The ‘note’, ‘comment’ and ‘endnote’ commands enable you to make annotations to the chart that are visible to the reader. Notes are placed onto the chart drawing area in a callout; comments are placed onto a column left or right from the chart; whereas endnotes are placed at the bottom of the chart. Notes are suitable for shorter comments, whereas the latter two fit longer explanations better.
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Each note, commend and endnote has a target element. The target element is the element preceeding the ‘note’, ‘comment’ or ‘endnote’ command50. In case of notes the tip of the callout will point to the target element, whereas side notes will be typeset beside their target. You can issue multiple notes, comments and/or endnotes to the same target. If numbering is enabled for a note, comment or endnote, it inherits the numbering of its target (if any).
The syntax is simple, issue one of the three commands with attributes. You must specify a label, but similar to arrows or entities, the colon syntax can be used.
note: This is a note [attributes]; note at <tip>: Note pointing to <tip> [attribute]; comment: Comment text [attributes]; endnote: Endnote text [attribuest];
Note and comment text is typeset in a smaller font by default. You can change both of the above by changing the ‘note’, ‘comment’ or ‘comment’ styles.
Note that some elements cannot be targets, such as chart options. In this case the preceeding element becomes the target.