Scatter plot sizes

[russHyde]

This sets the aspect ratio for scatter plots to be different from that for the dendrogram&heatmap images.
Previously the scatterplots would expand below the bottom of the browser window, despite having no need to be so large.

[russHyde]

After the changes:

Dendrogram aspect ratio is unaltered

But scatter plot aspect ratio is more squat

Previously:

Scatter plot aspect ratio was much more slim, and the figures took up all of the 1800px height available in the component where they were placed. This meant that a lot of the information in the scatter plot was off-page when a user viewed the image.

[russHyde]

I'm having some problems getting the figures to fit in their containers in the Imperial app @timbrock .

The figures are generated using

• ggiraph::girafe(..., width_svg = <width>, height_svg = <height>) ,
• ggiraph::renderGirafe()
• and UI-side ggiraph::girafeOutput()

The girafe() width/height values are specified "in inches. [...]. This will define the aspect ratio of the graphic as it will be used to define viewbox attribute of the SVG result."

The girafeOutput() has width and height parameters, the defaults are width = "100%", height = "500px".

According to the docs "When a girafe graphic is in a Shiny application, graphic will be resized according to the arguments width and height of the function girafeOutput. ..."

The trouble I have here is that the aspect ratios aren't guaranteed. If a dendrogram contains loads of nodes it will be tall-and-slim, if it only contains a few it will be squat. Scatter plots, which are also presented in the same place are of fixed aspect ratio.
There's another problem - with width = "100%" in the girafeOutput(), and with the guarantee about the resizing in the girafeOutput docs, we can still end up with a figure that splays over the right-hand edge of the wellPanel that they are embedded in.

[timbrock]

Might this be useful?