

I can include as many plantuml segments as I want in my Markdown, and the diagrams can be of any type supported by backgroundColor #EEEBDCĬustomer -> "login()" : username & passwordĬustomer -> "placeOrder()" : session token, order infoĭeactivate now when I open the VS Code's Preview pane: Markdown document on left, Preview on right Here I will embed PlantUML markup to generate a sequence diagram. With the extension installed, you can now insert UML diagrams using PlantUML language. You'll also need to have some version of Java installed, with JAVA_HOME environment variable set or an executable path with the java binary location in it. Then clicking install, or simply by running the following from a terminal pane (Ctrl+' gets you one): That extension is called plantuml, and you can install it either by searching for it in the extensions panel (click on the extension icon): With a single extension, you can visualize UML diagrams in VS Code's preview panel. VS Code) has become a popular editor for various computer languages, including Markdown.

PlantUMLĭrawing UML diagrams is tedious, but what if you could instead describe a UML diagram textually, in a way that you could include it directly in a Markdown-based document, see both diagrams and formatted text in a preview as your are editing it, and in addition can export the Markdown as HTML or PDF? Your text and diagrams are seamlessly integrated in one file. Though perhaps it has not lived up to the larger ambitions of its designers, it still offers a consistent way to visualize various facets of software design. UML is the acronym for Universal Modeling Language, an effort to standardize an iconography for software design that first appeared 25 years ago. If you're using a traditional drawing tool, that can be tedious. Do you hate drawing diagrams for technical documentation? Seems like no sooner you finish a draft, new refinements come along, forcing you to change not only the text but the picture as well.
