CadnaA
CadnaA’s own file format has the file extension CNA. Any CadnaA file can be imported into the current CadnaA file using the command File|Import.
When importing CadnaA files with objects containing references to the library objects Sound Level, Sound Reduction, or Absorption it is checked upon import whether there are duplicates in the import file with the same spectra-ID. If so, then - in case the data deviates from the original - a copy with a new ID is created in the respective library (with a counting number attached) and linked.
Note
In former releases of CadnaA, in case of double IDs with library objects in the import file, just the first library object was linked to all objects having this reference.
Dialog Options for CadnaA-Import
Dialog options
Import all Object-Types/Select Object-types
On this part of the dialog select the object type/s to be imported by marking them in the list. Multiple selections are possible (key CRTL, regarding object type selection see Importing selected Object Types).
Option "Just Update Immission Values", "from Variant"
In case the object "Receiver" and/or "Building Evaluation" is selected, the receiver level can be updated - with importing the objects - from the selected variant.
Option „Replace Current Aircraft Groups“
Note
This options is just available with the option FLG installed.
With the option „Select Object-types“ and the object type „Aircraft Group“ selected, this option can be activated in addition. In this case, the aircraft groups in the at the current CadnaA file are replaced upon import by the aircraft groups in the file imported. Aircraft groups not available in the current file are appended to the table Aircraft Group.
Dialog Options for CadnaA-Import, selection „Aircraft Group“
Option „Import only Section“
With this option activated, a named section in the CadnaA target file (current file) can be selected. Only those objects laying inside of the section specified (plus a border area when specified) will be imported (see Import only Section)