General ⇒ titlesec | Custom Headings

[epicurea]

I am trying to build 2 new custom headings using titlesec as under:

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\titleclass{\WP}{straight}[\section]
\titleformat{\WP}[hang]{\normalfont\scshape}
	{\S\,Work Package\,\oldstylenums{\theWP}.}{.5em}{}[]
\titlespacing{\WP}{0pt}{*1.5}{*0}
\newcounter{WP}
%\renewcommand\theWP{\thesection.\arabic{WP}}
\renewcommand\theWP{\arabic{WP}}

\titleclass{\Taskr}{straight}[\WP]
\titleformat{\Taskr}[hang]{\normalfont}
	{Bingo\,\arabic{\theTaskr}.}{.5em}{}[]
\titlespacing{\Taskr}{0pt}{*1.5}{*0}
\newcounter{Taskr}
%\renewcommand\theTaskr{\theWP.\arabic{Taskr}}
\renewcommand\theTaskr{\arabic{Taskr}}

When I call \WP, everything works fine, but when I call \Taskr I get:

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./PROCESS_C.tex:180:Missing number, treated as zero. \Taskr {test}

What am I doing wrong??
Thanks!

[gmedina]

The problem is in this line:

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{Bingo\,\arabic{\theTaskr}.}{.5em}{}[]

Change it to

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{Bingo\,\arabic{Taskr}.}{.5em}{}[]

[epicurea]

That works - fantastic and many thanks!
Could you explain why that works though? How come it is fine for the 1st set of declarations but not the second?

[gmedina]

Sure. I assume you are talking about the difference between the use of \oldstylenums and \arabic.

Some commands, such as \arabic, \roman, etc, expect as their argument a counter. Here you can find some information about counters.

On the other hand the argument of \oldstylenums has to be the set of digits (or, in your case, the actual numerical representation of the counter that you defined) that you want to type in that style.

The command \the produces the visual representation for a counter. In the link I provided you can find additional information.

[epicurea]

I see, so it has to do with the counter formatting I was choosing.
That was very helpful - many thanks!

[epicurea]

Hi - One more problem. So I formatted my second declaration like so:

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\newcounter{Taskr}
\renewcommand\theTaskr{\theWP.\arabic{Taskr}}
\titleclass{\Taskr}{straight}[\WP]
\titleformat{\Taskr}[runin]{\normalfont\em}
	{\emph{Task\,\theTaskr}}{.5em}{}[:\,]
\titlespacing{\Taskr}{0pt}{*0}{*0}

Now, when the second \WP is called (which is the heading one level above \Taskr) it continues the numbering for \Taskr from where the previous set left off. The output looks like this:

WP 1. Here is the first
Task 1.1 Some text here
Task 1.2 Some more text here
WP 2. Now the second
Task 2.3 Here is where it should start from 1 again
Task 2.4 And so on

Why isn't the counter reset? I have specified in the titleclass declaration that \Taskr is a child of \WP, so I assumed this would take care of it.

Thanks.

[gmedina]

Two possibilities:
1)

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\usepackage{amsmath}
\numberwithin{Taskr}{WP}

2)

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\usepackage{chngcntr}
\counterwithin{Taskr}{WP}

[epicurea]

That works!
Thanks - you have been most helpful.

[epicurea]

This is turning into a very interesting exercise!
Everything works fine except that while defining the new headings (WP, Taskr) I did not plan for the fact that I only wanted these as alternatives to the \subsection and \subsubsection commands and not as replacements. Naturally, this results in no numbering for \subsection etc in other parts of the document where I no longer require \WP and \Taskr. Do you know of a good workaround to this?
Thanks!

[gmedina]

You will have to increase the value of the counter secnumdepth. In the preamble, use something like

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\setcounter{secnumdepth}{5}

ans analogously, for the subsections to be included in the ToC you will have to inclrease tocdepth:

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\setcounter{tocdepth}{5}