PlantUML Q&A - Recent questions and answers in Can't help

can't help a sequence

Wed, 29 Oct 2025 08:42:10 +0000

PlantUML Web Server

Answered: Use xml in plantuml diagram

Mon, 19 Feb 2018 18:29:47 +0000

Hi,

Not sure about what you want to do, but PlantUML does not use XML as input file...

Answered: How to change the activity shape to trapezoid?

Sun, 18 Feb 2018 19:15:50 +0000

On http://plantuml.com/activity-diagram-beta you can find documented how to use other shapes on activity diagram.

Answered: Is it possible to combine left to right direction with top to bottom direction in a package overview?

Fri, 26 Jan 2018 16:03:47 +0000

The left to right direction and top to bottom direction currently always change whole diagram.

In your edit example, removing those generates the same diagram.

Answered: how to use "as" in new syntax for activity diagram

Fri, 22 Dec 2017 06:31:50 +0000

I think you can do all what you want (without goto) with the new syntax. It is like "code" with nested if. Could you provide your previous sample like you want to write it?

Answered: separate final nodes in activity diagram

Wed, 20 Dec 2017 11:48:43 +0000

You use the old Activity syntax. With the new syntax (as is not necessary):

@startuml
start
:Activity1;
if (check parameters) then (true)
:Parse file;
else (false -> exit with error code)
stop
endif
stop
@enduml

Answered: How can I have two boxes with the same name?

Thu, 25 May 2017 14:06:43 +0000

(1) looks like an activity diagram. However, PlantUML try to guess people intention and sometimes get wrong, especially on small text.

About (2), you may use the new syntax for activity:

@startuml
start
:x;
:y;
:y;
@enduml

But I'm not sure that this is your need.

Answered: is there a way to do a if stament on a setting where if the image is going to be to large

Fri, 22 Jul 2016 13:48:57 +0000

Sorry, I am not sure to understand you. Can yon give a concrete example ?

(To simplify, you can use a PLANTUML_LIMIT_SIZE of 300 )

Thanks,

Answered: new SourceStringReader(data).generateImage(outputStream) generates correct graph but with some wrong lines

Sun, 28 Feb 2016 16:31:55 +0000

This is indeed really weird!
We have no idea about what could cause this.
However, this need to be investigate, and we have several questions:

- Once this happens, does it happen on *every* graph ? Or only to some graphs ?
- Is this only for PNG output ? Or SVG ?
- On average, how many days does it take to have such a behaviour ?

You can contact us by email if you prefer.

Regards,

Answered: sequence diagrams rendering

Fri, 08 Feb 2013 12:01:20 +0000

The standard Java 2D library has been use to generate image (http://en.wikipedia.org/wiki/Java_2D).
For SVG output, a custom class SvgGraphics has been written : it's not a very difficult job.

However, even for class diagram, GraphViz is not use to generate the image. GraphViz is only used to compute node position.
The work is done in net.sourceforge.plantuml.svek package.

But as you has noticed, documentation about this is not complete yet :-)