问题描述
刚开始玩OpenSeadragon（非常好的顺便说一句）和创建自定义图块集我想知道创建具有重叠图块的优缺点是什么？
Just starting out playing with OpenSeadragon (very good btw) and on creating a custom tile set am wondering what the advantages or disadvantages of creating tiles with an overlap?
我尝试使用0似乎没问题，但我想知道是否有任何清晰度或性能优势或者瓷砖重叠（我认为DeepZoom格式使用4例如？）
I've tried using 0 and it seems ok, but I wonder if there are any clarity or performance advantages or having the tiles overlap (I think DeepZoom format uses 4 for example?)
感谢您提供任何指导！
推荐答案
优势在于当瓷砖放置在非瓷砖时使用子像素和插值 - 整数值。
The advantage is when using sub-pixeling and interpolation when the tiles are placed at non-integer values.
如果它们重叠一点（通常只是一个像素），它们将掩盖通常发生的微小间隙。
If they overlap a little (usually just a single pixel) they will camouflage the tiny gap that typically occur.
（右键单击并选择查看图像以查看大图）
(right-click and select "view image" to see larger version)
对于性能，人们倾向于至少使用可被4整除的宽度和高度（或64位为8），因为它们在内存中复制得更快，通常大小为2 （即32,64,128等）。另请参阅进行缩放。
For performance one would tend to at least use width and height divisible by 4 (or 8 for 64-bit) as these are faster to copy in memory, and often a size of 2 (ie. 32, 64, 128 etc.). Also see mip-mapping for zooming.
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