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4d-plugin-data-matrix

Barcode generator based on libdmtx 0.7.5.

Syntax

miyako.github.io

Uses libpng or libjpeg to create native images. PNG offers the best in terms of size and quality, because the colorspace is PNG_COLOR_TYPE_PALETTE. JPEG colorspace is JCS_GRAYSCALE, with quality 100, which is not as small as PNG. SVG, by contrast, is large but easier to post-process in 4D.

Examples

$moduleSize:=2
$margin:=2
$DPI:=96
$data:=""  //out param (svg source code)
$value:="18000000011522042528120000355250541000002277743896"
$image:=DMTX ($value;DMTX Format PNG;DMTX Scheme ASCII;$moduleSize;DMTX Symbol 16x48;$margin;$DPI;$data)
$image:=$image/$image/$image/$image
$text:=DMTX Read image ($image;$texts)

$moduleSize:=2
$margin:=2
$DPI:=96
$data:=""
$value:="18000000011522042528120000355250541000002277743896"
$image:=DMTX ($value;DMTX Format JPG;DMTX Scheme ASCII;$moduleSize;DMTX Symbol 16x48;$margin;$DPI;$data)
$jpg_size:=Picture size($image)  //4,701 (not as small because it is grayscale)
$jpg_base64_size:=Length($data)  //6,355
WRITE PICTURE FILE(System folder(Desktop)+"sample_dmtx.jpg";$image;".jpg")
$image:=DMTX ($value;DMTX Format PNG;DMTX Scheme ASCII;$moduleSize;DMTX Symbol 16x48;$margin;$DPI;$data)
$png_size:=Picture size($image)  //314 (very small because we use palette)
$png_base64_length:=Length($data)  //425
WRITE PICTURE FILE(System folder(Desktop)+"sample_dmtx.png";$image;".png")
$image:=DMTX ($value;DMTX Format SVG;DMTX Scheme ASCII;$moduleSize;DMTX Symbol 16x48;$margin;$DPI;$data)
$svg_size:=Picture size($image)  //260,594 (very large because it is text) 
$svg_xml_length:=Length($data)  //260,594
WRITE PICTURE FILE(System folder(Desktop)+"sample_dmtx.svg";$image;".svg")