Area Chart
Line chart with the area below filled with color.
Structure
- Line connecting closing prices
- Filled area from line to baseline
- Often uses gradient coloring
When To Use
- Emphasizing volume/scale of movement
- Visual impact in presentations
- Long-term trend visualization
- Stacked series (multiple assets)
Visual Styles
- Solid fill: Opaque color
- Gradient: Faded toward baseline
- Transparent: Low opacity for overlays
Best Practices
- Single area chart works best
- Avoid multiple overlapping areas
- Use opacity for layered views
- Works great with baselines
API
chart.setChartType('area');
Comparison
| Feature | Line | Area |
|---|---|---|
| Visual weight | Light | Heavy |
| Trend emphasis | Direction | Magnitude |
| Overlap support | High | Low |
| Presentation impact | Low | High |