NAME

       PostScript::Simple::EPS - EPS support for PostScript::Simple

SYNOPSIS

           use PostScript::Simple;

           # create a new PostScript object
           $p = new PostScript::Simple(papersize => "A4",
                                       colour => 1,
                                       units => "in");

           # create a new page
           $p->newpage;

           # add an eps file
           $p->add_eps({xsize => 3}, "test.eps", 1,1);
           $p->add_eps({yscale => 1.1, xscale => 1.8}, "test.eps", 4,8);

           # create an eps object
           $e = new PostScript::Simple::EPS(file => "test.eps");
           $e->rotate(90);
           $e->xscale(0.5);
           $p->add_eps($e, 3, 3); # add eps object to postscript object
           $e->xscale(2);
           $p->add_eps($e, 2, 5); # add eps object to postscript object again

           # write the output to a file
           $p->output("file.ps");

DESCRIPTION

       PostScript::Simple::EPS allows you to add EPS files into PostScript::Simple objects.
       Included EPS files can be scaled and rotated, and placed anywhere inside a
       PostScript::Simple page.

       Remember when using translate/scale/rotate that you will normally need to do the
       operations in the reverse order to that which you expect.

PREREQUISITES

       This module requires "PostScript::Simple", "strict", "Carp" and "Exporter".

   EXPORT
       None.

CONSTRUCTOR

       "new(options)"
           Create a new PostScript::Simple::EPS object. The options that can be set are:

           file
               EPS file to be included. This or "source" must exist when the "new" method is
               called.

           source
               PostScript code for the EPS document. Either this or "file" must be set when "new"
               is called.

           clip
               Set to 0 to disable clipping to the EPS bounding box. Default is to clip.

           Example:

               $ps = new PostScript::Simple(landscape => 1,
                                            eps => 0,
                                            xsize => 4,
                                            ysize => 3,
                                            units => "in");

               $eps = new PostScript::Simple::EPS(file => "test.eps");

               $eps->scale(0.5);

           Scale the EPS file by x0.5 in both directions.

               $ps->newpage();
               $ps->importeps($eps, 1, 1);

           Add the EPS file to the PostScript document at coords (1,1).

               $ps->importepsfile("another.eps", 1, 2, 4, 4);

           Easily add an EPS file to the PostScript document using bounding box (1,2),(4,4).

           The methods "importeps" and "importepsfile" are described in the documentation of
           "PostScript::Simple".

OBJECT METHODS

       All object methods return 1 for success or 0 in some error condition (e.g. insufficient
       arguments). Error message text is also drawn on the page.

       "get_bbox"
           Returns the EPS bounding box, as specified on the %%BoundingBox line of the EPS file.
           Units are standard PostScript points.

           Example:

               ($x1, $y1, $x2, $y2) = $eps->get_bbox();

       "width"
           Returns the EPS width, in PostScript points.

           Example:

             print "EPS width is " . abs($eps->width()) . "\n";

       "height"
           Returns the EPS height, in PostScript points.

           Example:

           To scale $eps to 72 points high, do:

             $eps->scale(1, 72/$eps->height());

       "scale(x, y)"
           Scales the EPS file. To scale in one direction only, specify 1 as the other scale. To
           scale the EPS file the same in both directions, you may use the shortcut of just
           specifying the one value.

           Example:

               $eps->scale(1.2, 0.8); # make wider and shorter
               $eps->scale(0.5);      # shrink to half size

       "rotate(deg)"
           Rotates the EPS file by "deg" degrees anti-clockwise. The EPS file is rotated about
           it's own origin (as defined by it's bounding box). To rotate by a particular co-
           ordinate (again, relative to the EPS file, not the main PostScript document), use
           translate, too.

           Example:

               $eps->rotate(180);        # turn upside-down

           To rotate 30 degrees about point (50,50):

               $eps->translate(50, 50);
               $eps->rotate(30);
               $eps->translate(-50, -50);

       "translate(x, y)"
           Move the EPS file by "x","y" PostScript points.

           Example:

               $eps->translate(10, 10);      # move 10 points in both directions

       "reset"
           Clear all translate, rotate and scale operations.

           Example:

               $eps->reset();

       "load"
           Reads the EPS file into memory, to save reading it from file each time if inserted
           many times into a document. Can not be used with "preload".

       "preload(object)"
           Experimental: defines the EPS at in the document prolog, and just runs a command to
           insert it each time it is used. "object" is a PostScript::Simple object. If the EPS
           file is included more than once in the PostScript file then this will probably shrink
           the filesize quite a lot.

           Can not be used at the same time as "load", or when using EPS objects defined from
           PostScript source.

           Example:

               $p = new PostScript::Simple();
               $e = new PostScript::Simple::EPS(file => "test.eps");
               $e->preload($p);

BUGS

       This is software in development; some current functionality may not be as expected, and/or
       may not work correctly.

AUTHOR

       The PostScript::Simple::EPS module was written by Matthew Newton, after prods for such a
       feature from several people around the world. A useful importeps function that provides
       scaling and aspect ratio operations was gratefully received from Glen Harris, and merged
       into this module.

       Copyright (C) 2002-2014 Matthew C. Newton

       This program is free software; you can redistribute it and/or modify it under the terms of
       the GNU General Public License as published by the Free Software Foundation, version 2.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU General Public License for more details, available at
       http://www.gnu.org/licenses/gpl.html.

SEE ALSO

       PostScript::Simple