Imager::Font::FreeType2(3pm) User Contributed Perl Documentation Imager::Font::FreeType2(3pm)NAME
Imager::Font::FreeType2 - low-level functions for FreeType2 text output
DESCRIPTION
Imager::Font creates a Imager::Font::FreeType2 object when asked to.
See Imager::Font to see how to use this type.
This class provides low-level functions that require the caller to perform data validation.
This driver supports:
transform()
dpi()
draw()
The following parameters:
o "utf8"
o "vlayout"
o "sizew"
Special behaviors
If you call transform() to set a transformation matrix, hinting will be switched off. This prevents sudden jumps in the size of the text
caused by the hinting when the transformation is the identity matrix. If for some reason you want hinting enabled, use
$font->hinting(hinting=>1) to re-enable hinting. This will need to be called after each call to transform().
AUTHOR
Addi, Tony
perl v5.14.2 2011-06-06 Imager::Font::FreeType2(3pm)
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Imager::Transform(3pm) User Contributed Perl Documentation Imager::Transform(3pm)NAME
Imager::Transform - a library of register machine image transformations
SYNOPSIS
# get a list of transformations
my @funcs = Imager::Transform->list;
# create a transformation object
my $tran = Imager::Transform->new($name);
# describe it
print $tran->describe;
# a list of constant names
my @constants = $tran->constants;
# information about some of the constants
my @info = $tran->constants(@constants);
DESCRIPTION
This module provides a library of transformations that use the Imager transform2() function.
The aim is to provide a place to collect these transformations.
At some point there might be an interface to add new functions, but there's not a whole lot of point to that.
The interface is a little sparse as yet.
METHODS
my @names = Imager::Transform->list
Returns a list of the transformations.
my $desc = Imager::Transform->describe($name);
my $desc = $tran->describe()
Describes a transformation specified either by name (as a class method) or by reference (as an instance method).
The class method returns undef if there is no such transformation.
my $tran = Imager::Transform->new($name)
Create a new transformation object. Returns undef if there is no such transformation.
my @inputs = $tran->inputs;
my $inputs = $tran->inputs;
Returns a list of input image descriptions, or the number of them, depending on content.
The list contains hash references, which current contain only one member, "desc", a description of the use of the input image.
$tran->constants
Returns a list of names of constants that can be set for the transformation.
$tran->constants($name, $name, ...)
Returns a hashref for each named constant, which contains the default in key "default" and a description in key "desc".
my $out = $tran->transform(\%opts, \%constants, @imgs)
Perform the image transformation.
Returns the new image on success, or undef on failure, in which case you can use $tran->errstr to get an error message.
$tran->errstr
The error message, if any from the last image transformation.
BUGS
Needs more transformations.
SEE ALSO Imager(3), transform.perl
perl v5.14.2 2011-06-06 Imager::Transform(3pm)
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