Mihails Nikandrovs

Switching between Dash application tabs clears the annotations on a canvas

2

I have created two Dash tabs for my application and each tab has a canvas with a background image. When I annotate one canvas by drawing, for example, rectangles, and...

Adding background image with set opacity / Having two overlapping background images

2

I'm trying to use Dash canvas to do some radiographic film analysis. I first create a Dash canvas with the film image as a background. I then typically draw a...