Hi everyone, I’ve made great progress creating globes for my diagrams using the data in the mp-geo package and some ideas from Hans. I have a couple questions about moving information from Lua to MetaPost. Below is a MWE for illustration. I have two related questions: 1) Is there a way for MetaPost to grab information from a Lua table? Currently the MetaPost code calls a Lua function which has a single line returning the information from the table. Is this necessary, or is these something in MetaPost that can get a path or color from a Lua table? 2) While I’m having good luck with paths, colors are causing trouble. In the data set the color information is in strings with French names of the color, like “rouge.” If I hand this string to MetaPost, MetaPost doesn’t expand it into a color. It does work if it is a native color, like “red,” but not if it is a defined color and not if the color is in a Lua variable. Any suggestions? Thanks! Gavin The code below produces four pie shape wedges to show the different results of handling the color. They should all be red, but the last two are black. \startMPinclusions color rouge; % To avoid changing the data files, I need to define colors in French. rouge=(1,0,0); % For this MWE, I only define rouge. color mycolor; % Defining mycolor in MetaPost works great, as shown in the first shape. mycolor = rouge; \stopMPinclusions \startluacode myluapath = {{0,0}, {1,0,0,0,1,0.25}, {0.8,0.6,0.95,0.4}, cycle = true} myluacolor = “red” --% Data files are read by Lua, so the myluacolor will be a string (in French, but native colors don't work either). function mp.getpath() --% Is there a way for the MetaPost code to grab the path directly from the table? mp.inject.path(myluapath) end function mp.getred() --% Returning a string work for native colors. mp.inject.string("red") end function mp.getrouge() --% Returning a string does not work for defined mp.inject.string("rouge") end function mp.getcolor() --% Putting the string in a variable does not work. mp.inject.string(mycolor) end \stopluacode \starttext \startMPpage fill lua.mp.getpath() scaled 2.5cm withcolor mycolor; % MetaPost color definition works great. fill lua.mp.getpath() scaled 2.5cm shifted (0, -2cm) withcolor lua.mp.getred(); % Returning a string work for native colors. fill lua.mp.getpath() scaled 2.5cm shifted (0, -4cm) withcolor lua.mp.getrouge(); % Returning a string does not work for defined colors. fill lua.mp.getpath() scaled 2.5cm shifted (0, -6cm) withcolor lua.mp.getcolor(); % Putting the string in a variable does not work. \stopMPpage \stoptext