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Merge pull request #817 from wiredfool/draw_docs

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ImageDraw doc update
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Hugo 2014-07-23 13:59:46 +03:00
commit 0f6d77a141
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docs/reference/ImageDraw.rst
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@ -74,6 +74,34 @@ To load a OpenType/TrueType font, use the truetype function in the
:py:mod:`~PIL.ImageFont` module. Note that this function depends on third-party
libraries, and may not available in all PIL builds.
Example: Draw Partial Opacity Text
----------------------------------
.. code-block:: python
from PIL import Image, ImageDraw, ImageFont
# get an image
base = Image.open('Pillow/Tests/images/lena.png').convert('RGBA')
# make a blank image for the text, initialized to transparent text color
txt = Image.new('RGBA', base.size, (255,255,255,0))
# get a font
fnt = ImageFont.truetype('Pillow/Tests/fonts/FreeMono.ttf', 40)
# get a drawing context
d = ImageDraw.Draw(txt)
# draw text, half opacity
d.text((10,10), "Hello", font=fnt, fill=(255,255,255,128))
# draw text, full opacity
d.text((10,60), "World", font=fnt, fill=(255,255,255,255))
out = Image.alpha_composite(base, txt)
out.show()
Functions
---------
@ -83,6 +111,13 @@ Functions
Note that the image will be modified in place.
:param im: The image to draw in.
:param mode: Optional mode to use for color values. For RGB
images, this argument can be RGB or RGBA (to blend the
drawing into the image). For all other modes, this argument
must be the same as the image mode. If omitted, the mode
defaults to the mode of the image.
Methods
-------