Can labelme annotate squares?

[zhang13359]

I didn't find this feature in labelme

[minewilliam]

No there isn't.

It's a bit of a hack, but you can use the circle tool instead. The shape has a center position and a point somewhere on the circumference. It's not hard to make a square from circle annotations; Take the distance between the two points and multiply it by 2 the to get the (interpreted) square's size.

[wkentaro]

Maybe we could add a dialog or mode (e.g., shift+drag) to add square mode for the existing rectangle annotation.

[kancheng]

@wkentaro @zhang13359 @minewilliam

I have completed this feature; please test it.

#1745

[kancheng]

@zhang13359 @wkentaro @minewilliam

If needed, the feature can be tested in isolation by creating a clean conda environment and installing the branch directly via pip (e.g. from feature/draw-square).
This allows evaluation without affecting existing local setups.

conda create -n labelme-square python=3.10 -y
conda activate labelme-square
pip install git+https://github.com/kancheng/labelme.git@feature/draw-square

[kancheng]

@zhang13359 @wkentaro @minewilliam

• Support square drawing for rectangle shape #1748

Note: This implementation uses keyboard interaction to enable square-constrained rectangle drawing.

If needed, the feature can be tested in isolation by creating a clean conda environment and installing the branch directly via pip.
This allows evaluation without affecting existing local setups.

conda create -n labelme-square python=3.10 -y
conda activate labelme-square
pip install git+https://github.com/kancheng/labelme.git@feature/square-rectangle