<p>你有一套相当复杂的规则。我认为,如果您想要实现这种精确的行为,可能需要编写一些代码</p>
<p>我试图避免做任何实际工作,因此我编写了一个小python来为您布局页面:</p>
<pre class="lang-py prettyprint-override"><code>#!/usr/bin/python3
import sys
import math
import pyvips
column_width = 256
row_height = 256
background_colour = 255 # you could use eg. [128, 255, 128] as well
# pop enough tiles from the argument to fill a page
def layout(tiles):
# we insert an image (at its top-left), or "x" if a tile is covered by an
# image up and left of itself
page = [[None for x in range(3)] for y in range(3)]
# where we put the next tile
current_x = 0
current_y = 0
# loop to fill page
page_filled = False
while not page_filled:
# used up all the tiles?
if tiles == []:
break
this_tile = tiles[0]
tiles_across = math.ceil(this_tile.width / column_width)
tiles_down = math.ceil(this_tile.height / row_height)
# image too large for page
if tiles_across > 3 or tiles_down > 3:
raise Exception(f"tile too large - {this_tile}")
# loop to find the next free space this tile fits
while True:
# too tall for this column?
if tiles_down > 3 - current_y:
current_y = 0
current_x += 1
# too wide for this row?
if tiles_across > 3 - current_x:
# we've filled the page
page_filled = True
break
# is this set of tiles clear?
all_clear = True
for y in range(tiles_down):
for x in range(tiles_across):
if page[current_y + y][current_x + x]:
all_clear = False
if all_clear:
break
# try the next slot down
current_y += 1
# did we find a spot?
if not page_filled:
# place the tile here and mark the spaces it covers in the page
for y in range(tiles_down):
for x in range(tiles_across):
page[current_y + y][current_x + x] = "x"
page[current_y][current_x] = this_tile
tiles.pop(0)
# the page has filled -- draw!
image = pyvips.Image.black(3 * column_width, 3 * row_height) \
+ background_colour
for y in range(3):
for x in range(3):
if isinstance(page[y][x], pyvips.Image):
image = image.insert(page[y][x], \
x * column_width, y * row_height)
return image
# a source of tiles .. we just load the command-line arguments
all_tiles = [pyvips.Image.new_from_file(filename, access="sequential")
for filename in sys.argv[1:]]
page_number = 0
while all_tiles != []:
filename = f"page-{page_number}.jpg"
print(f"generating {filename} ...")
page = layout(all_tiles)
page.write_to_file(filename)
page_number += 1
</code></pre>
<p>您可以这样运行它:</p>
<pre><code>$ ./layout.py ~/pics/shark.jpg ~/pics/k2.jpg ~/pics/shark.jpg ~/pics/shark.jpg ~/pics/shark.jpg ~/pics/shark.jpg ~/pics/shark.jpg ~/pics/shark.jpg
generating page-0.jpg ...
generating page-1.jpg ...
$
</code></pre>
<p>它似乎对我有用,并且实现了你所有的规则(我想)。我使用<a href="https://pypi.org/project/pyvips/" rel="nofollow noreferrer">pyvips</a>来进行页面渲染,因为我对它很熟悉,但是将它换成其他东西很简单</p>