Chart history lenght

[Snamprogetti]

I read that this property can't be set with a property node, but there's no way even to read it?

[Ierman]

Hi there, just an idea, you may try to get the history length from the history data using the array size command.

Ierman Gert

[Snamprogetti]

That's the current length of actual data; Chart history lenght is a maximum length

[GerdW]

Hi Snamprogretti,

why do you want to read it while execution?

It's a setting only available in edit mode, so you ("the programmer") can create/change a numeric constant in the block diagram...

[Snamprogetti]

Having to set the same constant in two different places is bad programming style. If i modify the sw in 2011 i'll probably forget it.

[GerdW]

Hi Snamprogretti,

when you need a variable sized buffer then there are better things than a chart's history...

[Broken_Arrow]

I would like to be able to read this property as well. For example, to do some simple math on it for user notifications.

Personally, I don't like these types of properties that are settable only with RightMouseButton > Dialog Box. Setting the cluster size in Array to Cluster for example (of which I have an Idea in the Idea Exchange). Maybe you should post and Idea if we can't get an answer from someone that knows more than I do (which is 'bout everybody! )

[Snamprogetti]

When i need a variable sized buffer i use other things, when i need an incremental display i use a chart.