Question

Please provide a command line parameter to generate PNG images larger than 4096 pixels tall.

Another useful extension would be to allow setting just one of the dimensions to a maximum value, e.g. "scale max 5000 height ", which would allow just the height size to exceed the default limit. Currently it is not possible to set the max size for just one dimension.

Answer 1

In the last beta: https://dl.dropboxusercontent.com/u/13064071/plantuml.jar
You can have :

@startuml
scale max 50 height
class Foo1
class Foo2
@enduml

There is an additional setting: you can define a environment variable PLANTUML_LIMIT_SIZE (which default value is 4096).
You have to define this env variable before launching PlantUML.
Something like:
set PLANTUML_LIMIT_SIZE=100
or
setenv PLANTUML_LIMIT_SIZE 100

Another way is an option in the command line:
java -DPLANTUML_LIMIT_SIZE=70 -jar c:/ant/lib/plantuml.jar -v foo1.txt

This has not been highly tested, so feedback is welcome.

Comments

This seemed to work nicely at least using the environment variable method. Also the new scal syntax seems to work based on the very limited tests I have done.

Thanks a lot for the very quick response.

Regards, Ville

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Hi!

>Another way is an option in the command line:
>java -DPLANTUML_LIMIT_SIZE=70 -jar c:/ant/lib/plantuml.jar -v foo1.txt

As far as I understood the -DPLANTUML_LIMIT_SIZE parameter MUST go before -jar parameter. So this won't work:

java -jar c:/ant/lib/plantuml.jar -DPLANTUML_LIMIT_SIZE=70 foo1.txt

This is very annoying because mostly we use plantuml from launcher which is installed by apt into /usr/bin/plantuml

The launcher contents finish by the line

$JAVA -jar /usr/share/plantuml/plantuml.jar ${@}

So if we run plantuml launcher with parameters they will automatically go AFTER -jar parameter so this won't work again:

plantuml -DPLANTUML_LIMIT_SIZE=70 foo1.txt

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This has just been fixed in last beta http://beta.plantuml.net/plantuml.jar
You can now also have :

java -jar c:/ant/lib/plantuml.jar -DPLANTUML_LIMIT_SIZE=70 foo1.txt

Tell us if it's not working for you

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This one works!
Thank you for super-fast response, as always!