function click()

in bits/opcache-instance-id.php [688:709]


        function click(d) {
            if (!d.children) return;

            kx = (d.y ? w - 40 : w) / (1 - d.y);
            ky = h / d.dx;
            x.domain([d.y, 1]).range([d.y ? 40 : 0, w]);
            y.domain([d.x, d.x + d.dx]);

            var t = g.transition()
                     .duration(d3.event.altKey ? 7500 : 750)
                     .attr("transform", function(d) { return "translate(" + x(d.y) + "," + y(d.x) + ")"; });

            t.select("rect")
             .attr("width", d.dy * kx)
             .attr("height", function(d) { return d.dx * ky; });

            t.select("text")
             .attr("transform", transform)
             .style("opacity", function(d) { return d.dx * ky > 12 ? 1 : 0; });

            d3.event.stopPropagation();
        }