On 7/23/2021 11:07 AM, Jorge Manuel wrote:
Dear Sirs
If I tried:
\starttext
\startluacode
sample = {10,30,30,40}
function MP.GetP()
mp.print(sample)
end
\stopluacode
\startMPcode
draw lmt_chart_bar [
width = 8cm,
height = 10mm,
samples = {lua.MP.GetP()} ,
trace = true,
maximum = 100,
linewidth = 1mm,
showlabels = false,
originsize = 0,
labelanchor = "lft",
labelcolor = "black"
labelstyle = "bfxx"
legendstyle = "tfxx",
labelstrut = "yes",
] ;
\stopMPcode
\stoptext
This works.
But with an extra element in the sample table:
\starttext
\startluacode
sample = {10,30,30,40,50}
function MP.GetP()
mp.print(sample)
end
\stopluacode
\startMPcode
draw lmt_chart_bar [
width = 8cm,
height = 10mm,
samples = {lua.MP.GetP()} ,
trace = true,
maximum = 100,
linewidth = 1mm,
showlabels = false,
originsize = 0,
labelanchor = "lft",
labelcolor = "black"
labelstyle = "bfxx"
legendstyle = "tfxx",
labelstrut = "yes",
] ;
\stopMPcode
\stoptext
Don't works anymore. Why?
(watch out: samples is global in your code)
your lua.MP.GetP() becomes some mp quantity and 4 entries becomes a
cmykcolor and you're just lucky that that works (reverse casting makes
it a table) and there is no 5 element quantity so, you end up in
scantokens not being able to understand it
I'll think of a way to pass records (new submechanism) at some point but
for now i added this:
\startluacode
document.samples = {
{ 10, 30, 30, 40, 50 }
}
\stopluacode
\startMPcode
draw lmt_chart_bar [
width = 8cm,
height = 10mm,
trace = true,
maximum = 100,
linewidth = 1mm,
showlabels = false,
sampleset = "document.samples",
originsize = 0,
labelanchor = "lft",
labelcolor = "black"
labelstyle = "bfxx"
legendstyle = "tfxx",
labelstrut = "yes",
] ;
\stopMPcode
with the spec being some lua, so this will also work:
sampleset = "table.load('foo.lua')",
asuming foo.lua has this:
return {
{ 10, 30, 30, 40, 50 }
}
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Hans Hagen | PRAGMA ADE
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