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README  view on Meta::CPAN

    The scale of the image can be changed for each barcode individually:

        $colissimo->barcode_image('8L20524752032', scale => 2);

    The default scale is set to 1, because that produces images with the
    right number of pixels to include them into PDF with PDF::API2, which
    uses 72dpi resolution for images unless you specify width and height
    explicitly (see PDF::API2::Content).

    The formula for calculating width in mm for a 72dpi resolution is as
    follows:

        (1px * 25.4) / 72dpi

    This fits into Colissimo's requirement for the basic module (narrowest
    element of the bar code) of 0.33 to 0.375 mm.

  logo
    Returns logo file name for selected service.

lib/Business/Colissimo.pm  view on Meta::CPAN

barcode individually:

    $colissimo->barcode_image('8L20524752032', scale => 2);

The default scale is set to 1, because that produces
images with the right number of pixels to include them
into PDF with L<PDF::API2>, which uses 72dpi resolution
for images unless you specify width and height explicitly
(see L<PDF::API2::Content>).

The formula for calculating width in mm for a 72dpi
resolution is as follows:

    (1px * 25.4) / 72dpi

This fits into Colissimo's requirement for the basic
module (narrowest element of the bar code) of 
0.33 to 0.375 mm.

=cut