mirror of https://github.com/GNOME/gimp.git
72 lines
3.0 KiB
Plaintext
72 lines
3.0 KiB
Plaintext
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PostScript file plugin V1.02 for the GIMP Peter Kirchgessner, 12-Oct-97
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========================================= e-mail: pkirchg@aol.com
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WWW : http://members.aol.com/pkirchg
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Here is a PostScript file plugin for the GIMP.
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The plugin will not work with GIMP V 0.54 !
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In the directory
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ftp://members.aol.com/pkirchg/pub/gimp
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you will find the following files:
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ps.txt : this document
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ps.tgz : gzipped tarfile with source
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ps.linux.386.elf.tgz : gzipped tarfile with Linux executable
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News:
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V 1.02 support for anti-aliasing (George White).
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no progress bars for non-interactive mode.
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new procedure file_ps_load_setargs to set
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load arguments non-interactively.
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Check for GS_OPTIONS. If not set, use at least "-dSAFER".
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V 1.01 parse rc file (changes font in dialogue).
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V 1.00 clip everything outside BoundingBox.
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support for multi page documents.
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PDF input.
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The PostScript file plugin handles reading and writing of PostScript files.
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For interpreting PostScript, ghostscript must be installed. The gs-
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executable must include the pbmraw, pgmraw, ppmraw and pnmraw devices.
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At least the ppmraw device is necessary.
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If ghostscript supports PDF reading, the plugin can also read PDF.
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For writing PostScript, the following image-operators are used:
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colorimage (indexed and RGB images)
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image (gray images)
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The colorimage operator is available with PostScript Level II,
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but it should also be available on Color PostScript Printers
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with PostScript Level I.
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For usage of antialiasing, ghostscript must support the
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-dTextAlphaBits and -dGraphicsAlphaBits commandline arguments for
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the ppm-devices. These are available with V 4.01, but maybe also
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with V 3.65. For PDF-input, anti-aliasing seems not to work
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(at least not with gs V 4.01). The -d...AlphaBits options are not
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used by the plug-in, when the anti-aliasing options are set to "none".
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The path to locate ghostscript can be changed by setting
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the environment variable GS_PROG to point to the executable.
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If additional arguments must be passed to ghostscript, please
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use the environment variable GS_OPTIONS. This is evaluated by
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ghostscript itself. If GS_OPTIONS is not set, the plug-in adds
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-dSAFER automatically.
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The procedure file_ps_load_setargs can be used within script-fu to
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specify the interpretation options for the plug-in. The arguments to
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file_ps_load_setargs are:
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PARAM_INT32: Resolution to interprete image (dpi)
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PARAM_INT32: Desired width
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PARAM_INT32: Desired height
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PARAM_INT32: 0: Use width/height, 1: Use BoundingBox
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PARAM_STRING: Pages to load (e.g.: 1,3,5-7)
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PARAM_INT32: coloring. 4: b/w, 5: grey, 6: colour image, 7: automatic
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PARAM_INT32: text antialiasing: 1: none, 2: weak, 4: strong
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PARAM_INT32: graphics antialiasing: 1: none, 2: weak, 4: strong
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Installation:
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To tell the GIMP about the PostScript-file-plugin, copy the ps-executable
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to /usr/local/lib/gimp/0.99.x/plug-ins .
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Bug reports or suggestions should be e-mailed to pkirchg@aol.com
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