Loads a topology into memory.
(tpm_acload toponame [source])
Returns T or nil.
| toponame | Topology name (string) |
| source | Source flag T or nil: T Read from source drawings only nil Read from current drawing only (default) |
Before loading a topology, you must first test for its existence with tpm_acexist.
Topology information is stored in the drawing, but the topology is not automatically loaded when you open the drawing. If you want, for example, to query, edit, or overlay a topology, you must load it into memory. Once loaded, the topology remains in memory until you unload it.