oscilloscope widget package for Flutter

Oscilloscope is a graphical display similar to the trace on an oscilloscope that will display values as it scrolls across the screen. The widget uses a List as the source of the data to display and will scale the information to fit the display. Take a look at the example to see how it can be used.

Each time a value is added to the dataset another point is plotted on the trace, this trace will extends from left to right across the screen until it reaches the end. At this pint the trace will then scroll to show new values.

The display can be customised using the follwoing values:

  • backgroundColor - the default is Colors.black
  • traceColor - the default color is Colors.white
  • padding - the default is 10.0

The other settings are

  • dataSet - this is the data that is used to generate the trace
  • yAxisMin - an indicator to define the minimum value found in the dataSet (default 0.0)
  • yAxisMax - an indicator to define the maximum value found in the dataSet (default 1.0)

yAxisMin and yAxisMax are used by the widget to determine the scaling factor so all data values are displayed. These values can be altered to modify the data display scale.

Getting Started

For help getting started with Flutter, view the online documentation.

Libraries

oscilloscope

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]