Merge pull request #44 from wingkwong/develop

Release: 0.10.2

CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## 0.10.2 
+
+- Fixed Shoelace formula
+- Added Unit Conversion
+
 ## 0.10.1
 
 - Added Example README.md 

lib/src/core/GeodesicMeasurements/polygon_area_by_points.dart

@@ -25,8 +25,8 @@ class PolygonArea {
  final LatLng currentPoint = polygonPoints[i];
  final LatLng nextPoint = polygonPoints[(i + 1) % polygonPoints.length];
 
- area += (currentPoint.latitude + nextPoint.latitude) *
- (currentPoint.longitude - nextPoint.longitude);
+ area += (currentPoint.latitude * nextPoint.longitude -
+ nextPoint.latitude * currentPoint.longitude);
  }
 
  area = area.abs() / 2.0;

lib/src/util/unit_conversion.dart

@@ -0,0 +1,123 @@
+/// Unit Distance Conversion
+extension UnitConversions on num {
+ /// Metric Units
+ double get millimetersToMeters => this / 1000.0;
+
+ /// Meter To Millimeters
+ double get metersToMillimeters => this * 1000.0;
+
+ /// Centimeter to Meters
+ double get centimetersToMeters => this / 100.0;
+
+ /// Metres to Centimeters
+ double get metersToCentimeters => this * 100.0;
+
+ /// Decimeters to Meters
+ double get decimetersToMeters => this / 10.0;
+
+ /// Meters to Decimeters
+ double get metersToDecimeters => this * 10.0;
+
+ /// Kilometers to Meters
+ double get kilometersToMeters => this * 1000.0;
+
+ /// Meters to Kilometers
+ double get metersToKilometers => this / 1000.0;
+
+ /// Imperial Units
+
+ /// Inches to Centimeters
+ double get inchesToCentimeters => this * 2.54;
+
+ /// Centimeters to Inches
+ double get centimetersToInches => this / 2.54;
+
+ /// Feet to Meters
+ double get feetToMeters => this * 0.3048;
+
+ /// Meters to Feet
+ double get metersToFeet => this / 0.3048;
+
+ /// Yards to Meters
+ double get yardsToMeters => this * 0.9144;
+
+ /// Meters to Yards
+ double get metersToYards => this / 0.9144;
+
+ /// Miles to KiloMeters
+ double get milesToKilometers => this * 1.60934;
+
+ /// KiloMeters to Miles
+ double get kilometersToMiles => this / 1.60934;
+
+ /// Nautical Units
+
+ /// Nautical Miles to Kilometers
+ double get nauticalMilesToKilometers => this * 1.852;
+
+ /// Kilometers to Nautical Miles
+ double get kilometersToNauticalMiles => this / 1.852;
+
+ /// Astronomical Units
+
+ /// Astronomical to Meters
+ double get astronomicalUnitsToMeters => this * 149597870700.0;
+
+ /// Meters to Astronomical
+ double get metersToAstronomicalUnits => this / 149597870700.0;
+
+ /// Light Years
+
+ /// Light Years to Meters
+ double get lightYearsToMeters => this * 9.461e15;
+
+ /// Meters to Light Years
+ double get metersToLightYears => this / 9.461e15;
+
+ /// Parsecs
+
+ /// Parsecs To Meters
+ double get parsecsToMeters => this * 3.086e16;
+
+ /// Meters to Parsecs
+ double get metersToParsecs => this / 3.086e16;
+
+ /// Micrometers To Meters
+ double get micrometersToMeters => this / 1e6;
+
+ /// Meters To Micrometers
+ double get metersToMicrometers => this * 1e6;
+
+ /// NanoMeters To Meters
+ double get nanometersToMeters => this / 1e9;
+
+ /// Meters To Nanometers
+ double get metersToNanometers => this * 1e9;
+
+ /// Picometers To Meters
+ double get picometersToMeters => this / 1e12;
+
+ ///Meters to PicoMeters
+ double get metersToPicometers => this * 1e12;
+
+ /// Femtometers To Meters
+ double get femtometersToMeters => this / 1e15;
+
+ /// Meters To FemtoMeters
+ double get metersToFemtometers => this * 1e15;
+
+ /// Attometers To Meters
+ double get attometersToMeters => this / 1e18;
+
+ /// Meters To Attometers
+ double get metersToAttometers => this * 1e18;
+
+ /// Square Meters to Square Kilometers
+ double get squareMetersToSquareKilometers => this / 1e6;
+
+ /// Square KiloMeters to Square Meters
+ double get squareKilometersToSquareMeters => this * 1e6;
+
+ /// Meters To Square Kilometers
+ double get metersToSquareKilometers => this * this / 1e6;
+}

pubspec.yaml

@@ -1,6 +1,6 @@
 name: geodesy
 description: A Dart library for geodesic and trigonometric calculations working with points and paths
-version: 0.10.1
+version: 0.10.2
 homepage: https://github.com/wingkwong/geodesy
 
 environment:
@@ -10,5 +10,5 @@ dependencies:
  latlong2: ^0.9.0
 
 dev_dependencies:
- lints: ^2.1.1
+ lints: ^3.0.0
  test: ^1.16.8