Using the Topology

The topology objects are used in a number of functions. The most visible is the Topology function in which defining and dependent objects are highlighted.

Another less visible but as important use is in the Planar/Panel/Recreate function. This function will recreate all the activated panels. Naturally these panels may have internal dependencies among them, and to get the correct result they must be regenerated in the correct order. The order is then derived using the topology objects. This may result in that some panels are only partly generated at first as some components may depend on components on other panels that have not yet been regenerated.

Also in the functions Planar/Panel/Copy and Planar/Panel/Move the topology objects are used to sort the panels and components in the correct order.

When using functions such as Planar/Model/Split STI it may be that the topological order among the component groups within the panel becomes disturbed. This results in that for example, the panel cannot be created from the scheme, as the statements are not in the correct order. However when storing the panel the component groups are sorted in the topologically correct order at the same time as the topology objects are updated.