renderer/base_chart_painter
        library 
 
      
    
    
    
      Classes
      
          - 
  BaseChartPainter 
- 
  
- 
  Canvas 
- 
  An interface for recording graphical operations.
- 
  Color 
- 
  An immutable color value in ARGB format.
- 
  CustomPainter 
- 
  The interface used by CustomPaint (in the widgets library) and
RenderCustomPaint (in the rendering library).
- 
  Rect 
- 
  An immutable, 2D, axis-aligned, floating-point rectangle whose coordinates
are relative to a given origin.
- 
  Size 
- 
  Holds a 2D floating-point size.
- 
  TextStyle 
- 
  An immutable style describing how to format and paint text.
 
    
      Constants
      
          - 
    required
  → const Required
  
- 
  Used to annotate a named parameter pin a method or functionf.
Indicates that every invocation offmust include an argument
corresponding top, despite the fact thatpwould otherwise be an
optional parameter.