photobot.Layer.pixels.update()
Syntax
canvas.layers[i].pixels.update()
Description
Updates the pixels array of layer i after it has been modified. To save time, changes to the Layer.pixels[] pixels array only take effect after calling this command.
Example
Remove all white pixels from the given image, with a feather at the edges of white areas:
photobot = ximport("photobot") canvas = photobot.canvas(200,200) canvas.layer("smurf.gif") w = canvas.layers[1].w feather = [-w-1, -w, -w+1, -1, 1, w-1, w, w+1] pixels = canvas.layers[1].pixels for i in range(len(pixels)): r, g, b, a = pixels[i] if r == g == b == 255: pixels[i] = r, g, b, 0 for j in feather: r, g, b, a = pixels[i+j] pixels[i+j] = r, g, b, a/2 pixels.update()
