NEWS
pikchr 1.1.1 (2026-06-14)
Bug fixes
- Fixed a memory leak in the C interface (
pikchr_c): the SVG buffer returned by pikchr() was never freed, leaking on every diagram render.
- Guarded the C interface against a possible
NULL return from pikchr() that could crash the R session.
- Fixed the
height argument default in pikchr(), which never fell back to the SVG viewBox height and produced an empty height: CSS rule.
- Aligned the documented argument defaults of
pikchr() (width, height, fontSize, fontFamily, align) with the actual function defaults.
Other
- Regenerated the package logo with a geometrically regular hexagon (the previous SVG was horizontally squished) and fixed an invalid
<def> element (now <defs>) in the logo source.
pikchr 1.1.0 (2026-04-07)
New features
- Quarto and RMarkdown improvements: The knitr engine now supports
fig.cap (figure captions with <figure>/<figcaption> in HTML), fig.alt (accessibility alt text via aria-label), and fig.align as standard knitr options.
- Non-HTML output support: Automatic PNG conversion for all non-HTML formats including DOCX, EPUB, and Typst (previously only LaTeX/PDF was supported).
- DPI-aware PNG conversion: The
dpi chunk option (default 150) controls PNG resolution for non-HTML outputs.
- Error detection: Pikchr compilation errors now produce informative warnings with the error message, instead of silently embedding invalid markup.
- Quarto cross-referencing: Chunks with labels starting with
fig- receive an HTML id attribute for Quarto cross-reference compatibility.
Improvements
- Replaced
message(), warning(), and stop() with cli::cli_inform(), cli::cli_warn(), and cli::cli_abort() for consistent and user-friendly messaging.
- Removed
dplyr, purrr, and rlang from Imports, replaced with base R operations for a lighter dependency footprint.
- Replaced
tidyverse in Suggests with specific packages (rmarkdown).
- Updated authors list.
- Removed compiled objects (
.o, .so) from src/.
- Cleaned up commented-out code and removed duplicate engine registration.
pikchr 1.0.3 (2025-09-19)
Bug fix
- Corrected automatic detection of LaTeX output: when knitting to PDF, the SVG diagram is now converted to a PNG image using the
rsvg package, ensuring compatibility with LaTeX-based outputs.
pikchr 1.0.2
Bug fix
- Adjusted SVG attribute handling to prevent false "NAs introduced by coercion" warnings caused by unexpected coercion of non-numeric attributes.
pikchr 1.0.1 (2025-03-31)
- updated
pikchr source code to version 1.0
pikchr 1.0.0
- Added a
NEWS.md file to track changes to the package.
- Embedded Google Fonts in SVG Files: Added functionality to embed Google Fonts directly into the generated SVG files, improving the portability and visual consistency of diagrams.
- Improved Processing in RMarkdown: Enhanced integration with RMarkdown for smoother and more efficient rendering of diagrams within documents.