Re: [NTG-context] Spacing between formula and texts

20 Sep 2007


      On Thu, 20 Sep 2007 03:04:20 +0800
"Zhichu Chen"  wrote:
...
Hi Wolfgang,
On 9/20/07, Wolfgang Schuster  wrote:
...
On Wed, 19 Sep 2007 23:30:26 +0800
"Zhichu Chen"  wrote:
...
\usemodule[units]
\setupindenting[big]
\indenting[always,next]
% no, not, yes, always, never, first, next
% \setupformulas[spacebefore=5em]
\starttext
Blah,
blah, blah, blah, blah, blah, blah, blah, blah,
blah, blah, blah, blah, blah, blah, blah, blah,
blah, blah, blah, blah, blah, blah, blah, blah,
blah, blah, blah, blah, blah, blah, blah, blah,
I love the following formula:
\placeformula[-]
  \startformula
    6.670 \times 10^{-11} \Newton \Times \Square \Meter \Per \Square
\Kilo
\Gram
  \stopformula
which is very cool.
which is very cool.
which is very cool.
which is very cool.
which is very cool.
% \showmathcharacters
\stoptext
Hi Chen,
I can't give a real solution but only a workaround, the problem lies in
the macro \beforedisplayspace which calls \docomplexdoblank which calls
itself \presetindentation and this macro causes your real problem.
You solve this now by placing \let\presetindentation\relax at the begin
in your document or remove the next key for \setupindenting.
Really! It works fine with "first" key. OK, I can just live with that,
although I hope Hans will have time to fix it, it's not so cool with the
first paragraph indented :)
This is all what I can do for you in a few minutes, the rest is up to
...
Hans to make a extra test in \beforedisplay or somewhere else to
disable \preetindentation before a display formula.
Wolfgang
Hi Chen,

you use the following code for the moment (untested):

\newif\ifquicksolution \quicksolutiontrue

\def\beforedisplayspace
  {\doifnot{\formulaparameter\c!spacebefore}\v!none
     {\quicksolutionfalse\blank[\formulaparameter\c!spacebefore]}}

\def\afterdisplayspace
  {\doifnot{\formulaparameter\c!spaceafter }\v!none
    {\blank[\formulaparameter\c!spaceafter ]\quicksolutiontrue}}

\def\presetindentation
  {\doifoutervmode{\ifindentfirstparagraph\else\ifquicksolution\noindentation\fi\fi}}

Wolfgang