[Lazarus] PlotFunction patch declined?

[Werner Pamler]

Am 07.11.2017 um 11:53 schrieb Michael Van Canneyt via Lazarus:
> Are you going to make sure TAChart can do the plot during design-time ?

I am working at it, there are issues with registration of the new 
TExpressionSeries from a separate package (it's not in trunk, yet).

But anyway: why is the designtime argument so important to you? 
ExpressionPanel cannot plot a function as simple as "sin(x)" at 
designtime because bcMath is not added to the Builtins of the parser. 
And if it were, other similarly simple functions such as "tan(x)" would 
not work because they are not registered. So, the designtime argument 
has only very limited weight. But of course, there is always the 
possibility that I am missing some features of the fpexprparser.