Tiny charts 🤏 - Sparkline charts for fast data visualization on Flutter apps

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Last update: Dec 10, 2022

Related tags

Charts tiny_charts

Overview

_{Spreadsheet with superpowers

✨
!}

Tiny charts 🤏

Sparkline charts for fast data visualization on Flutter apps

Installation

flutter pub add tiny_charts

Usage

📈 Line charts

From offsets

void build(BuildContext context) {
  return TinyLineChart(
    width: 100,
    height: 28,
    dataPoints: const [
      Offset(0, 2),
      Offset(1, 11),
      Offset(2, 17),
      Offset(2.5, 0),
      Offset(3, 10),
      Offset(4, 24),
    ],
  );
}

From vectors

Using vector_math's Vector2 class.

import 'package:vector_math/vector_math.dart';

void build(BuildContext context) {
  return TinyLineChart.fromDataVectors(
    width: 100,
    height: 28,
    dataPoints: [
      Vector2(0, 14),
      Vector2(1, 13.2),
      Vector2(2, 2),
      Vector2(3, 13),
      Vector2(4, 10),
      Vector2(5, 4),
    ],
  );
}

With options

Passing custom options

void build(BuildContext context) {
  return TinyLineChart(
    width: 100,
    height: 28,
    dataPoints: const [
      Offset(0, 2),
      Offset(1, 11),
      Offset(2, 17),
      Offset(2.5, 0),
      Offset(3, 10),
      Offset(4, 24),
    ],
    options: const TinyLineChartOptions(
      color: Color(0xFFC93B8C),
      lineWidth: 3,
      yMinLimit: -2,
      yMaxLimit: 27,
    ),
  );
}

Bar charts

Single

void build(BuildContext context) {
  return TinyBarChart.single(
    value: 68.12,
    max: 100,
    color: const Color(0xFF236536),
    width: 120,
    height: 28,
  );
}

Stacked

void build(BuildContext context) {
  return TinyBarChart.stacked(
    data: const <double>[24, 12, 4],
    width: 120,
    height: 28,
  );
}

From data vectors

void build(BuildContext context) {
  return TinyBarChart.stackedFromDataVectors(
    dataPoints: <Vector2>[
      Vector2(1, 20),
      Vector2(2, 12),
      Vector2(0, 12),
      Vector2(4, 24),
    ],
  );
}

With options

void build(BuildContext context) {
  return TinyBarChart.stacked(
    data: const <double>[24, 12, 4],
    options: const TinyBarChartOptions(
      colors: [
        Color(0xFFFF0000),
        Color(0xBEEE0260),
        Color(0x97FF74AD),
      ],
    ),
    width: 120,
    height: 28,
  );
}

📊 Column charts

From values

void build(BuildContext context) {
  return TinyColumnChart(
    data: const [20, 22, 14, 12, 19, 28, 1, 11],
    width: 120,
    height: 28,
  );
}

From vectors

void build(BuildContext context) {
  return TinyColumnChart.fromDataVectors(
    dataPoints: [
      Vector2(0, 18),
      Vector2(6, 22),
      Vector2(2, 12),
      Vector2(3, 14),
      Vector2(5, 34),
      Vector2(4, 5),
      Vector2(1, 24),
    ],
    width: 120,
    height: 28,
  );
}

With negative values

void build(BuildContext context) {
  return TinyColumnChart(
    data: const [20, -22, 14, -12, -19, 28, 1, 11],
    width: 120,
    height: 28,
  );
}

With options

With axis

void build(BuildContext context) {
  return TinyColumnChart(
    data: const [20, -22, 14, -12, -19, 28, 5, 11],
    width: 120,
    height: 28,
    options: const TinyColumnChartOptions(
      positiveColor: Color(0xFF27A083),
      negativeColor: Color(0xFFE92F3C),
      showAxis: true,
    ),
  );
}

Custom colors

void build(BuildContext context) {
  return TinyColumnChart(
    data: const [18, 22, 28, -12, 32, 12, 9, 14, -34, -25, 24],
    width: 120,
    height: 28,
    options: const TinyColumnChartOptions(
      positiveColor: Color(0xFF0023C6),
      negativeColor: Color(0xFFBA2500),
      showAxis: true,
      axisColor: Color(0xFF00FF00),
      lowestColor: Color(0xFFFF4A1A),
      highestColor: Color(0xFF3083FF),
      firstColor: Color(0xFFFFE500),
      lastColor: Color(0xFF8000FF),
    ),
  );
}

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