Orthographic Transition III

Part 1 of the transition works fine!

<!DOCTYPE html>
<meta charset="utf-8">
    <body>

var width = $(window).width() - 16,
            height = width,
            graticule = d3.geo.graticule(),
            norman = [-97.44, 35.22], //35.2200° N, 97.4400° W norman
            tunisia = [9, 34], //34.0000° N, 9.0000° E tunisia
            delay = 1000,
            duration = 3000;

var projection = d3.geo.orthographic()
            .scale(width / 2)
            .clipAngle(90)
            .translate([width / 2, height / 2]);

var canvas = d3.select("body").append("canvas")
            .attr("width", width)
            .attr("height", height);

var context = canvas.node().getContext("2d");

var path = d3.geo.path()
            .projection(projection)
            .context(context);

d3.json("world.json", function(error, world) {

var countries = topojson.feature(world, world.objects.countries),
                land = topojson.feature(world, world.objects.land),
                grid = graticule(),
                globe = {type:"Sphere"};

function projrotate(array){

projection.rotate([-array[0], -array[1]]);

}

function draw() {

context.beginPath();
                path(countries);
                context.fillStyle = "#000";
                context.fill();
                context.strokeStyle = "#fff";
                context.stroke();

context.beginPath();
                path(globe);
                context.lineWidth = 2;
                context.strokeStyle = "#000";
                context.stroke();

context.beginPath();
                path(grid);
                context.lineWidth = .5;
                context.strokeStyle = "#bbb";
                context.stroke();

};

projrotate(tunisia)
            draw();

( function transition() {

d3.transition()
                    .delay(delay)
                    .duration(duration)
                    .tween("rotate", function() {

var r = d3.interpolate(projection.rotate(), [-norman[0], -norman[1]]);

return function(t) {

projection.rotate(r(t));
                            context.clearRect(0, 0, width, height);
                            draw();

}

})
                    .transition()

}) ();

});

}) ();
    </script>

Modified http://d3js.org/d3.v3.min.js to a secure url

Modified http://d3js.org/topojson.v1.min.js to a secure url

https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js

https://d3js.org/d3.v3.min.js

https://d3js.org/topojson.v1.min.js