This menu includes all the zoom options available on the work space:
zoom in,
zoom out,
panoramic,
standard scale.
It also contains the Display/Hide the cardinalities option which offers whether to display the cardinalities of the entities/relationships links.
Zoom in / Zoom out
These zoom options are used to zoom one step forwards/backwards with respect to the upper left-hand corner of the screen. Thus the apparent size of objects is maximized/minimized. The graph can be viewed globally, the objects can be handled with a greater accuracy and links traced more precisely.
When the highest/lowest zoom level has been reached (with the zoom in or with the zoom out/panoramic options), the corresponding option is dimmed.
These zooms can also be performed from the tool palette.
Standard scale
This option restores the standard view of objects, i.e. the initial zoom level of the graph. This operation is performed with respect to the upper left-hand corner of the screen.
This option is not active when the current scale is already set to standard scale.
Panoramic
This option zooms out until all the width or all the height of the work space is visible on the screen. The resulting view corresponds to the minimum zoom level of the design. It also gives a more global view of the graph.
The operation is performed with respect to the upper left-hand corner of the screen.
This option is not active when the current scale is already set to panoramic.
Display / hide the cardinalities
The cardinalities of the links between entities and relationships are made visible or invisible on the screen, depending on whether the cardinalities are currently invisible or visible.