OpenPHIGS

This repository is based on OpenPHIGS from

https://sourceforge.net/projects/phigs/files/

which is based on

https://www.x.org/archive/unsupported/lib/PHIGS

This distribution contains modifications and extensions which are needed for the purpose of data preservation in high energy physics. The code maturity level is pre-alpha, since it does not implement the full standard, neither for the C bindings, nor for Fortran.

Building

Run

make
make install

which will create and install the OpenPHIGS library, headers and tests in a new subdirectory called distrib. The install step will create a folder called distrib, including headers, binaries and libraries.

Switching between GLEW and Epoxy

Openphigs uses by default GLEW. Switching between GLEW and Epoxy is supported by configuring with -DUSE_GLEW=0. The Makefile checks for the environment variable NO_GLEW. If defined, it will use Epoxy, else GLEW. To switch to Epoxy, do

NO_GLEW=1 make

Switching between Xaw and Motif Widgets

By default, widgets will use Motif. To switch to Xaw, make sure that cmake is configure without the -DMotif switch. Take a look at the top level CMakeLists.txt file

Extensions

Some extensions have been implemented, specifically for the Fortran bindings, to support the DELPHI and OPAL event displays.

New Work station types 4 and 5

Work station types 4 (without double buffering) and 5 (with double buffering) take a screen shot when closed and write the screen shot as targa file to a file name.

Fortran bindings:

The second argument of popwk expects a non-zero integer which will be passed on as LUN.

• If a file name has been defined in the configuration file as %wf , the targa file will be created with this name in the current folder.
• If no file name has been defined in the configuration file as %wf fort. will be used.
• After opening the work station, the output file name can be set with a call to CALL PSFNAME(WKD, ) where filename can be the full path to the output

C bindings

• If a file name has been defined in the configuration file as %wf , the targa file will be created with this name in the current folder.
• If no file name has been defined in the configuraiton file, it defaults to "output.tga" and is created in the current directory.

Transparency

The ALPHA channel in a structure can be set with

CALL PSALCH(X)

where X is a floating point number between 0. (fully transparent) and 1. (fully opaque).

Migration notes and extensions

Some notes on differences with respect to other implementations.

Workstation numbers

Workstation numbers can be in the range from 0 to 99.

Workstation types

• 0 PWST_OUTPUT_TRUE Output only on GL display
• 1 PWST_OUTIN_TRUE Input/Output on GL display
• 2 PWST_OUTPUT_TRUE_DB Output only on GL, buffered
• 3 PWST_OUTIN_TRUE_DB Input/Output on GL display, buffered
• 4 PWST_HCOPY_TRUE Hardcopy to file as TGA
• 5 PWST_HCOPY_TRUE_DB Hardcopy to file as TGA
• 6 PWST_HCOPY_TRUE_RGB_PNG Hardcopy to file as PNG RGB only
• 7 PWST_HCOPY_TRUE_RGB_PNG_DB Hardcopy to file as PNG RGB only, same as 6
• 8 PWST_HCOPY_TRUE_RGBA_PNG Hardcopy to file as PNG with Alpha channel
• 9 PWST_HCOPY_TRUE_RGBA_PNG_DB Hardcopy to file as PNG with Alpha channel, same as 6

Notes:

• There is no support for PostScript at the moment.
• The hardcopy types are available in Fortran. C-Bindings have not been tested with them

Input devices

Openphigs behaviour on echo modes is summarized below.

String echo modes

• echo mode 1
  • opens a new window
  • echo area given in NC coordinates for the root window
• echo mode -1
  • echo area given in % relative to the main window

Valuator echo modes

• echo mode 1:
  • uses default strings for label, format low label and high label
  • opens a new window
  • echo area given in NC coordinates for the root window
• echo mode -1: As mode 1 but expects additional parameters as string, namely
  • label
  • format
  • low label
  • high label These should be encoded

Extensions:

• echo mode 2:
  • as echo mode 1 but places the window on top of the main window
  • echo area given as a fraction of the main window
• echo mode -2:
  • as echo mode -1 but places the window on top of the main window
  • echo area given as a fraction of the main window
• echo mode 3, -3:
  • as echo mode 2 but places the window on top of the main window
  • echo area given as a fraction of the main window
  • boxes the valuators up in one Window. (!) PPREC expects one integer for this echo mode which is the number of valuators to be boxed up

Choice echo modes

• echo mode 1:
  • opens a new window
  • echo area given in NC coordinates for the root window
• echo mode -1:
  • displays window on top of the root window
  • echo area is given as a fraction of the root window
• echo mode 3:
  • opens a new window
  • echo area given in NC coordinates for the root window
  • expects titels as strings
• echo mode -3:
  • as 3 but
  • echo area is given as a fraction of the root window
• echo mode 4:
  • as 3 but expects one more string
  • last string will be used as title
• echo mode -4:
  • as 4 but
  • echo area is given as a fraction of the root window

Extensions

There is some support for transparency.

Fortran bindings

• PXNDEF(STRING NAME): set the configuration location and file name

• PXHCSF(INTEGER IWK, REAL VALUE): Set hardcopy scale factor for workstation ID WKID. Must be set before the workstation is being opened

• PSALCH(REAL VALUE): set ALPHA channel to Value. Value is between 0(fully transparent) and 1 (opaque). Added to the current structure.

C-bindings

• pxset_conf_file_name(char* path): set the configuration location and file name

• pxset_conf_hcsf(WKID, float value): Set hardcopy scale factor for workstation ID WKID. Must be set before the workstation is being opened

• pset_alpha_channel(float value): C-Binding for PSALCH. Added to the current structure.

Versions

• 0.0.1-1: Revised code from upstream
• 0.0.2-1: Implement additional extend C and Fortran bindings for CERN specific purposes
• v0.1-1: Fixes for exotic hardware
• v0.2-1: Introduce scale factor for hardcopies