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plotcli 0.3.0

New Geom Handlers

  • 11 new geom handlers bringing total support from 16 to 27 geoms: geom_step, geom_abline, geom_ribbon, geom_errorbar, geom_linerange, geom_pointrange, geom_crossbar, geom_rug, geom_label, geom_raster, geom_violin

  • Violin plots: Proper mirrored density rendering using violinwidth for accurate shape computation

Bug Fixes

  • Fixed division by zero when plotting constant data values (e.g., all y-values identical) - both root cause fix in get_min_max() and defensive guard in normalize_data() (Closes #1)

plotcli 0.2.0

Major New Features

Enhanced ggplotcli: Universal ggplot2 Converter

The ggplotcli() function has been completely rewritten to render any ggplot2 plot in the terminal:

  • 16 Supported Geoms: geom_point, geom_line, geom_path, geom_bar, geom_col, geom_histogram, geom_density, geom_smooth, geom_area, geom_segment, geom_hline, geom_vline, geom_rect, geom_text, geom_boxplot, geom_tile

  • Legend Support: Automatic legends for color and fill aesthetics

  • Faceting Support: Both facet_wrap() and facet_grid() work automatically

  • Theme Auto-Detection: Automatically respects ggplot2 themes - theme_bw() adds borders and grids, theme_classic() shows only borders, etc.

  • Multiple Canvas Types:

    • braille: Highest resolution using Unicode Braille patterns (2x4 dots per character)
    • block: Medium resolution using block elements
    • ascii: Basic ASCII characters for maximum compatibility

  • Styling Options: Configurable borders, grid lines, titles, subtitles, captions, and axis labels

Boxplot Rendering

  • New boxplot_style parameter: "ascii" (box-drawing characters) or "braille"
  • Renders whiskers, box (Q1-Q3), median line, and outliers
  • Perfect centering of whiskers and outliers

Optimized Color Mapping

  • Intelligent color assignment minimizes repetition across groups
  • 6 groups get 6 distinct terminal colors
  • 8+ groups use all available colors before repeating
  • Colors sorted by hue for visual consistency

Canvas Abstraction Layer

New R6-based canvas system providing:

  • Pixel-level drawing primitives (points, lines, rectangles, circles, polygons)
  • Automatic Braille character composition for smooth curves
  • Support for colored output via ANSI escape codes

Geom Registry

Extensible system for adding custom geom handlers, making it easy to add support for additional ggplot2 geoms.

Heatmap Support

  • New geom_tile handler for rendering heatmaps
  • Works with continuous color scales (scale_fill_gradient, scale_fill_viridis_c, etc.)
  • Supports faceted heatmaps with facet_wrap() and facet_grid()

Improvements

  • Improved Braille bit mapping for more accurate scatter and line plots
  • Better color handling for multi-group aesthetics
  • Fixed issues with quosure parsing in aesthetic mappings
  • Fixed axis label formatting (0 now displays as "0", not "0.0e+0")
  • Fixed border overlap issue - data no longer appears on/within borders
  • Fixed is_braille error with ANSI color codes

Bug Fixes (Latest)

  • Fixed geom_density not showing distinct colors when using fill aesthetic
  • Fixed heatmap legend colors not matching plot colors (legend colors now included in color mapping for consistency)
  • Fixed colors not appearing in non-interactive R sessions (Rscript) by enabling crayon colors automatically on package load
  • Fixed discrete x-axis labels showing numeric positions instead of category names

Documentation

  • Comprehensive vignette: "ggplotcli: Universal ggplot2 to Terminal Plotting"
  • Showcase examples demonstrating maximum complexity plots

plotcli 0.1.0

  • Initial CRAN release
  • Basic terminal plotting with plotcli R6 class
  • Support for scatter, line, bar, and box plots
  • Basic ggplotcli() function for ggplot2 conversion