units_converter 0.3.0

Simple and light units conversion package for all your needs.

example/main.dart

import 'package:units_converter/units_converter.dart';

void main() {
  //example 1: convert 1 meter in inches
  var length = Length(removeTrailingZeros: false); //initialize Length object, let's specify that we want to keep the trailing zeros (e.g. 1.00) for stringValue
  length.convert(LENGTH.meters, 1); //We give 1 meter as input
  var unit = length.inches; //We get all ther others units
  print('name:${unit.name}, value:${unit.value}, stringValue:${unit.stringValue}, symbol:${unit.symbol}');

  //------------------------------------------------------------------------------------------------------------------------------------------------------------

  //example 2: convert 1 degree in all ther other angle units
  var angle = Angle(significantFigures: 7, removeTrailingZeros: false); //this time let's also keep 7 significant figures
  angle.convert(ANGLE.degree, 1); //We give 1 meter as input
  var units = angle.getAll(); //We get all ther others units
  for (var unit in units) {
    //Let's print them
    print('name:${unit.name}, value:${unit.value}, stringValue:${unit.stringValue}, symbol:${unit.symbol}');
  }

  //------------------------------------------------------------------------------------------------------------------------------------------------------------

  //example 3: convert 100 (decimal) in binary and hexadecimal
  var numeralSystems = NumeralSystems(); //initialize NumeralSystems object
  numeralSystems.convert(NUMERAL_SYSTEMS.decimal, '100'); //We give 100 decimal as input
  print('Binary: ${numeralSystems.binary.stringValue}'); //We get the binary value
  print('Hexadecimal: ${numeralSystems.hexadecimal.stringValue}'); //We get the hexadecimal value
  //Warning! Numeral systems conversion is the only conversion that need the input as a string, and not as a double/int for obvous reasons

  //------------------------------------------------------------------------------------------------------------------------------------------------------------

  //example 4: given a list of coefficient converts units
  //Define the relation between a units and the others. One of the units MUST have a value of 1
  //(it will be considered the base unit from where to start the conversion)
  final Map<String, double> conversionMap = {
    'EUR': 1,
    'USD': 1.2271,
    'GBP': 0.9033,
    'JPY': 126.25,
    'CNY': 7.9315,
  };
  //Optional
  final Map<String, String> mapSymbols = {
    'EUR': '€',
    'USD': '\$',
    'GBP': '₤',
    'JPY': '¥',
    'CNY': '¥',
  };

  var customConversion = SimpleCustomConversion(conversionMap, mapSymbols: mapSymbols);
  customConversion.convert('EUR', 1);
  Unit usd = customConversion.getUnit('USD');
  print('1€ = ${usd.stringValue}${usd.symbol}');
}