From 6a2673d01dd981a073b6a98a108cd8a29c7bcf85 Mon Sep 17 00:00:00 2001 From: Patrick Kanzler Date: Thu, 28 Apr 2016 21:57:57 +0200 Subject: [PATCH] DOC extend image-docstring --- escpos/escpos.py | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/escpos/escpos.py b/escpos/escpos.py index 3e97216..33cd6c9 100644 --- a/escpos/escpos.py +++ b/escpos/escpos.py @@ -52,8 +52,24 @@ class Escpos(object): def image(self, img_source, high_density_vertical=True, high_density_horizontal=True, impl="bitImageRaster"): """ Print an image + You can select whether the printer should print in high density or not. The default value is high density. + When printing in low density, the image will be stretched. + + Esc/Pos supplies several commands for printing. This function supports three of them. Please try to vary the + implementations if you have any problems. For example the printer `IT80-002` will have trouble aligning + images that are not printed in Column-mode. + + The available printing implementations are: + + * `bitImageRaster`: prints with the `GS v 0`-command + * `graphics`: prints with the `GS ( L`-command + * `bitImageColumn`: prints with the `ESC *`-command + :param img_source: PIL image or filename to load: `jpg`, `gif`, `png` or `bmp` - + :param high_density_vertical: print in high density in vertical direction *default:* True + :param high_density_horizontal: print in high density in horizontal direction *default:* True + :param impl: choose image printing mode between `bitImageRaster`, `graphics` or `bitImageColumn` + """ im = EscposImage(img_source)