Imagemagick-在平铺的蒙太奇中移动/偏移图像? [英] Imagemagick - move/offset images within a tiled montage?

问题描述

考虑以下示例(Ubuntu 18.04，ImageMagick 6.9.7-4 Q16 x86_64 20170114):

Consider this example (Ubuntu 18.04, ImageMagick 6.9.7-4 Q16 x86_64 20170114):

convert -size 300x100 xc:red red.png
convert -size 100x100 xc:blue blue.png
montage red.png blue.png -frame 5 -geometry '+0+0' -tile 1x redblue.png

这给出了以下图像:

我想做的是将蓝色方块在其图块内"移动到任意x位置；例如，将蓝色正方形的左边缘对齐到红色矩形宽度的25％或50％处，或者甚至将蓝色正方形的右边缘与红色矩形的右边对齐.

What I'd like to do, is move the blue square on arbitrary x position "within its tile"; say align left edge of blue square to where 25% of the red rectangle width would be, or at 50% - or even align right edge of blue square with right edge of red rectangle.

我已经看到-tile-offset存在( https://imagemagick.org/script/command-line-options.php#tile-offset )，而我在此示例中进行了尝试，但看起来并没有执行任何操作.

I have seen that -tile-offset exists (https://imagemagick.org/script/command-line-options.php#tile-offset), and I've tried it with this example, but it doesn't look like it does anything.

如何在ImageMagick蒙太奇图像的一部分内移动图像?

How can I move an image, part of a ImageMagick montage, within its tile?

看起来-tile-offset只能为显式图块图像指定(不是-tile 1x，而是-tile red.png)，并且:

it looks like -tile-offset can only be specified for explicit tile images (not as in -tile 1x, but as in -tile red.png), and:

-tile-offset必须在平铺之前.它表示单个全局偏移量，而不是拼贴的间距.

-tile-offset must come before the tiling. It represents a single global offset, not the spacing for the tiling.

这是一个例子:

convert -size 300x100 radial-gradient:\#400-\#FAA red.png
convert -size 500x500 xc: -tile-offset +100+40 +size -tile red.png  -border 5 -geometry +5+5  -draw "color 0,0 reset" out.png

然后是out.png(单击以查看完整图像):

then out.png is this (click for full image):

...以便澄清-我想知道是否可以像在montage tile 1x

... so to clarify - I'd like to know is its possible to move an image within a tile as obtained in montage tile 1x

推荐答案

如注释中所建议:

convert -background none red.png \( -size 25x xc:none blue.png +append \) -append result.png

或具有2个不同的偏移量:

Or with 2 different offsets:

convert -background none red.png            \
   \( -size 25x xc:none blue.png +append \) \
   \( -size 50x xc:none blue.png +append \) \
   -append result.png

不确定最终目标是什么，但是您也可以执行以下操作:

Not sure what your end-goal is, but you can also do this:

convert -gravity east -background none red.png blue.png red.png blue.png -append result.png

或者这个:

convert -gravity center -background none red.png blue.png red.png blue.png -append result.png

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