Added #

• Bar Chart JSON Integration - Comprehensive Plotly-like JSON support for bar charts
• Multiple Factory Constructors - Added fromJson(), fromJsonString(), and fromData() constructors
• Plotly Compatibility - Seamless conversion from Plotly JSON configurations
• Advanced JSON Configuration - Support for complex styling, animations, and layout via JSON
• Color Format Support - Multiple color formats including hex, RGB, and RGBA
• Gradient Effects via JSON - Configure gradient effects and colors through JSON
• Dynamic Data Loading - Load charts from JSON strings or maps with error handling
• Comprehensive Documentation - New dedicated README for JSON integration features

Features #

• JSON Format Support:
  • Simple format for basic charts
  • Plotly-compatible format for existing configurations
  • Advanced format with full customization options
• Factory Constructors:
  • MaterialBarChart.fromJson() - Create from JSON map
  • MaterialBarChart.fromJsonString() - Create from JSON string
  • MaterialBarChart.fromData() - Quick creation from arrays
• Styling via JSON:
  • Colors, animations, and layout configuration
  • Individual bar colors and gradient effects
  • Grid lines, padding, and interactive options
• Migration Support:
  • Easy conversion from Plotly JSON
  • Compatibility mapping and examples
  • Best practices for data transformation

Changed #

• Enhanced bar chart architecture for JSON integration
• Improved error handling and validation for JSON inputs
• Better documentation and examples for JSON usage

Added #

• Tooltip Functionality - Added interactive tooltip support to line charts
• Shared Tooltip Model - Moved tooltip model to shared space for extensibility and reusability
• Enhanced user interaction with detailed data point information

Changed #

• Line Chart Enhancement - Replaced sharp edges with smooth rounded edges for better visual appeal
• Improved line chart rendering with curved line segments
• Enhanced visual aesthetics across all line chart variants
• Tooltip Architecture - Refactored tooltip system for better code organization and maintainability

Features #

• Smooth curved line rendering instead of sharp angular connections
• Better visual flow and modern appearance
• Maintained performance while improving aesthetics
• Interactive tooltips showing data point details on hover
• Reusable tooltip components across different chart types
• Improved code maintainability through shared tooltip models

Added #

• Enhanced documentation and examples
• Improved chart performance optimizations
• Better error handling across all chart types

Changed #

• Updated dependencies to latest stable versions
• Improved code documentation and comments
• Enhanced accessibility features

Fixed #

• Minor bug fixes and stability improvements

Added #

• Comprehensive documentation updates
• Interactive documentation website at materialcharts.netlify.app
• Live editor for visual chart design

Changed #

• Enhanced pie chart center calculation and radius calculation
• Improved chart styling and customization options
• Better responsive design across all chart types

Fixed #

• Pie chart rendering issues
• Chart alignment problems
• Animation performance optimizations

Added #

• Enhanced chart customization options
• Improved animation curves and durations
• Better tooltip implementations

Changed #

• Updated chart styling system
• Improved performance across all chart types
• Enhanced error handling

Added #

• Area Chart - New chart type for quantitative data visualization over continuous intervals
• Enhanced pie chart calculations and rendering
• Improved chart responsiveness

Changed #

• Updated pie chart center calculation algorithm
• Enhanced radius calculation for better accuracy
• Improved chart scaling and positioning

Fixed #

• Pie chart rendering issues on different screen sizes
• Chart alignment problems in various layouts

Added #

• Pie Chart - Interactive pie/donut charts with customizable segments
• Support for both pie and donut chart variants
• Customizable colors, labels, and animations
• Legend support with configurable positioning

Features #

• Animated pie chart segments
• Customizable hole radius for donut charts
• Interactive hover effects
• Configurable label positioning (inside/outside)
• Connector lines for better readability

Added #

• Enhanced candlestick chart features
• Improved financial data visualization
• Better tooltip implementations

Changed #

• Updated candlestick chart styling
• Enhanced chart interactions

Added #

• CandleStick Chart - Financial data visualization for stock market analysis
• Support for OHLC (Open, High, Low, Close) data
• Interactive tooltips with price information
• Scrollable chart view for large datasets
• Customizable colors for bullish/bearish patterns

Features #

• Animated candlestick rendering
• Grid lines and axis labels
• Hover effects with detailed information
• Responsive design for various screen sizes

Added #

• MultiLine Chart - Multiple line series with interactive features
• Support for multiple data series on the same chart
• Interactive legend with series toggling
• Crosshair functionality for precise data point selection
• Zoom and pan capabilities

Features #

• Animated line rendering for each series
• Customizable colors and styles per series
• Grid lines and axis customization
• Tooltip support with series information

Added #

• Gantt Chart - Project timeline visualization with interactive features
• Support for task scheduling and dependencies
• Interactive timeline with date-based navigation
• Connection lines between related tasks
• Customizable task colors and labels

Features #

• Animated timeline rendering
• Date range filtering capabilities
• Task grouping and sorting
• Responsive design for various screen sizes

Added #

• Hollow Semi Circle Chart - Progress indicators in semi-circular format
• Customizable progress visualization
• Animated progress updates
• Configurable colors and styling

Features #

• Smooth progress animations
• Customizable stroke width and colors
• Responsive design

Added #

• Enhanced stacked bar chart features
• Improved chart interactions
• Better performance optimizations

Changed #

• Updated chart styling system
• Enhanced error handling

Added #

• Stacked Bar Chart - Versatile stacked bars for comparative data visualization
• Support for multiple segments per bar
• Interactive hover effects
• Customizable colors and styling

Features #

• Animated stacked bar rendering
• Grid lines and axis labels
• Value labels on segments
• Responsive design

Added #

• Enhanced line chart features
• Improved chart animations
• Better tooltip implementations

Changed #

• Updated line chart styling
• Enhanced chart interactions

Added #

• Line Chart - Animated line charts for trend visualization
• Smooth curve interpolation
• Interactive data point selection
• Customizable grid and axis

Features #

• Animated line rendering
• Grid lines and axis labels
• Hover effects with tooltips
• Responsive design

Added #

• Enhanced bar chart features
• Improved chart interactions
• Better performance optimizations

Changed #

• Updated chart styling system
• Enhanced error handling

Added #

• Bar Chart - Beautiful, interactive bar charts for discrete data visualization
• Animated bar rendering
• Interactive hover effects
• Customizable colors and styling

Features #

• Smooth bar animations
• Grid lines and axis labels
• Value labels on bars
• Responsive design

Added #

• Initial chart framework
• Basic chart styling system
• Animation support

Changed #

• Improved code structure
• Enhanced documentation

Added #

• Chart base classes and interfaces
• Common chart utilities
• Basic styling framework

Added #

• Initial project structure
• Basic Flutter package setup
• Development environment configuration

Added #

• Project initialization
• Basic documentation structure
• License and contribution guidelines

Added #

• Repository setup
• Basic project configuration
• Development tools integration

Added #

• Initial commit structure
• Basic project files
• Development environment setup

Added #

• Project foundation
• Basic file structure
• Development configuration

Added #

• Initial project setup
• Basic documentation
• Development tools

Added #

• Repository initialization
• Basic project structure
• Development environment

Added #

• Project foundation
• Basic configuration
• Development setup

Added #

• Initial release of Material Charts library
• Basic Flutter package structure
• Foundation for chart development
• MIT License
• Basic documentation and README

Features #

• Flutter SDK compatibility
• Material Design aesthetics foundation
• Animation support framework
• Responsive design principles
• Accessibility support structure

Version History Summary #

This changelog covers the development of Material Charts from version 0.0.1 to 0.0.27, documenting the addition of various chart types and features:

• 0.0.1-0.0.11: Foundation and basic framework
• 0.0.12: Bar Chart implementation
• 0.0.14: Line Chart implementation
• 0.0.16: Stacked Bar Chart implementation
• 0.0.18: Hollow Semi Circle Chart implementation
• 0.0.19: Gantt Chart implementation
• 0.0.20: MultiLine Chart implementation
• 0.0.21: CandleStick Chart implementation
• 0.0.23: Pie Chart implementation
• 0.0.24: Area Chart implementation
• 0.0.26-0.0.27: Documentation and performance improvements

Each version builds upon the previous, adding new chart types and enhancing existing functionality with better performance, styling options, and user experience improvements.