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* Strange backgroundcolors with showgrid and luacode
@ 2019-04-26 12:10 Otared Kavian
  2019-04-26 12:28 ` Wolfgang Schuster
  0 siblings, 1 reply; 10+ messages in thread
From: Otared Kavian @ 2019-04-26 12:10 UTC (permalink / raw)
  To: mailing list for ConTeXt users

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Dear all,

When typesetting an old list of exercises, I noticed that when \showgrid is active and a luafunction is called, there is some unwanted and strange background colors (gray and blue, or yellow and blue). Thes background colors seems to show up on an unfilled page when a lua function is used, and I could come up with the following minimal example which gives the attached PDF.

Could someone, please, tell me what I am doing wrong?

Best regards: OK

%%%% begin test-strange.tex

 \showgrid
%\setuplayout[grid=yes]

\startluacode
AdditionTest = function(nn)
	local a = {}
	local b = {}
	for i = 1,nn do
		a[i] = i 
		b[i] = nn - i 
	end
	context.midaligned("\\bfa Exercises")
	context.blank()
	context.startcolumns { n = 3 }
	context.starttabulate { "|r|c|r|c|r|" }
	for i=1,nn do
		context.NC()
			context(a[i])
		context.NC()
			context.mathematics("*")
		context.NC()
			context(b[i])
		context.NC()
			context("=")
		context.NR()
	end
	context.stoptabulate()
	context.stopcolumns()
	context.page()
end
\stopluacode

\starttext
\ctxlua{AdditionTest(12)} % the background colors, gray and blue, show up when a lua function is called

% \ctxlua{AdditionTest(120)} % the background colors, yellow and blue, show up when a lua function is called

% \input knuth % the background colors do not show up here

\stoptext
%%%% end test-strange.tex


[-- Attachment #2: test-strange.pdf --]
[-- Type: application/pdf, Size: 14371 bytes --]

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^ permalink raw reply	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2019-04-27 15:51 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-04-26 12:10 Strange backgroundcolors with showgrid and luacode Otared Kavian
2019-04-26 12:28 ` Wolfgang Schuster
2019-04-27 10:04   ` Pablo Rodriguez
2019-04-27 10:18     ` Marcus Vinicius Mesquita
2019-04-27 10:21       ` Wolfgang Schuster
2019-04-27 11:25         ` Pablo Rodriguez
2019-04-27 12:03           ` Wolfgang Schuster
2019-04-27 14:07             ` Pablo Rodriguez
2019-04-27 14:34               ` Wolfgang Schuster
2019-04-27 15:51                 ` Pablo Rodriguez

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