From: "Procházka Lukáš Ing. - Pontex s. r. o." <LPr@pontex.cz>
To: ConTeXt <ntg-context@ntg.nl>
Subject: Layers by native code vs. by Lua
Date: Tue, 25 Jan 2011 13:53:15 +0100 [thread overview]
Message-ID: <op.vpu7e1mitpjj8f@lpr> (raw)
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Hello,
a weird thing happens when setting up layers - I'm getting different results depending on whether setup is performed by native Ctx code or by Lua:
---
\setuppapersize[A4,landscape][A4,landscape]
\setuplayout[page]
\definelayer[T][x=10mm,y=0mm]
\startuseMPgraphic{VerticalRule}
draw (0,0)--(0,PaperHeight) withcolor red;
\stopuseMPgraphic
\startsetups S1
\setlayer[T]{\useMPgraphic{VerticalRule}}
\stopsetups
\startluasetups S2
\startluacode
context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
\stopluacode
\stopluasetups
\starttext
\setupbackgrounds[page][setups=S1,background={T}]
\page[empty]
\setupbackgrounds[page][setups=S2,background={T}]
\page[empty]
\stoptext
---
Both setups (S1 and S2) should do the same - to draw a vertical line to the full height.
The first case (S1) is OK - the line starts 10 mm from the top left corner of the page.
The second case (S2) is somehow shifted - the line starts cca 13 mm from the top left corner of the page.
What is the reason? And how to make Lua way give the same result?
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
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\setuppapersize[A4,landscape][A4,landscape]
\setuplayout[page]
\definelayer[T][x=10mm,y=0mm]
\startuseMPgraphic{VerticalRule}
draw (0,0)--(0,PaperHeight) withcolor red;
\stopuseMPgraphic
\startsetups S1
\setlayer[T]{\useMPgraphic{VerticalRule}}
\stopsetups
\startluasetups S2
\startluacode
context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
\stopluacode
\stopluasetups
\starttext
\setupbackgrounds[page][setups=S1,background={T}]
\page[empty]
\setupbackgrounds[page][setups=S2,background={T}]
\page[empty]
\stoptext
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next reply other threads:[~2011-01-25 12:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 12:53 Procházka Lukáš Ing. - Pontex s. r. o. [this message]
2011-01-25 13:37 ` Hans Hagen
2011-01-25 13:40 ` luigi scarso
2011-01-25 15:31 ` Hans Hagen
2011-01-25 15:43 ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-01-25 18:05 ` Hans Hagen
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