{"id":2080,"date":"2026-07-24T17:14:04","date_gmt":"2026-07-24T15:14:04","guid":{"rendered":"https:\/\/www.pcjv.de\/?page_id=2080"},"modified":"2026-07-24T17:14:12","modified_gmt":"2026-07-24T15:14:12","slug":"matplotlib-go","status":"publish","type":"page","link":"https:\/\/www.pcjv.de\/?page_id=2080","title":{"rendered":"matplotlib-go"},"content":{"rendered":"\n\n

matplotlib-go<\/a> is a plotting library for Go inspired by Matplotlib: renderer-agnostic at the core, with high-quality raster backends today and vector\/GPU backends planned.<\/p>\n\n\n\n

A long-standing itch<\/h2>\n\n\n\n

It scratches an itch I have had since the measurement era — the VST Plugin Analyser<\/a> exported stacked plots to PNG and SVG back in 2008, and I have wanted a proper, general plotting foundation ever since. The rendering layer underneath is agg_go<\/a>, my Go port of Anti-Grain Geometry.<\/p>\n\n\n\n

Examples<\/h2>\n\n\n\n

All plots below are rendered by matplotlib-go itself — and so is the live browser gallery<\/a>, the same demo catalog compiled to WebAssembly:<\/p>\n\n\n\n

\n
\"Line
Line styles, markers and legends<\/figcaption><\/figure>\n\n\n\n
\"Bar
Bar chart variants<\/figcaption><\/figure>\n\n\n\n
\"Contour
Contour styles<\/figcaption><\/figure>\n\n\n\n
\"3D
3D bars (mplot3d)<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

The toolbox around it<\/h2>\n\n\n\n

A plotting library pulls a surprising amount of machinery behind it, so matplotlib-go grew satellites: mathtext<\/a> parses and lays out Matplotlib-style MathText expressions, qhull-go<\/a> is a pure-Go Delaunay triangulator reproducing Qhull’s connectivity, and Go-Clipper2<\/a> handles polygon clipping. Its most satisfying deployment so far: rendering the charts of hercules<\/a>. More background is on the blog<\/a>.<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"

matplotlib-go is a plotting library for Go inspired by Matplotlib: renderer-agnostic at the core, with high-quality raster backends today and vector\/GPU backends planned. A long-standing itch It scratches an itch I have had since the measurement era — the VST Plugin Analyser exported stacked plots to PNG and SVG back in 2008, and I have […]<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":2075,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2080","page","type-page","status-publish","hentry"],"yoast_head":"\nmatplotlib-go - Christian's private site<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pcjv.de\/?page_id=2080\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2080\",\"url\":\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2080\",\"name\":\"matplotlib-go - Christian's private site\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pcjv.de\\\/#website\"},\"datePublished\":\"2026-07-24T15:14:04+00:00\",\"dateModified\":\"2026-07-24T15:14:12+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2080#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2080\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2080#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.pcjv.de\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Go Projects\",\"item\":\"https:\\\/\\\/www.pcjv.de\\\/?page_id=2075\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"matplotlib-go\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.pcjv.de\\\/#website\",\"url\":\"https:\\\/\\\/www.pcjv.de\\\/\",\"name\":\"Christian's private site\",\"description\":\"Private site of Christian-W. 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