highway shields

[ajashton]

No description provided.

[ajashton]

Basic shields added in aeb2b38 ..still needs work:

• differentiation between motorway and trunk shields
• documentation on how to modify/export the shields SVG in Inkscape
• primary & secondary shields?

[jeffschuler]

I was trying to change all the shields.

Figured out how to do it with Inkscape:
(after editing them in the SVG...)

#!/bin/bash

for i in {'motorway','primary','secondary','trunk'}; do
    for j in {1..8}; do
        inkscape --export-id=shield-$i-$j --export-png=shield-$i-$j.png shields.svg
    done
done

to spit out new .pngs.