flutter_sinusoidals

A flutter package that helps you to visualize sine waves as you desire. All basic waves are already supported, plus customized waves & some pre-defined waves.

Features

• Creating a sine wave.
• Creating a stack of sine waves.
• Combine multiple sine waves together.
• This package use clipping to achieve wave effect so theoretically you can apply it to any widget. For example, an AppBar with a wave on the bottom.

Getting started

In the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  ...
  flutter_sinusoidals:

In your code add the following import:

import 'package:flutter_sinusoidals/flutter_sinusoidals.dart';

Built-in waves

This package comes with 4 kinds of sine waves:

Sinusoidal

A widget which helps visualize a sinusoidal.

Example of a sinusoidal:

Sinusoidal(
  model: const SinusoidalModel(
    formular: WaveFormular.standing,
    amplitude: 25,
    waves: 2.5,
    frequency: 1.5,
  ),
  child: Container(
    height: 100,
    color: Colors.blue,
  ),
),

Sinusoidals

A widget which helps visualize a stack of sinusoidals.

Example of a sinusoidals:

Sinusoidals(
  itemCount: 3,
  builder: (context, index) {
    return SinusoidalItem(
      model: SinusoidalModel(
        formular: WaveFormular.travelling,
        amplitude: _amplitude,
        waves: _waves,
        translate: 5.0 * (index + 1),
        center: 5.0 * (index + 1),
      ),
      child: Container(
        height: _height,
        color: _colors[index],
      ),
    );
  },
);

CombinedWave

A widget which helps visualize a combined wave.

A combined wave is a wave that is formed by adding multiple sinusoidals together.

Example of a combined wave:

CombinedWave(
  reverse: true,
  models: const [
    SinusoidalModel(
      amplitude: 25,
      waves: 20,
      translate: 2.5,
      frequency: 0.5,
    ),
    SinusoidalModel(
      amplitude: 25,
      waves: 15,
      translate: 7.5,
      frequency: 1.5,
    ),
  ],
  child: Container(
    height: 200,
    color: Colors.blue,
  ),
),

MagmaWave

A pre-defined wave that mimicking magma motion.

This is included in the package just to demonstrate that you can create an awesome wave by combining multiple waves together.

References

To know how sinusoidal works: sinusoidal

Try demos to observe how sinusoidal visually works, and create your version by forming formulas.

Changelog

See the Changelog to know what was changed.

Contributions

Feel free to contribute to this project.

If you find a bug or want a feature, but don't know how to fix/implement it, please fire an issue.

If you fixed a bug or implemented a feature, please send a pull request.

Special Thanks

A big thank you to KhanAcademy & Wiki for foundational knowledge about sine wave.

A big thank you to all the contributors to the project. Every PR / reported issue is greatly appreciated!