pyCairo堆栈图像 [英] pyCairo Stack images
问题描述
我正在使用pycairo合成图像.
I'm using pycairo to compose images.
目前,我正在从基本图像创建ImageSurface,并从此Surface设置上下文.
Currently I am creating my ImageSurface from a base image and setting a Context from this Surface.
surface = cairo.ImageSurface.create_from_png("base.png")
ctx = cairo.Context (surface)
然后我可以在顶部添加文本:
Then I can for example add text on top:
# draw text
ctx.select_font_face('Sans')
ctx.set_font_size(20)
ctx.move_to(10, 90)
ctx.set_source_rgb(1.00, 0.83, 0.00) # yellow
ctx.show_text('Hello World')
最后抚摸并保存
ctx.stroke()
surface.write_to_png('hello_world.png') # write to file
除了文本,我还需要加载其他图像,然后将其放在特定位置的基础图像之上.
Apart from text, I also need to load other images and put then on top of my base image at specific locations.
我应该根据新图像创建另一个表面,然后堆叠这些表面,还是可以像处理文本一样将新图像直接加载到特定位置的上下文中?
Should I create another surface from a new image and then stack the surfaces, or can I directly load the new image into the context at an specific location as I do with text?
推荐答案
您不能直接将图像加载到上下文中.您需要更多的表面.
You cannot directly load images into a context. You need more surfaces.
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