Can't get roundJoin to work in qml.

[bclark]

I'm trying to draw some lines in qml on a canvas. When I have an angle of less than 20 degrees or so formed by the vertices of a polygon, the resulting geometry has a very pointy spike on the end of the angle, which protrudes past the actual vertex of the polygon.

I am trying to use RoundJoin to correct for that, but I can't seem to get the syntax right. There is no change to the behavior no matter what variations I try (unless I just create a syntax error).

import QtQuick.Shapes

ctx = getContext("2d");
ctx.joinStyle = ShapePath.RoundJoin;

Can anybody tell me what I'm doing wrong here?

Thanks.
bc