Is there a container type in Haskell Diagrams?

Question

I am trying to map out some data in Diagrams. I am completely new to Diagrams, but I essentially want to have a rectangle, that grows when I put other diagrams atop of it. I have scoured the docs, but havn't found anything.

Does there exist such a shape, or a way to know how much to scaleY?

Answer 1

If all you need is a rectangle surrounding some diagram(s), boundingRect might be enough. It could look like this (note the pad is entirely optional):

-- Arbitrary example, taken from the manual.
contents :: Diagram B
contents = c ||| hrule 1 ||| c
    where
    c = circle 1 <> vrule 2

-- Adding a bounding rectangle around it, with a little padding.
example :: Diagram B
example = contents <> bounds
    where
    bounds = boundingRect (contents # pad 1.1)
        # lc red