The history of luaTEX 2006–2009 / v 0.50 - Pragma ADE

},
},
["pen"]={
{
["left_x"]=2.4548797607422,
["left_y"]=1.4173278808594,
["right_x"]=-0.70866394042969,
["right_y"]=1.2274475097656,
["x_coord"]=0,
["y_coord"]=0,
},
["type"]="elliptical",
},
["type"]="outline",
},
},
}
This means that instead of parsing PostScript output, we now can operate on a proper
datastructure and get code like the following:
function convertgraphic(result)
if result then
local figures = result.fig
if figures then
for fig in ipairs(figures) do
local llx, lly, urx, ury = unpack(fig:boundingbox())
if urx > llx then
startgraphic(llx, lly, urx, ury)
for object in ipairs(fig:objects()) do
if object.type == "..." then
...
flushgraphic(...)
...
else
...
end
end
finishgraphic()
end
end
end
184 The MetaPost Library