putpec with pyglet [英] putpixel with pyglet

问题描述

我是pyglet的新手。我想在每个 on_draw 迭代中将像素从黑色更改为白色。因此，在1000次迭代之后，窗口中应该只有1000个白色像素。但是，我想避免在 on_draw 中调用1000个绘制操作。所以我想创建一个图像，在图像上做一个RGB putpixel，然后将图像blit到屏幕上。我怎样才能做到这一点？ pyglet文档，示例和源代码对此没有太大帮助。

I'm new to pyglet. I'd like to change a pixel from black to white at each on_draw iteration. So after 1000 iterations, there should be exactly 1000 white pixels in the window. However, I'd like to avoid calling 1000 draw operations in on_draw for that. So I'd like to create an image, do an RGB putpixel on the image, and blit the image to the screen. How can I do that? The pyglet documentation, the examples and the source code aren't too helpful on this.

推荐答案

因为没有人真的很好回答这个。

我会在这里放一个：

Since no one gave a really good answer to this.
I'll place one here:

import pyglet
from random import randint

width, height = 500, 500
window = pyglet.window.Window(width=width, height=height)
image = pyglet.image.SolidColorImagePattern((255,255,255,255)).create_image(width, height)

data = image.get_image_data().get_data('RGB', width*3)
new_image = b''

for i in range(0, len(data), 3):
    pixel = bytes([randint(0,255)]) + bytes([randint(0,255)]) + bytes([randint(0,255)])
    new_image += pixel

image.set_data('RGB', width*3, new_image)

@window.event
def on_draw():
    window.clear()
    image.blit(0, 0)

pyglet.app.run()

基本上，这就是它的作用吃了一张白色的图像，它本身可以在窗口中绘制。但看到我们想做 putpixel ，我已经修改了白色图像中的每个像素作为演示。

Essentially, what this does is it creates a white image, that in itself can be drawn in the window. But seeing as we want to do putpixel, i've modified every pixel in the white image as a demo.

可与以下交界处使用：

• https://pythonhosted.org/pyglet/api/pyglet.image.ImageData-class.html#get_region

• https://pythonhosted.org/pyglet/api/pyglet.image.ImageData-class.html#get_region

可以用来进一步确定图像处理。

Which can be used to optemize the image manipulation further.

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