How to setof float wire Net ？

Floating wires could be detected by finding those (note after schCheck/schExtractConn has been called) which don't have any instTerms on the associated net:

cv=geGetEditCellView()
floatingWires=setof(shape cv~>shapes shape~>layerName=="wire" && member(shape~>objType '("line" "path")) && !shape~>net~>instTerms)

Note that this will also find any wires that are only connected to a pin. If you want to filter those out:

floatingWires=setof(shape cv~>shapes shape~>layerName=="wire" && member(shape~>objType '("line" "path")) && !(shape~>net~>instTerms || shape~>net~>term))

Andrew

Thank you for your reply ！！

Test the above code found that can not filter out the wire with the wire label but not connect to the instance symbol or pin on either side; Such lines, I need to filter out to delete

There are also broken wires (left after the instance symbol  deleted), how to filter them out to delete them

If you are trying to find physically isolated wires (rather than logically isolated - I assume the wire in the example you give is not being found because it is connected by name to another wire which is connected to the pin of a device) then you need to start checking the coordinates of wires to see whether they overlap with pins or at the same coordinates as other wires. That's more involved and I don't have existing code to do that (it would be a combination of tracking coordinates of wires in a table plus use of dbGetOverlaps to find overlapping pins, I expect). There's nothing in the database directly that provides this info.

One other possibility would be to run the schematic check, and then look at cv~>markers. If you find a marker (such as one for "Floating net" (you'd probably need to pattern match the msg attribute on the marker), you could then find the associated wires by looking at the marker~>objects and then potentially deleting those objects with dbDeleteObj once you're sure it's the right kind of check that is failing. This is going to be a lot simpler than re-inventing the schematic tracer to find floating wires.

Andrew