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40 lines
1.4 KiB
Markdown
40 lines
1.4 KiB
Markdown
# ASCII Chart Visualization - Design Details
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## Objective
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Implement terminal-based charts for activity metrics (HR, power, elevation) using Unicode block characters. Charts should be responsive to terminal size and efficiently render large datasets.
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## High-Level Design
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```mermaid
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graph TD
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A[Activity Data] --> B[Downsample Data]
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B --> C[Normalize Values]
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C --> D[Render Chart]
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D --> E[Activity Detail View]
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```
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## Key Components
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1. **Data Processing**:
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- Downsampling for large datasets
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- Normalization to terminal height
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- Handling missing data points
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2. **Rendering Engine**:
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- Unicode block characters (▁▂▃▄▅▆▇█)
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- Lipgloss for styling
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- Responsive to terminal resize
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3. **Integration**:
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- Activity detail screen
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- Performance metrics display
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## Relevant Files
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- [`internal/tui/components/chart.go`](fitness-tui/internal/tui/components/chart.go) - Chart rendering logic
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- [`internal/types/downsample.go`](fitness-tui/internal/types/downsample.go) - Data downsampling
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- [`internal/tui/screens/activity_detail.go`](fitness-tui/internal/tui/screens/activity_detail.go) - Integration point
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## Exit Criteria
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1. Charts render correctly for HR, power, and elevation data
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2. Handles terminal resize events
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3. Supports datasets up to 10,000 points
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4. Unit tests covering 90% of chart logic
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5. Integrated into activity detail view |