This library supports both, the "Haversine" and the "Vincenty" algorithm.
"Haversine" is a bit faster but "Vincenty" is far more accurate!
Catmull-Rom algorithm is used for smoothing out the path.
final Distance distance = new Distance(); // km = 423 final int km = distance.as(LengthUnit.Kilometer, new LatLng(52.518611,13.408056),new LatLng(51.519475,7.46694444)); // meter = 422591.551 final int meter = distance( new LatLng(52.518611,13.408056), new LatLng(51.519475,7.46694444) );
final Distance distance = const Distance(); final num distanceInMeter = (EARTH_RADIUS * math.PI / 4).round(); final p1 = new LatLng(0.0, 0.0); final p2 = distance.offset(p1, distanceInMeter, 180); // LatLng(latitude:-45.219848, longitude:0.0) print(p2.round()); // 45° 13' 11.45" S, 0° 0' 0.00" O print(p2.toSexagesimal());
// zigzag is a list of coordinates final Path path = new Path.from(zigzag); // Result is below final Path steps = path.equalize(8,smoothPath: true);
Please file feature requests and bugs at the issue tracker.
Copyright 2015 Michael Mitterer (email@example.com), IT-Consulting and Development Limited, Austrian Branch Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
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Lightweight library for common latitude and longitude calculation
This CHANGELOG.md was generated with Changelog for Dart
Add this to your package's pubspec.yaml file:
dependencies: latlong: "^0.4.5"
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$ flutter packages get
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Now in your Dart code, you can use:
|0.4.5||Dec 13, 2017|
|0.4.3||Dec 13, 2017|
|0.4.1||Dec 13, 2017|
|0.3.4||Nov 16, 2016|
|0.3.3||Oct 13, 2016|
|0.3.2||Feb 4, 2016|
|0.3.1||Feb 3, 2016|
|0.3.0||Jan 29, 2016|
|0.2.1||Jan 26, 2016|
|0.2.0||Jan 26, 2016|
We analyzed this package on Apr 23, 2018, and provided a score, details, and suggestions below. Analysis was completed with status completed using:
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Detected platforms: Flutter, web, other
No platform restriction found in primary library
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Fix analysis and formatting issues.
Analysis or formatting checks reported 19 hints.
Similar analysis of the following files failed:
Package is pre-v1 release.
While there is nothing inherently wrong with versions of
0.*.*, it usually means that the author is still experimenting with the general direction API.
Maintain an example.
Create a short demo in the
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example.dartor you could also use
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|Dart SDK||>=1.8.0 <2.0.0|