If you add two values, make sure you leave the two dots in between. Do the same for the other side, if needed. Click the multiplicity on one side of the association, and type the desired value(s).Setting the multiplicity directly in the diagram New attributes and operations have a default multiplicity of 1. When drawing an association, its multiplicity is automatically set to 0.1, which is not the UML default multiplicity. For attributes and operations, the multiplicity can only be set via their properties pop-up window. The multiplicity of an association can be set directly in the diagram, or via the properties pop-up window of the association. In the diagram, an exact number of objects is displayed as a single number.Įxample: the interval 2.2 is displayed as 2 in the diagram.Īt least m objects but no more than n objects.Įxample: 3.8 is at least three and at the most 8 objects. This is the default multiplicity of an association according to UML.Įxample: 0.0 is no object, 3.3 is exactly three objects. For instance, my Markdown doc is named basic.md and when I export all diagrams (there are three) as SVG, three image files are generated: You also have the option to export all diagrams within a Markdown document (command palette option "PlantUML: Export Current File Diagrams"), which will create separate image files for each diagram. You can choose PNG, SVG, or other formats.** Here's the PNG and SVG versions of the diagram shown in the Preview pane, above: PNG SVG Choose "PlantUML: Export Current Diagram".open the command palette (Ctrl-Shift-P on my PC) or right click and select Command Palette.place your cursor within the desired PlantUML text,.
#Use case diagram using staruml code
Unlike plantuml, it is not a VS Code extension, but an executable. It works in conjunction with the plantuml extension installed earlier.
#Use case diagram using staruml install
In order to export individual diagrams, I need to install GraphViz, which is "open source graph visualization software". That's great, but what if you want to export a diagram from within the Markdown? For that you'll need a little help from your friends. What's more, the diagram in the Preview pane is kept in sync with the UML as described the Markdown document. 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.ĪDVERTISEMENT Adding PlantUML to your Markdown 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. Drawing 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.
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