function mouseOverArc(d) {                
    tooltip.html(format_description(d));
    newSlice.style("opacity", 0.4);
    d3.select(this).transition()
        .duration(1)
        .style("opacity", 1);
    return tooltip.transition()
        .duration(0)
        .style("opacity", 0.9);
    }
// Opacity changes to highlight the tooltip more

Opacity changes to highlight the tooltip more
Opacity changes to highlight the tooltip more
function mouseOverArc(d) {                
    tooltip.html(format_description(d));
    newSlice.style("opacity", 0.4);
    d3.select(this).transition()
        .duration(1)
        .style("opacity", 1);
    return tooltip.transition()
        .duration(0)
        .style("opacity", 0.9);
    }
function mouseOverArc ( d ) { tooltip . html ( format_description ( d ) ) ; newSlice . style ( "opacity" , 0.4 ) ; d3 . select ( this ) . transition ( ) . duration ( 1 ) . style ( "opacity" , 1 ) ; return tooltip . transition ( ) . duration ( 0 ) . style ( "opacity" , 0.9 ) ; }
Opacity changes to highlight the tooltip more
Opacity changes to highlight the tooltip more