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Diagramon 3.8.14

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@westsource westsource released this 23 Oct 00:18
· 109 commits to main since this release
v3.8.14
fdf541f

本页中英双语：中文在前，英文在后。 / Bilingual release notes: Chinese first, English below.

中文

Diagramon 3.8.14 修掉两个转换缺陷：带内联类名的 Mermaid 文件现在能正常转成 DOT / D2，带 subgraph 的图转 Excalidraw 也不再退化成一张不可编辑的图片。

下载

方式 文件 说明
安装版（推荐） Diagramon_3.8.14_x64-setup.exe（约 62.93 MiB） 装完可用内置自动更新；缺 WebView2 时安装器会自动下载运行时
便携版（免安装） Diagramon-3.8.14-win-x64.zip（约 70.08 MB） 解压到任意位置，双击 diagramon.exe 即用；卸载 = 删文件夹

便携版说明：包里是 diagramon.exe + WebView2Loader.dll + ui\ + assets\，必须放在一起
（ui\ 与 assets\ 是从磁盘读的，不在 exe 里）。它不依赖额外要装的东西：不需要 Node.js、
不需要 Chrome、不需要 VC++ 运行库（exe 已静态链接 CRT），只需要 Windows 10/11 自带的 WebView2 运行时。
便携版的「检查更新」照常能发现新版，但更新走的是安装包（不会就地替换便携目录）——
要继续用便携形态，就手动下载新的 ZIP 覆盖。

本次亮点

  • 带分组的图转 Excalidraw 终于能编辑了：以前凡是图里用了 subgraph（分组框），转成 Excalidraw 后
    整张图会变成一张静态图片 —— 看着对，但每个框、每条线都拖不动。现在会还原成真正的图形元素，
    可以继续编辑。实测一份 148 行的部署图：修前 1 个图片元素，修后 181 个可编辑元素
    （59 个框 + 34 条箭头 + 88 段文字）。
  • 内联类名不再让整份文件转不出来：Mermaid 允许把样式类直接写在节点上（A[文本]:::某类），
    这种写法以前会让转 DOT / D2 直接报「第 N 行：语句尾部有没解析完的内容」而整份失败。
    现在照常识别，样式也一并迁移过去。

修复

  • :::类名 内联类名导致 Mermaid → DOT / D2 失败：解析器只认 id[标签]，不认节点后缀的
    :::类名，于是把 :::类名 当成语句尾部的多余内容整份报错。现在两种写法等价处理：
    遇到 ::: 会读出类名（支持 :::a,b 多个），与单独的 class A 类名 语句效果一致；
    类名对应的样式会迁移到目标格式（DOT 全挂上；D2 的 .class 只能挂一个，多类时取第一个并在
    转换记录里如实说明）。
  • 带 subgraph 的 Mermaid → Excalidraw 退化成位图：上游转换器用裸 id 去文档里找分组元素，
    而实际渲染出来的 id 带有一段每次都会变的序号前缀，于是必然找不到、抛错后被兜底成整张图片。
    现在转换期间会按 id 后缀再找一次，分组能正确还原；转换结束立刻撤掉这层兜底，不影响其它操作。

说明

  • 转换器依赖的 Excalidraw 与它的 Mermaid 转换器一并升到了当前版本（mermaid-to-excalidraw 2.3.0）。
  • 顺手给两个画布探针加了受限会话下的启动开关（DGM_PROBE_NO_SANDBOX=1），
    只影响开发与验收工具，不影响产品本身。

关于 Diagramon

Diagramon 是一款本地优先的多格式图表编辑器：Mermaid / Graphviz DOT / drawio / Excalidraw
都可编辑并实时预览，AI 可辅助生成、评审与识图。渲染与校验不联网也能用 ——
只有你主动使用 AI 时，相关代码或图片才会发往你选择的上游。

官网：https://www.diagramon.com

系统要求

  • Windows 10 / 11 64 位
  • WebView2 运行时（Windows 10/11 通常已预装；缺失时安装器会现场下载）
  • 不需要 Node.js、Chrome 或 VC++ 运行库 —— 画布运行时与前端资源都随包分发

安装与更新

下载 Diagramon_3.8.14_x64-setup.exe 直接安装。已装旧版的用户可在
帮助 → 检查更新 里收到本版本（更新包即本安装包，签名见 latest.json）。

本安装包尚未做 Authenticode 代码签名，Windows SmartScreen 可能给出提示。

English

Diagramon 3.8.14 fixes two conversion defects: Mermaid files that assign style classes inline now convert to DOT / D2, and diagrams with subgraph blocks no longer collapse into a single non-editable image when converted to Excalidraw.

Downloads

Type File Notes
Installer (recommended) Diagramon_3.8.14_x64-setup.exe (~62.93 MiB) Enables the built-in auto-update; if WebView2 is missing the installer downloads the runtime
Portable (no install) Diagramon-3.8.14-win-x64.zip (~70.08 MB) Unzip anywhere and run diagramon.exe; uninstall = delete the folder

About the portable build: it ships diagramon.exe + WebView2Loader.dll + ui\ + assets\, and those
must stay together (the ui\ and assets\ trees are read from disk, not embedded in the exe).
It needs nothing extra installed: no Node.js, no Chrome, no VC++ redistributable (the CRT is
statically linked) — only the system WebView2 runtime that comes with Windows 10/11.
"Check for updates" still finds new versions, but updating downloads the installer
(it does not replace the portable folder in place) — to stay portable, grab the new ZIP manually.

Highlights

  • Diagrams with groups are finally editable in Excalidraw: any diagram using subgraph blocks used to
    convert into a single static image — it looked right, but nothing could be dragged. It now comes
    through as real shapes. Measured on a 148-line deployment diagram: 1 image element before,
    181 editable elements after (59 boxes + 34 arrows + 88 text runs).
  • Inline style classes no longer break a whole file: Mermaid lets you attach a class right on a node
    (A[text]:::someClass). That used to make Mermaid → DOT / D2 fail outright with
    "trailing unparsed content on line N". It is now understood, and the styling comes across too.

Fixes

  • :::class inline class made Mermaid → DOT / D2 fail: the parser only understood id[label] and
    treated the trailing :::class as leftover text, failing the whole file. Both spellings are now
    equivalent: ::: is read (including :::a,b for several classes) and behaves exactly like a separate
    class A someClass statement. The styling is migrated (DOT gets all of them; D2's .class holds one,
    so the first is used and the conversion record says so).
  • Mermaid → Excalidraw with subgraph degraded to a bitmap: the upstream converter looked up the
    group element by its bare id, while the rendered id carries a per-render numeric prefix — so the
    lookup always missed, threw, and was caught into a whole-diagram image fallback. Conversion now retries
    the lookup by id suffix, so groups come through correctly; the fallback is removed as soon as the
    conversion finishes and does not affect anything else.

Notes

  • The Excalidraw bundle and its Mermaid converter were bumped together (mermaid-to-excalidraw 2.3.0).
  • Two canvas probes gained an opt-in flag for restricted sessions (DGM_PROBE_NO_SANDBOX=1).
    Development and acceptance tooling only — the product itself is unaffected.

About Diagramon

Diagramon is a local-first multi-format diagram editor: Mermaid, Graphviz DOT, drawio and Excalidraw
can all be edited with live preview, with AI assistance for generation, review and image recognition.
Rendering and validation work with no network at all — code or images reach a model only when you
actively use AI, and then only the endpoint you chose.

Official website: https://www.diagramon.com

Requirements

  • Windows 10 / 11 64-bit
  • WebView2 runtime (normally pre-installed on Windows 10/11; the installer downloads it if missing)
  • No Node.js, Chrome or VC++ redistributable needed — the canvas runtimes and front-end assets all
    ship inside the installer

Install and update

Download Diagramon_3.8.14_x64-setup.exe and run it. Users on an older version
will be offered this release via Help → Check for updates (the update package is this same
installer; its signature is in latest.json).

This installer is not yet Authenticode-signed, so Windows SmartScreen may show a warning.

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