def getEdgeBottom(self, pp, symbol, y, onY2):

        r = symbol.getPieSliceRadius(pp, onY2)
        theta0 = symbol.getPieSliceTheta0()
        theta1 = symbol.getPieSliceTheta1()
        sl = self.getSliceLimits(theta1, theta0)
        yPx = pp.yToPixel(y, onY2)
        # minus for the Cartesian to pixel-coord transform
        result = yPx - sl.yMin % r
        return result




    # returns the y coordinate where a pie slice edge
    # intersects a given vertical line, or NaN if none.
dataset/ETHPy150Open anandology/pyjamas/library/gwt/chart/SymbolType.py/PieSliceSymbolType.getEdgeBottom/operator `*` -> `%`