@quartic/bokehjs/build/js/tree_ts/core/util/projections.ts

Interactive, novel data visualization

import {
  proj4,
  mercator
} from "./proj4";

export var project_xy = function(x, y) {
  var i, j, merc_x, merc_x_s, merc_y, merc_y_s, ref, ref1;
  merc_x_s = [];
  merc_y_s = [];
  for (i = j = 0, ref = x.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
    ref1 = proj4(mercator, [x[i], y[i]]), merc_x = ref1[0], merc_y = ref1[1];
    merc_x_s[i] = merc_x;
    merc_y_s[i] = merc_y;
  }
  return [merc_x_s, merc_y_s];
};

export var project_xsys = function(xs, ys) {
  var i, j, merc_x_s, merc_xs_s, merc_y_s, merc_ys_s, ref, ref1;
  merc_xs_s = [];
  merc_ys_s = [];
  for (i = j = 0, ref = xs.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
    ref1 = project_xy(xs[i], ys[i]), merc_x_s = ref1[0], merc_y_s = ref1[1];
    merc_xs_s[i] = merc_x_s;
    merc_ys_s[i] = merc_y_s;
  }
  return [merc_xs_s, merc_ys_s];
};