cet1@cl.cam.ac.uk (C.E. Thompson) (03/20/90)
Can an EPS file assume a particular value for 'currentpacking', or should it set the value if necessary? Conversely, must it restore the value if it changes it? There doesn't seem to be anything explicit in the Adobe documentation about this. Chris Thompson JANET: cet1@uk.ac.cam.phx Internet: cet1%phx.cam.ac.uk@nsfnet-relay.ac.uk
glenn@heaven.woodside.ca.us (Glenn Reid) (04/09/90)
In article <1832@gannet.cl.cam.ac.uk> cet1@cl.cam.ac.uk (C.E. Thompson) writes: >Two weeks ago, in article <1813@gannet.cl.cam.ac.uk>, I wrote >> >>Can an EPS file assume a particular value for 'currentpacking', or should >>it set the value if necessary? Conversely, must it restore the value if it >>changes it? There doesn't seem to be anything explicit in the Adobe >>documentation about this. An EPS file should be able to assume that 'currentpacking' is 'false', since things can break if it isn't (like writing into an array). The host program should definitely restore the packing before it includes an EPS file. But, I would recommend setting it to what you want, and returning it to what it was before you started. It's pretty easy, and provides the maximum amount of protection for both you and your surrounding environment. This is generally the right idea for anything resembling EPS; leave the environment as you found it, and /currentpacking where { %if pop % dictionary from "where" operator /pack currentpacking def true setpacking } if % your stuff here /setpacking where { %if pop pack setpacking } if /Glenn pop