Scale drawings on canvas while zooming

[ddaanniiieeelll]

Hello,
I'm working on a little tool that highlights the points of a contour when they are exactly on a metric line.
It works well only that when you scale the glyph the highlights don't.

As you can see it only works in a specific zoom level.
Sadly I can't seem to find out how to do this, so any help would be much appreciated.

I draw them like that

def highlightPoints(self, info):
        if not self.w.showPoints.get():
            return

        glyph = info["glyph"]

        asc = f.info.ascender
        xhe = f.info.xHeight
        cap = f.info.capHeight
        dsc = f.info.descender
        size = 8
        # draw highlight
        if glyph is not None:
            for c in glyph:
                for s in c:
                    for p in s:
                        if p.y == asc or p.y == xhe or p.y == cap or p.y == dsc or p.y == 0:

                            fill(None)
                            stroke(1, 0, 0, .6)
                            strokeWidth(2)
                            rect(p.x-size/2, p.y-size/2, size, size

[ddaanniiieeelll]

Works great!
Thanks a lot :)

[gferreira]

hello @daniel,

you can get the zoom level (drawing scale) from the notification:

s = info["scale"]

…and then use it to scale your drawing.