Ihor Radchenko <yantar92@posteo.net> writes:

Thanks!
This looks reasonable. May you also update etc/ORG-NEWS and
https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-plantuml.html
page, documenting the changes. The Worg page source live in
https://git.sr.ht/~bzg/worg

Another possibility could be supporting :results latex header argument
and output a latex export block.

The org-mode part:

From 3c27bb94cb5a2cd66a5336dc9c69e3ca03232a91 Mon Sep 17 00:00:00 2001
From: Nan Jun Jie <nanjunjie@139.com>
Date: Wed, 23 Aug 2023 20:23:40 +0800
Subject: [PATCH] Add plantuml tikz format support

Via the use of plantuml -tlatex:nopreamble option, tikz tex can be
\input in the export latex, so that it will be compiled as tikz
picture, just like the png or svg format.
---
etc/ORG-NEWS | 4 ++++
lisp/ob-plantuml.el | 1 +
2 files changed, 5 insertions(+)

diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 4db9d258a..d38520307 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -593,6 +593,10 @@ return a matplotlib Figure object to plot. For output results, the
current figure (as returned by =pyplot.gcf()=) is cleared before
evaluation, and then plotted afterwards.

+*** =ob-plantuml.el=: Support tikz file format output
+=ob-plantuml.el= now output tikz format via `-tlatex:nopreamble`
+option. So that the output tikz file can be input into the exported
+latex correctly.
** New functions and changes in function arguments
*** =TYPES= argument in ~org-element-lineage~ can now be a symbol

diff --git a/lisp/ob-plantuml.el b/lisp/ob-plantuml.el
index 3202c6e41..b5cc9322e 100644
--- a/lisp/ob-plantuml.el
+++ b/lisp/ob-plantuml.el
@@ -143,6 +143,7 @@ This function is called by `org-babel-execute-src-block'."
("eps" '("-teps"))
("pdf" '("-tpdf"))
("tex" '("-tlatex"))
+ ("tikz" '("-tlatex:nopreamble"))
("vdx" '("-tvdx"))
("xmi" '("-txmi"))
("scxml" '("-tscxml"))
--
2.40.1

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