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Msc-generator allows you to collapse boxes, entity groups and cluster subgraphs. (Currently this feature is not available for Block Diagrams.) This way you can show only a simplified view of the procedure or graph described by the chart text. E.g., instead of many arrows comprising a part of the procedure, a simple box is shown as a summary.
If you move the mouse over a chart element that can be collapsed (or is already collapsed), control icons appear at its top right corner. The control with the minus sign collapses the element, the control with the plus sign expands a collapsed element, while the green arrow collapses the element into a block arrow. The last icon will only appear for boxes of signalling charts, which are not part of a box series (Drawing Boxes).
You can disable the showing of such controls via the red plus button on the Chart pane. This improves compilation time a bit.
For signalling charts expanding and collapsing can also be set via the ‘collapsed’ attribute and hence is available for the command-line version, as well. It is most useful, however, for interactive work. Any collapse/expand setting via the GUI overrides the one specified by attributes. Such overrides are saved with embedded charts, but naturally not when the chart is saved to disk as text.
If you double click any element that has controls (can be collapsed/expanded) the first control is activated (even if controls are not shown). This essentially toggles collapse/expand status.
Next: Embedding a Chart in a Document, Previous: Auto Split, Up: Getting started [Contents]