transparency support with png

Question

That would be great :)

Thanks

Answer 1

Hello,

Could you be more specific about your need (by giving an example) ?

Today, the only place where you can use transparent color is in the background. For example:

@startuml
skinparam backgroundcolor transparent
State s1 #red|yellow
note right #black-yellow
  this is a note
end note
@enduml

 

Comments

Sorry for the late answer..
If I export a class diagram with transparent backgroundcolor it only works with svg, not png.
With use case diagrams it turns rectangles background black.

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Hello,
I guess that you are talking about the Eclipse plugin, aren't you ?

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No, i'm using the Idea plugin, but i also tried with the command line, without success.

Note that I can get transparent background but only with SVG format.

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Try by yourself:

@startuml

skinparam backgroundcolor transparent

A <|-- B
A <|-- C

B <|-- D

@enduml

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Oh and by the way:

 plantuml -version
PlantUML version 7948 (Wed Jan 02 18:43:23 CET 2013)
OpenJDK Runtime Environment
OpenJDK 64-Bit Server VM
1.7.0_09-b30
Linux

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I tried your example with State:
plantuml state-ex.puml
And it generates a PNG file without transparent background.

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Sorry, you are right, this is only working in sequence diagram:
@startuml
skinparam backgroundcolor transparent
a -> b : hello
@enduml
This will be corrected in next version.

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Ok, thank you

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This is corrected in version 7950

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Great! Plantuml rocks :)