base.py 文件源码

def __init__(self, width: int, height: int, xoff=0, yoff=0, zoff=0,
                 scale=1, buffer=0, background='#FFFFFF', center=True):
        self.width = width
        self.height = height
        self.minx = xoff
        self.miny = yoff
        self.base_z = zoff
        self.scale = scale
        self.orig_buffer = buffer
        self.buffer = int(math.ceil(buffer*self.scale))
        self.background = background

        self.maxx = self.minx + width / scale
        self.maxy = self.miny + height / scale

        # how many pixels around the image should be added and later cropped (otherwise rsvg does not blur correctly)
        self.buffer = int(math.ceil(buffer*self.scale))
        self.buffered_width = self.width + 2 * self.buffer
        self.buffered_height = self.height + 2 * self.buffer
        self.buffered_bbox = box(self.minx, self.miny, self.maxx, self.maxy).buffer(buffer, join_style=JOIN_STYLE.mitre)

        self.background_rgb = tuple(int(background[i:i + 2], 16)/255 for i in range(1, 6, 2))