These are chat archives for openseadragon/openseadragon
The major issue right now I am looking into is-
I have used canvas for drawing freeform annotations, which get stretched on zooming the openseadragon image.
Because of this stretching, the linewidth of the annotation also gets stretched/increased on zooming. I don't want that.
I want to maintain the linewidth to, say, 5px for all the zoom levels.
Redrawing annotations on every zoom is not good performance-wise.
So I am trying to figure out way to achieve this with better performance.
No, I am not using the canvas overlay plugin.
But the freehand annotation gets me set of points that can be huge and I just connect all these points in sequence using line on canvas.
So the performance thing depends on number of points generated while drawing.
I will check the plugin.