layout-base/src/util/IMath.js

Basic layout model and some utilities for Cytoscape.js layout extensions

function IMath() {
}

/**
 * This method returns the sign of the input value.
 */
IMath.sign = function (value) {
  if (value > 0)
  {
    return 1;
  }
  else if (value < 0)
  {
    return -1;
  }
  else
  {
    return 0;
  }
};

IMath.floor = function (value) {
  return value < 0 ? Math.ceil(value) : Math.floor(value);
};

IMath.ceil = function (value) {
  return value < 0 ? Math.floor(value) : Math.ceil(value);
};

module.exports = IMath;