[ -e lines.json ] || wget "https://data.metromobilite.fr/api/lines/json?types=ligne&reseaux=SEM" -O lines.json
[ -e routes.json ] || wget "https://data.metromobilite.fr/api/routers/default/index/routes" -O routes.json

cat > /tmp/connections <<EOF
graph connections {
node [style=filled, fontsize=20, fontname="sans-serif"]
EOF

jq -rf jq/graphnodes.jq routes.json >> /tmp/connections
jq -rf jq/graphedges.jq lines.json >> /tmp/connections

echo '}' >> /tmp/connections
circo -Tpng /tmp/connections > connections.png