dart/dlog/example/table.dart

// Copyright (c) 2015, Viktor Dakalov. All rights reserved. Use of this source code
// is governed by a BSD-style license that can be found in the LICENSE file.

library dlog.example.table;

import "dart:math" as Math;
import "package:dlog/dlog.dart" as dlog;

double rad(num deg) =>
  deg * (Math.PI / 180);

main() {

  // create new table and specify the column number
  var table = new dlog.Table(1);

  // you can add header names (optional)
  // in this case the number of columns is changed to 3
  table.columns.add("deg°");
  table.columns.addAll(["radian", "vector (x, y)"]);

  for (int angle = 0; angle < 360; angle++) {

    String x = (1 * Math.sin(angle)).toStringAsFixed(4),
           y = (1 * Math.cos(angle)).toStringAsFixed(4);

    // add row (number of cell equal columns number)
    table.data.addAll([
      angle,       // deg°
      rad(angle),  // radian
      [x, y]       // vector (x, y)
    ]);
  }

  // cut part of table
  var pi = table.clone().crop(0, 180),
      pi2 = table.clone().crop(180, 180);

  // output to console
  print(table);

  // output range 0-179
  print(pi);

  // output range 180-359
  print(pi2);

}