layer.pixelAlign()

Round the x and y values of this layer to whole numbers. Allows you to snap layers on the pixel. This is useful when dynamically centering layers.
译：园这一层的x和y值的整数。允许您在像素上单元图层。这是有用的动态定心层。

layerA = new Layer
    x: 100.18293
    y: 10.12873

layerA.pixelAlign()

print layerA.x, layerA.y
# Output: 100, 10