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- PGPLOT changes in Version 5.0.2
-
- This version implements fill-area styles 3 and 4 (hatching and cross-hatching).
- This affects polygons drawn with PGPOLY, PGCIRC, and PGRECT. Hatching is
- selected by CALL PGSFS(3), and cross-hatching is selected by CALL PGSFS(4); see
- also PGQFS. There is a new user-callable routine (PGSHS) to control the angle
- and spacing of hatch lines, and a corresponding new inquiry routine (PGQHS).
- There is also one new internal routine (PGHTCH). Drivers have been modified so
- that they all interpret self-intersecting polygons the same way: a point is
- inside the polygon if an infinite ray with the point as origin crosses an odd
- number of polygon edges (``EvenOddRule'' in X-window terminology). Example
- program PGDEMO1 has been revised to show the new fill-area styles.
-
- Routine PGERRB has acquired new options that allow symmetric, two-sided error
- bars to be drawn with one call instead of two.
-
- There are two new drivers, LXDRIV, to create a LaTeX picture environment (this
- is only useful for very simple plots), and HGDRIV, to create a plot in HPGL2
- format. The PostScript driver has been updated to record a correct bounding box
- for each page, and optionally include comments describing text strings. Note
- that the bounding-box is now written at the end of the file, i.e., after PGPLOT
- has figured out what it should be. Some programs that import PostScript require
- the bounding-box in the file header. The script pgplot/pscaps.sh can be used to
- move the bounding-box information into the header.
-
- There are four bug-fixes: (1) in routine PGSUBP which was not setting the
- viewport correctly; (2) in routine PGCONL (actually PGCL) which was writing
- contour labels at the wrong angle; (3) in routine GRPARS which was incorrectly
- attempting to overwrite the supplied device spec when doing logical-name
- translation [VMS only]; (4) in routine GRFA which would sometimes incorrectly
- fill a re-entrant polygon.
-
- Support is added for the FreeBSD operating system and for PCs running MS-DOS
- with Salford Software Fortran (pgplot/sys_salford) or Microsoft PowerStation
- Fortran (pgplot/sys_msdos).
-
- All the UNIX configuration files have been modified to add a CFLAGD parameter
- that controls linking of C programs that call PGPLOT.
- -------------------------------------------------------------------------------
-
- pgplot
- aaaread.me
- Updated for version 5.0.2.
- ver500.txt, ver501.txt
- Earlier release notes (renamed and reformatted).
- ver502.txt
- Release notes for this release (this file).
- copyright.notice
- Updated.
- drivers.list
- Updated for new drivers.
- install.txt
- Updated.
- makemake
- Add PGHTCH, PGSHS, PGQHS to routine list; remove GRSFS. Modify to
- avoid use of shell functions that are not supported by some old
- versions of the Bourne shell.
- pscaps.sh
- (New file.) Script to modify a PostScript file by moving the
- BoundingBox comment from trailer to header. This will convert a
- single-page PGPLOT PostScript file into valid Encapsulated
- PostScript.
- pgplot/cpg
- cpgplot.doc
- Added further instructions on linking C and Fortran.
- libgcc_path.sh
- A new script that tries to generate the correct linking commands for
- use with mixed Fortran and gcc.
- pgplot/drivers
- ccdriv.f, ladriv.f, lndriv.f
- Remove backslashes and PDP-11 octal constants from code to improve
- portability (but these drivers are probably still specific to VMS).
- epdriv.f
- Remove some VMS dependencies; has not been tested under UNIX,
- however.
- hgdriv.f
- (New file.) Driver for HPGL2 graphics, from Colin Lonsdale.
- ljdriv.f
- (Bug fix.) Add a SAVE statement for non-static compilers.
- lxdriv.f
- (New file.) Driver for LaTeX picture environment, from Grant
- McIntosh.
- pgxwin_server.c
- Add omitted include: X11/Xos.h.
- psdriv.f
- (New feature.) If the supplied file name is '-', the driver send the
- PostScript output to standard output. (Note: this will only work when
- Fortran unit 6 is connected to standard output.) A correct
- PageBoundingBox comment is now included for each page. Plotted text
- can be included in the PostScript file as comments if environment
- variable PGPLOT_PS_VERBOSE_TEXT is set.
- tfdriv.f
- Improved optimization [David R. Chang]. Note that this driver is for
- VMS systems where the regular Tektronix driver (ttdriv.f) can send
- output to a terminal but cannot create a disk file.
- xwdriv.c
- Change polygon fill rule from ``WindingRule'' to ``EvenOddRule'' to
- match other drivers. Suppress message about starting server (when it
- starts successfully). Update comments.
- pgplot/examples
- pgdemo1.f
- Revise example 6 to show all four fill-area styles, and example 7 to
- use the new options in PGERRB.
- pgdemo2.f
- Revise to exercise hatching styles.
- pgdemo3.f
- Change internal subroutine name PLOT to avoid possible conflicts with
- other libraries.
- pgdemo12.f
- Call PGBEG as a function rather than a subroutine.
- pgplot/pgdisp
- initlgwin.c
- Change polygon fill rule from ``WindingRule'' to ``EvenOddRule'' to
- match other drivers.
- pgplot/src
- grfa.f
- (Bug fix.) Fixed bug in filling re-entrant polygons (thanks to Andrew
- Carman).
- grlin3.f
- Prevent a possible `sqrt of negative number' error.
- gropen.f
- (Bug fix.) Avoid a zero-length string problem. Explicitly initialize
- variable to zero.
- grpars.f
- (Bug fix.) No longer overwrites supplied string with logical name
- translation; avoid a zero-length string problem.
- grpckg1.inc
- Remove unused variable GRFASL.
- grsfs.f
- (File deleted.)
- grtext.f
- Now sends text as a comment to output when requested.
- pgbeg.f
- Initialize hatching attributes. Explicitly initialize variable to
- zero.
- pgbox.f
- (Aesthetic improvement.) Move labels outwards slightly when inverted
- ticks are requested; adjust position of `MV' y labels.
- pgcl.f (support routine for pgconl)
- (Bug fix.) The contour labels were written at the wrong angle when x
- and y scales differed (thanks to Gerry Haines for discovering this);
- also labels could be drawn outside the window.
- pgerrb.f
- (Enhancement.) Add options 5 and 6 for drawing symmetric two-sided
- error-bars.
- pghtch.f
- (New file.) Routine for hatching (shading) polygon.
- pgmtxt.f
- (Bug fix.) The routine could try to use a zero-length character
- substring, which is not allowed by the Fortran-77 standard.
- pgplot.inc
- Add hatching attributes.
- pgpoly.f
- Add support for hatching.
- pgqfs.f
- Add file styles 3 and 4 (hatching).
- pgqinf.f
- Change version to 5.0.2. Avoid some zero-length string problems.
- pgqhs.f
- (New file.) Routine to inquire hatching style.
- pgrect.f
- Add support for hatching.
- pgsave.f
- Save hatching style.
- pgsfs.f
- Add file styles 3 and 4 (hatching).
- pgshs.f
- (New file.) Routine to set hatching style.
- pgsubp.f
- (Bug fix.) Rescale viewport when panel size changes.
- pgplot/sys_dos
- *.f
- Split grdos.for into separate files for easier maintenance.
- pgplot/sys_freebsd
- aaaread.me, f77_cc.conf, iand.c
- (New directory.) Support for FreeBSD operating system (Jean-Marc
- Zucconi).
- pgplot/sys_hp
- aaaread.me
- (New file.) Add notes about optimization.
- fort77_gcc.conf
- (New file.) Configuration file for use with gcc compiler (not
- tested).
- pgplot/sys_msdos
- aaaread.me, etc.
- (New directory.) Support files for MS Power Station 32-bit Fortran
- (from C. T. Dum).
- pgplot/sys_osf1
- aaaread.me
- (Modified.) Add note about shareable library.
- f77_cc_shared.conf
- (New file.) For making a shareable library.
- pgplot/sys_salford
- aaaread.me, *.f
- (New directory.) New system-specific files for MS-DOS with Salford
- Software Fortran (from Michael Michelson).
- pgplot/sys_sun4
- *.conf
- Change -pic to -PIC (a large global offset table is needed if many
- drivers are selected).
- pgplot/sys_ultrix
- f77_cc.conf
- Add "-lX11" in LIBS and "-Olimit 600" (for optimizing complex
- routines) in CFLAGC (Jaiyong Lee).
- pgplot/sys_vms
- build.com
- Add PGSHS, PGQHS to transfer vector. Do not attempt to link with UIS
- on an AXP machine.
-
- -------------------------------------------------------------------------------
- Tim Pearson, California Institute of Technology, tjp@astro.caltech.edu
- Copyright ⌐ 1995 California Institute of Technology
-