New plots are missing in report

[jnnr]

To report scenarios with all represented sectors, include these:

• heat dispatch
• scalar plot of capacities
• scalar plot of energy production

[jnnr]

There is a problem: When we include new plots in report/report.md and they are produced only in some scenarios, those scenarios where they are missing (reduced scenarios without heat, e.g.), will fail to build a report.

Tried to set up a pandoc lua filter - a function that checks if a resource exists which replaces the part in the template with the caption if it does not find it. But it does not work (yet?):

function Image(el)
    local path = pandoc.utils.stringify(PANDOC_STATE.resource_path) .. el.src
    local r = io.open(path, 'rb')
    if r then
        return el
    else
        return el.caption
    end
end

[henhuy]

You were almost there @jnnr ...
There was a leading "." in path. after removing, pandoc replaces missing images with caption.