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VEC.HLP
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1997-07-23
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Vector Graphics Support of PMPro
================================
Important Notes
===============
Through SuperView-Library PMPro now supports some exotic
vector graphics file formats (FIG, CGM...), where the reading of these
- as well as reading Postscript files - is only possible when
the freely available Ghostscript package also has been installed
Please read also the file README.GHOSTSCRIPT in the
DOCS-Directory!!
When using Ghostscript for Postscript-support you have to take
care of the following:
- Acquire Ghostscript V3.53 or V4.0 from somewhere (e.g. Aminet)
- Ghostscript must be correctly installed!!!
- Ensure that the correct Ghostscript version has been installed
- 68040/060 owners may also have to install a special patch, included
with the Ghostscript package, which will be applied to the MathIEEE
libraries - named "SetMathPatch" (alternatively use an up to date
SetPatch version greater V43.4 from Amiga International)
- It makes sense to replace the maths libraries on 68040/060
systems with better, more optimised versions. For example, the
"FMath" package from Aminet (V40.6 from Aminet:util/libs/FMath406.LHA)
can be recommended.
- Ghostscript requires a reasonable number of font files to work
correctly (Font files for fontmap entries), because without these
non-graphics postscript files would not work well. On various
GNU-CD-ROMs, FTP servers or on Aminet you will find some.
Just copy these to the "fonts" directory in the Ghostscript drawer.
- Ghostscript 3.53 seems to have a serious bug, which prevents present
Font files from being correctly localised, assigned and used.
This may mean that with Ghostscript 3.53 it will not be possible
to read CGM files (GPlot.svobject), since GPlot (version 4.3b2) always
explicitly requests a font called "Times-Roman".
Although it is not actually needed, unavailability of this font
may prevent reading of the (internally converted to Postscript)
GGM graphics.
- For testing Ghostscript after installation, check out the files
"tiger.ps" and "chess.ps" from the "Examples" drawer in the
Ghostscript directory. "Tiger.ps" should always work with a correct
installation, and "Chess.ps" will additionally require a working
system of additional fonts (Times-Roman, etc.)
- You should only activate support of PS, FIG and CGM graphics via
Ghostscript when Ghostscript runs without errors on your system.
Configuration
=============
There is a settings menu called Settings/Vector graphics, in which you
may set all necessary preferences for the vector file formats PS, EPS,
CGM and FIG.
Postscript Options
------------------
- Ghostscript: select the program Ghostscript here
- Colourdepth: select, which colourdepth should be used for importing
Postscript files. 8-Bit will usually suffice.
- Resolution: Which resolution (dpi - Dots per Inch) should be used
for importing. The default value of 73 dpi usually complies to
the screen resolution and should not be increased too much.
- Activate: Should this module be activated (see note) ?
Amifig / GPlot / EPS
---------------------
- Select GPlot: select the program GPlot.
- Activate: Should the GPlot module be activated (see note) ?
- Select fig2dev: select the program fig2dev (which comes with Amifig)
- Activate: Should the Amifig module be activated (see note) ?
- load EPS: This function determines whether loading an EPS graphics
imports the preview header or an interpretation by Ghostscript.
- save EPS: Determines the resolution which is being used for saving
EPS graphics. Saving EPS graphics does not require Postscript
and thus is always available, even if Ghostscript has not been
installed.
Note:
=====
Only activate support for PS, EPS, FIG and CGM graphics via
Ghostscript, if it works without errors on your system and
you actually wish to use these uncommon (on the Amiga)graphics.
Otherwise keep them deactivated!!! For the typical Amiga user,
these might not be of any interest.