Implement a settings option in the image/video annotation tool that restricts coordinates to the image/video boundaries. While drawing a new annotation, the floating vertex beneath the mouse will not be able to leave the boundaries if the option is active.
Implement a settings option in the image/video annotation tool that restricts coordinates to the image/video boundaries. While drawing a new annotation, the floating vertex beneath the mouse will not be able to leave the boundaries if the option is active.