Contents Previous Next Up-> overview cross navigate overview-> License why Install get_started running files titles+headings cross format spellchecking latex other browser glossary wish_list whatsNew Down_up_1-> Keyword cref href rref tref mref navigate Down_up_0 Sibling-> Keyword cref href rref tref mref navigate Down Across-> contents reference index search external Current-> Syntax Purpose Type ---..Example label Prev and Next No Such Section Default Example Root Section

$navigate%type 1%label 1% ... %type n%label n%$$ Purpose OMhelp automatically creates navigation links, relative to each section (at the top of each section). The navigate command determines which navigation links are included, the order of the links, and label for each of the links. Type The navigation links have the types listed in the table below.  Type Link to Content The table of contents section for entire document Prev The previous section in read order Next The next section in read order Top The section at the top of tree (corresponds to root_file ) Up The group of section above this one in tree Sibling The group of sections with same parent as this one in tree Down The group of sections directly below this one in tree Down_up_i The sections directly below the section i levels up in the documentation tree. where i is a number between 0 and 9. Across The group of sections that cross reference entire document Current The group of headings and subheadings for this section Note that the type Down_up_1 is the same as Sibling and Down_up_0 is the same as Down (but Down_up_2 is not the same as Up). Example Suppose that the tree corresponding to a document is  A B N R W C F OPQ STUV XYZ DE G J HI KLM The corresponding read order is  A,  B, ...,  Z. For this example, if the current section is  F  current section  F The previous section  E The next section  G The section above  B The section two levels up  A The group above this one  B,  A The group of siblings  C,  F The group directly below  G,  J label The value label 1 is the label that the user will see for the navigation links corresponding to type 1 . The value label 2 is the label that the user will see for the navigation links corresponding to type 2 and so on. The labels cannot begin with the special character _ with the following special exception:  _up_i  where i is a number between 0 and 9. In this special case, the cross reference tag for the section i levels up from the current section is used for the label. Note that the size of the label corresponding to _up_i will change from section to section. Hence the position of subsequent labels in the navigation command will change. Because the user will often repeatedly select Prev or Next, it is desirable to have their positions the same for all sections. This requires placing them before any labels that will change size between sections. No Such Section If Down_up_i is the specified type, and there is no section i levels up, neither the label nor its links will be present on the current section. If _up_i is specified label, and there is not section i levels up, neither the label nor its links will be present on the current section. Default The default value for the navigation command is  navigate% Prev%Prev% Next%Next% Across%Index% Up%Up% Down_up_4%_up_4% Down_up_3%_up_3% Down_up_2%_up_2% Down_up_1%_up_1% Down_up_0%_up_0% Current%Headings %$$  Example The navigation links for this section were specified with the following command: $navigate% Content%Contents% Prev%Previous% Next%Next% Up%Up% Down_up_2%Down_up_2% Down_up_1%Down_up_1% Down_up_0%Down_up_0% Sibling%Sibling% Down%Down% Across%Across% Current%Current % 
In the special case where a \$navigate command appears in the root section section, and does not appear in the current section, the value specified in the root section is used for the current section; i.e., it replaces the default command above.