Postscript output option `F10'

`F10' key activates the Postscript printing/hardcopy mode. Once the key is pressed allsky will stay in `print' mode until it is pressed again. The user is prompted for a filename, with a default filename provided in square brackets "[allsky1.ps]". If the name chosen by the user corresponds to an already existing file, allsky queries the user about whether or not to overwrite the already existing file. If the file is not to be overwritten, a file extension number will be added automatically to the file name, starting with `1'. If the user chooses to create a second plot, the F10 key must be toggled off and then on again. If this is not done, allsky will automatically overwrite the contents of the file previously created. It is possible to increment the filename up to 99, which is the maximum increment possible under DOS filename rule. The number incrementing feature applies only to the default filenames and will not work with user specified filenames.

The `F10' option will not automatically send the Postscript files to the printer. This is because in PC's printing can greatly slow down the system plus it is not guaranteed that the user will have a postscript printer attached to the system that is running the program.