *  8, B10y *  8],
  "B5":  [B10y *  4, B10x *  8],
  "B6":  [B10x *  4, B10y *  4],
  "B7":  [B10y *  2, B10x *  4],
  "B8":  [B10x *  2, B10y *  2],
  "B9":  [B10y     , B10x *  2],
  "B10": [B10x     , B10y],

  // C series
  "C0":  [C10x * 32, C10y * 32],
  "C1":  [C10y * 16, C10x * 32],
  "C2":  [C10x * 16, C10y * 16],
  "C3":  [C10y *  8, C10x * 16],
  "C4":  [C10x *  8, C10y *  8],
  "C5":  [C10y *  4, C10x *  8],
  "C6":  [C10x *  4, C10y *  4],
  "C7":  [C10y *  2, C10x *  4],
  "C8":  [C10x *  2, C10y *  2],
  "C9":  [C10y     , C10x *  2],
  "C10": [C10x     , C10y],
}