General Dg2 Converter Options:¶

boardSize => 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 Games::Go::Diagram coordinates }

This callback defines a subroutine to convert coordinates from $x, $y to whatever coordinates are used in the Games::Go::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

file => 'filename' | $descriptor | \$string | \@array

If file is defined, the ASCII diagram is dumped into the target. The target can be any of:

print => sub { my ($dg2ascii, @lines) = @_; ... }

A user defined subroutine to replace the default printing method. This callback is called from the print method (below) with the reference to the Dg2ASCII object and a list of lines that are part of the ASCII diagram lines.

$dg2tex->configure (option => value, ?...?)

Change Dg2TeX options from values passed at new time.

$dg2ascii->print ($text ? , ... ?)

prints the input $text directly to file as defined at new time. Whether or not file was defined, print accumulates the $text for later retrieval with converted.

my $ascii = $dg2ascii->converted ($replacement)

Returns the entire ASCII diagram converted so far for the Dg2ASCII object. If $replacement is defined, the accumulated ASCII is replaced by $replacement.

$dg2ascii->comment ($comment ? , ... ?)

Inserts the comment character (which is nothing for ASCII) in front of each line of each comment and prints it to file.

my $dg2ascii->convertDiagram ($diagram)

Converts a Games::Go::Diagram into ASCII. If file was defined in the new method, the ASCII is dumped into the file. In any case, the ASCII is returned as a string scalar.

my $ascii = $dg2ascii->convertText ($text)

Converts $text into ASCII code - gee, that's not very hard. In fact, this method simply returns whatever is passed to it. This is really just a place-holder for more complicated converters.

Returns the converted text.

$title = $dg2ascii->convertProperties (\%sgfHash)

convertProperties takes a reference to a hash of properties as extracted from an SGF file. Each hash key is a property ID and the hash value is a reference to an array of property values: $hash->{propertyId}->[values]. The following SGF properties are recognized:

$dg2ascii->close

prints any final text to the diagram (currently none) and closes the dg2ascii object. Also closes file if appropriate.