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triggered by several recent requests I have started to implement a Cadence techfile import script.
The script can be found here. It can be saved as import_tf.rbm into KLayout's installation folder (on Unix don't forget to set $KLAYOUTPATH to that folder).
It will install a new menu item in the "File" menu (above "Load Layer Properties"): "Import Cadence Techfile". When run, this function will first ask for the file name of the Cadence ASCII techfile and then try to locate a *.drf file there. If that fails, it will ask for the path to the *.drf file.
The script clears the layer list and creates a new one from the tech file settings. Only layers with a stream layer and datatype mapping are produced currently.
The script is just a first try. Please give feedback (preferably by mail) if you have problems reading your techfiles.