setop
/
python-escpos
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
python-escpos/examples/software_barcode.py

10 lines
193 B
Python
Raw Normal View History

First implementation of software barcode Actually the hardware barcode implementation is very specific and not generic enough for just adding a `soft_render=True` argument to it. This is a first work that can be improved with other commits, maybe for merging this method in the `barcode` method after some cleanup. The width, height and text_distance were set using empiric print-and-retry tests so that the generated barcode looks nice to the eye (and to the eye of an Android scanner tool. !WARNING! Printing a barcode that is too large in width will result in the printer to go crazy trying to print an image that is too large for it. This may be fixed by raising an exception in the `image` method.
2017-05-16 18:55:30 +00:00
from escpos.printer import Usb
PEP8 software barcode example
2017-05-22 18:25:51 +00:00
First implementation of software barcode Actually the hardware barcode implementation is very specific and not generic enough for just adding a `soft_render=True` argument to it. This is a first work that can be improved with other commits, maybe for merging this method in the `barcode` method after some cleanup. The width, height and text_distance were set using empiric print-and-retry tests so that the generated barcode looks nice to the eye (and to the eye of an Android scanner tool. !WARNING! Printing a barcode that is too large in width will result in the printer to go crazy trying to print an image that is too large for it. This may be fixed by raising an exception in the `image` method.
2017-05-16 18:55:30 +00:00
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Some software barcodes
p.soft_barcode('code128', 'Hello')
examples: software_barcode: fix too long code39 for 5890 printer
2020-05-10 12:04:25 +00:00
p.soft_barcode('code39', '1234')