How do I visualize full Use Case diagrams (actors + connections) in SysIDE VS Code?

SysML v2 Discussion
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1

Hi all — I’m trying to visualize a Use Case diagram in the Sys IDE-Modeler (VS Code extension) and I’m not getting actor → use case connections or a system boundary the way I expect.

Source: I’m using the SysML v2 training example here:
https://github.com/Systems-Modeling/SysML-v2-Release/tree/master/sysml/src/training/35.%20Use%20Cases

What I did (repro):

  1. Open the repo in VS Code.

  2. Navigate to the 35. Use Cases example.

  3. Run “Sys IDE- Visualize Current File” on the .sysml file.

What I see: a figure with two use cases (e.g., provide transportation, add fuel) and a «part def» Fuel Station block, but no connectors between the system, the use cases, and the actors (vehicle, fueler, fuel station). (screenshot attached)

What I expected: a standard Use Case diagram showing:

  • actors (vehicle, fueler, fuel station),

  • the subject/system boundary,

  • associations between actors and use cases (and any include/extend relations if present).

Questions

  1. Does Sys IDE-’s visualizer support rendering actor ↔ use case associations and the subject boundary out of the box for this example?

  2. If yes, what am I missing? (specific command, setting, or required annotations/viewpoints?)

  3. If not, is there an example or recommended pattern (e.g., a particular viewpoint or presentation annotation) to produce a classic Use Case view

Environment

  • VS Code: (version 1.104)/ Windows 11

  • Sys IDE-modeler extension: 0.7.2 (from marketplace)

Thanks in advance! If it helps, I can share the exact file I’m visualizing and the output from the visualizer.

2

Hi Susmitha,

Great question. You’re not missing anything—this is a current limitation of the visualizer, which is still under active development.

While the model is correct, the tool doesn’t yet render the complete Use Case diagram view with all its connections. Support for this is planned for a future release.

Thanks for the valuable feedback!

Best regards,
Simas

1 Like
3

Hi,

Is there any update on this from Tom Sawyer?

4

Hi Zahir,

Use Case diagrams will be available in the upcoming Syside Modeler v0.8.5 release.

Best regards,
Simas

5

Hi @Susmitha_Suresh and @Zahir, Use Case diagram support has been added in Syside Modeler v0.8.5.

See example from SysML-v2-Release training materials below:

image
image3423×2004 406 KB

1 Like
6

Hi,
when I try to render this example i get following output.
Can i create a view tah will allways generate this nicly align diagram you showed above ?

image
image1260×810 79.5 KB

7

You can define custom views, which allow you to control which elements you show (expose), define filters (filter), set how many levels to show (depth), and what rendering style to use (render). For more information, see Targeted Visualization Modes.

Here’s an example:

package 'Use Case Usage Example' {

	...

	part def useCaseViews {
		view allUseCaseViews {
			expose 'Use Case Usage Example';
            // render Views::asTreeDiagram;
		}
		view provideTransportationView {
			expose 'Use Case Usage Example'::'provide transportation';
            render Views::asTreeDiagram;
		}
        view driveVehicleView {
            expose 'Use Case Usage Example'::'provide transportation'::'drive vehicle';
            render Views::asTreeDiagram;
        }
        view enterVehicleView {
            expose 'Use Case Usage Example'::'provide transportation'::'enter vehicle';
            render Views::asTreeDiagram;
        }
	}
}

You can visualize the views by right-clicking on a view in text and selecting Visualize view (labs):

image
image1046×534 52.9 KB