NAME¶

Games::Go::Sgf2Dg::Dg2Ps - convert Games::Go::Sgf2Dg::Diagrams to PostScript

SYNOPSIS¶

use Games::Go::Sgf2Dg::Dg2Ps

 my $dg2ps = B<Games::Go::Sgf2Dg::Dg2Ps-E<gt>new> (options);
 $dg2ps->convertDiagram($diagram);

DESCRIPTION¶

Games::Go::Sgf2Dg::Dg2Ps converts a Games::Go::Sgf2Dg::Diagram into PostScript.

NEW¶

my $dg2ps = Games::Go::Sgf2Dg::Dg2Ps->new (?options?)

A new Games::Go::Sgf2Dg::Dg2Ps takes the following options:

boardSizeX => number

boardSizeY => number

Sets the size of the board.

Default: 19

doubleDigits => true | false

Numbers on stones are wrapped back to 1 after they reach 100. Numbers associated with comments and diagram titles are not affected.

Default: false

coords => true | false

Generates a coordinate grid.

Default: false

topLine => number (Default: 1)

bottomLine => number (Default: 19)

leftLine => number (Default: 1)

rightLine => number (Default: 19)

The edges of the board that should be displayed. Any portion of the board that extends beyond these numbers is not included in the output.

diaCoords => sub { # convert $x, $y to Diagram coordinates }

This callback defines a subroutine to convert coordinates from $x, $y to whatever coordinates are used in the Games::Go::Sgf2Dg::Diagram object. The default diaCoords converts 1-based $x, $y to the same coordinates used in SGF format files. You only need to define this if you're using a different coordinate system in the Diagram.

Default:
sub { my ($x, $y) = @_;
$x = chr($x - 1 + ord('a')); # convert 1 to 'a', etc
$y = chr($y - 1 + ord('a'));
return("$x$y"); }, # concatenate two letters

See also the diaCoords method below.

print => sub { my ($dg2tex, @tex) = @_; ... }

A user defined subroutine to replace the default printing method. This callback is called from the print method (below) with the reference to the Dg2TeX object and a list of lines that are part of the TeX diagram source.

Dg2Ps-specific options:

pageSize => 'page size'

May be one of:

topMargin => points

bottomMargin => points

leftMargin => points

rightMargin => points

Margins are set in PostScript 'user space units' which are approximately equivilent to points (1/72 of an inch).

Default for all margins: 72 * .70 (7/10s of an inch)

text_fontName => 'font' Default: 'Times-Roman',

stone_fontName => 'font' Default: 'Courier-Bold'

Text and stone fonts names may be one of these (case sensitive):

text_fontSize => points

The point size for the comment text. Diagram titles use this size plus 4, and the game title uses this size plus 6.

Default: 11

stone_fontSize => points

The stone_fontSize determines the size of the stones and diagrams. Stone size is chosen to allow up to three digits on a stone . The default stone_fontSize allows for three diagrams (with -coords) per 'letter' page if comments don't take up extra space below diagrams.

If doubleDigits is specified, the stones and board are slightly smaller (stone 100 may look a bit cramped).

Default: 5

lineWidth => points

lineHeight => points

The lineWidth and lineHeight determine the size of the stones and diagrams.

If lineWidth is not explicitly set, it is calculated from the stone_fontSize to allow up to three digits on a stone . The default stone_fontSize allows for three diagrams (with -coords) per 'letter' page if comments don't take up extra space below diagrams. If doubleDigits is specified, the stones and board are slightly smaller (stone 100 may look a bit cramped).

If lineHeight is not explicitly set, it will be 1.05 * lineWidth, creating a slightly rectangular diagram.

Default: undef - determined from stone_fontSize

ps_debug =#<gt> number from 0 to 2

When non-zero, code and subroutines are added to the PostScript output to help debug the PostScript file. This is very slightly documented in PostScript::File, but you'll probably need to read through the PostScript output to make any use of it.

Default: 0

METHODS¶

$dg2ps->configure (option => value, ?...?)

Change Dg2Ps options from values passed at new time.

my $coord = $dg2mp->diaCoords ($x, $y)

Provides access to the diaCoords option (see above). Returns coordinates in the converter's coordinate system for board coordinates ($x, $y). For example, to get a specific intersection structure:

    my $int = $diagram->get($dg2mp->diaCoords(3, 4));
    

$dg2ps->print ($text ? , ... ?)

prints raw PostScript code to file as defined at new time.

$dg2ps->printComment ($text ? , ... ?)

Adds $text to the diagram comments.

$dg2ps->comment ($comment ? , ... ?)

Inserts the PostScript comment character ('%') in front of each line of each comment and prints it to file.

Note that this is not the same as the printComment method.

my $canvas = $dg2ps->convertDiagram ($diagram)

Converts a Games::Go::Sgf2Dg::Diagram into PostScript.

my $converted_text = $dg2ps->convertText ($text)

Converts $text into text for display (handles PostScript escape sequences).

Returns the converted text.

$dg2ps->close

prints final PostScript code to the output file and closes the file.

SEE ALSO¶

sgf2dg(1)

Script to convert SGF format files to Go diagrams

BUGS¶

Bugs? In my code?