encoding utf-8 source April1971.th # Change name to the main therion file #Surveys to output #----------------- #export map -proj plan -layout local -o April1971.pdf #Produces plan of cave, on a single sheet #export map -proj extended -layout local -o April1971Ee.pdf export model -fmt survex -o April1971th.3d #Survex file showing centre line only #export model -o April1971.lox #3d therion model to be viewed in the therion viewer #export map -proj plan -o April1971_Walls.3d #Survex file showing walls only layout local copy common debug off map-header 0 0 off endlayout