PGPLOT changes in Version 5.0.1

This version corrects several minor bugs; corrects a serious error in PGGRAY; adds functionality to the X window driver; adds a new driver for X window dump files.

pgplot

aaaread.me: Split into files aaaread.me, install.txt, whatsnew.txt, changes.txt.
drivers.list: Add warning that use of GIDRIV may require a license. Add /WD and /VWD (X-window dump files). Add comments to discourage people from trying to use PC drivers on UNIX systems. Revise /VERS and /VVERS.
makehtml: New perl script now generates syntactically correct html with cross-references [Diab Jerius].
makemake: Add instructions for SVdriv and WDdriv. Make it work with bash as well as sh. No longer makes pgplot.html by default. Remove VVdriv.

pgplot/drivers

gidriv.f: Avoid integer overflow (caused driver to crash on VAX/VMS). Add warning that use of this driver may require a license from Unisys.
tfdriv.f: Correct error in usage of GRFMEM.
svdriv.c, svblock.c: Restored from v4.9H (note: this driver for SunView is no longer supported: use XWdriv instead).
vedriv.f: Merge landscape and portrait modes in one driver.
vvdriv.f: Deleted.
wddriv.f: New file: generates X-window dump file [Scott Allendorf].
xwdriv.c, pgxwin_server.c: Fixes to datatypes of properties: corrects bugs found on Cray and Dec-Alpha (OSF/1). Support for all visual types, including TrueColor. Ability to set different attributes for each window via X resources. On VMS, checks that pgxwin_server has E or R access.
x2driv.c, figdisp_comm.c: Suppress warning messages produced by DECC compiler.
bcdriv.f, ccdriv.f, hjdriv.f, ladriv.f, ljdriv.f, todriv.f, txdriv.f: Eliminate use of routine gribf1.

pgplot/examples

pgdemo2.f: Add a test of an invisible polygon.

pgplot/fonts

aaaread.me: Note that pgunpack and pgdchar are unsupported.

pgplot/src

grcurs.f: Correct bug: start new picture if necessary.
grldev.f: Change ``Legal PGPLOT device types are:'' to ``Device types available:''.
grmker.f: Fix bug: viewport grew as symbols were plotted!
pgband.f, pgcurs.f: Issue message if device is not open.
pggray.f, grgray.f: PGGRAY now uses a color ramp between the colors assigned to color index 0 (background) and color index 1 (foreground). This should restore the old behavior: the ramp runs from black to white on devices with black background and white foreground, and from white to black on devices with white background and black foreground.
pgpage.f: If this routine detects that the size of the view surface has been changed (e.g., by a workstation window manager), it now rescales the viewport in proportion. Formerly the size of the viewport (in absolute units, e.g., mm) was not changed and so the viewport might extend outside the view surface. This only affects programs that do not reset the viewport for each page.
pgpoly.f, grpocl.f: Correct bug: an invisible polygon generated a spurious error message.
pgqcs.f, pglen.f, pgqvsz.f: Fix minor formatting errors in header comments.
pgqinf.f: Change version to 5.0.1.
pgslw.f, pgqlw.f, grslw.f: Correct header comments (line width unit is 0.005 inch).

pgplot/sys

gribf1.f: Deleted (also system-dependent variants).
grfileio.c: Add O_TRUNC to cause truncation when an existing file is overwritten.

pgplot/sys_convex

fc_cc.conf: Added -lX11.

pgplot/sys_cray

aaaread.me: Removed note about /XWIN: it now works.
grfileio.c: add O_TRUNC to cause truncation when an existing file is overwritten.

pgplot/sys_linux

aaaread.me: New file: note that many drivers cannot be compiled; note about disabling backslash interpretation.
f77_gcc.conf: Corrected to use ranlib, and revised list of libraries.

pgplot/sys_next

pgview/PGView.m: [Allyn Tennant] Correct resize bar.
af77_src/grfileio.c: add O_TRUNC to cause truncation when an existing file is overwritten.

pgplot/sys_sol2

aaaread.me: Added warning about non-ANSI C compilers.

pgplot/sys_sun

aaaread.me: Added note about SunView driver.

pgplot/sys_vms

build.com: Add PGQITF, PGSITF, PGPANL to transfer vector.
grfileio.c: Suppress warning messages produced by DECC compiler. Add O_TRUNC to cause a new version of the file to be created instead of overwriting (usual VMS behavior).
grlgtr.f: Convert supplied string to uppercase before attempting to translate it as a logical name.
make_demos.com: Correct comment.
make_font.com: Change protection of grfont.dat.