Cropper empty space

[mridulbarman027]

Describe the bug
While rotating image its showing the empty spaces inside the cropper.

[ValentinH]

This is not a bug but the expected behaviour.

What would you expect instead of this?

[mridulbarman027]

Its shoud auto zoom in photo so that it fills the empty space in photos and prevent any empty spaces while rotating. You can check other editors for reference.

[ValentinH]

I see your point. The behaviour you expect could be added as a new option (that could be defaulted to "no empty space" in a future major version).

That being said, we need to implement the logic to automatically set the right zoom level based on the rotation. This is not trivial and requires some math/geometry investigation. Are you willing to have a look into this and create a PR?

[mathedu4all]

Given position and rotation of image, we can calculate the min scale ensure the boundary of image and canvas have no intersections.

[ssffss123]

我明白你的意思。你期望的行为可以添加为新选项（在未来的主要版本中可以默认为“无空白”）。

话虽如此，我们需要实现逻辑以根据旋转自动设置正确的缩放级别。这并非易事，需要进行一些数学/几何研究。你愿意研究一下这个问题并创建 PR 吗？

Trim the blank image and there will be nothing in the image that will be trimmed on the browser of the iOS phone.