bob@teda.UUCP (Bob Armstrong) (02/19/91)
A simple (I hope) question: Suppose I want to define a Postscript image
that always maps itself onto the full size of the paper, regardless of
the actual paper size ? For example, if I printed the same Postscript
program on both A sized and C sized paper, both would exactly fill the
page.
If I could somehow find the actual device size _at runtime_, in either
device space or 1/72nd units, then I could easily set up a transformation
which maps some arbitrarily fixed size world space (say [0..1, 0..1]) onto
the whole page. Unfortunately I don't see any way to get the page size
at runtime.
Put another way, I want to define my user space relative to the actual
paper size rather than in absolute inches.
I realize that this isn't the original intent of Postscript, but surely
there must be some way to do it ??
Thanks,
Bob Armstrong
{sun,decwrl,pyramid}!teda!bobrcd@ico.isc.com (Dick Dunn) (02/19/91)
bob@teda.UUCP (Bob Armstrong) writes: > A simple (I hope) question: Suppose I want to define a Postscript image > that always maps itself onto the full size of the paper, regardless of > the actual paper size ? For example, if I printed the same Postscript > program on both A sized and C sized paper, both would exactly fill the > page. > If I could somehow find the actual device size _at runtime_,... We just went by almost the same problem, so this probably needs to go into a FAQ. (Not a criticism of Armstrong's question) The initial transformation matrix and the initial clipping path tell you interesting things about the device itself. In this case, the initial clipping path tells you the imageable area, so if you do (preferably within gsave/grestore, to avoid screwing up other stuff): initclip clippath pathbbox you have the area you can use. initclip resets the clipping path to the default startup value; clippath turns the clipping path into the current path; pathbbox gives you coordinates of lower-left and upper-right corners of the bounding box of this path. -- Dick Dunn rcd@ico.isc.com -or- ico!rcd Boulder, CO (303)449-2870 ...But is it art?