Re-Map a Number from One Range to Another

Published by Matt in
algorithmsmathnumbers

Create a function similar to Processing's "map" function (check the Resources tab), in which a value and its range is taken and remapped to a new range.

The function takes 5 numbers:

  • Value: value
  • Range: low1 and high1
  • Range: low2 and high2

Examples

remap(7, 2, 12, 0, 100) ➞ 50

remap(17, 5, 55, 100, 30) ➞ 83.2

remap(50, 1, 51, 0, 100) ➞ 98

Notes

  • Test input will always be numbers.
  • If the input range is 0, return 0.
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