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Update README.txt

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Tony DiCola 2014-09-21 18:20:31 -07:00
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README.txt
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@ -1,16 +1,3 @@
Current additions:
- XBitMap support (*.xbm)
Use exported xbm files from GIMP with bitmap data directly in your sources.
(fits perfectly with SSD1306 library from Adafruit)
New function: Adafruit_GFX::drawXBitmap()
Usage: Export bitmap with GIMP as *.xbm file,
Rename the *.xbm to *.c,
Open file in editor,
Use C array directly in your sources.
----------------------------------
This is the core graphics library for all our displays, providing a common set of graphics primitives (points, lines, circles, etc.). It needs to be paired with a hardware-specific library for each display device we carry (to handle the lower-level functions).
Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!
@ -29,3 +16,7 @@ Useful Resources
- Image2Code
This is a handy Java GUI utility to convert a BMP file into the array code necessary to display the image with the drawBitmap function. Check out the code at ehubin's GitHub repository:
https://github.com/ehubin/Adafruit-GFX-Library/tree/master/Img2Code
- drawXBitmap function
You can use the GIMP photo editor to save a .xbm file and use the array saved in the file to draw a bitmap with the drawXBitmap function. See the pull request here for more details:
https://github.com/adafruit/Adafruit-GFX-Library/pull/31