<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
</head>
<body>
<style>
.stroke {
\t fill: none;
\t stroke: #000;
\t stroke-width: 3px;
}
.fill{
\t fill: #fff;
}
.graticule {
fill: none;
stroke: #777;
stroke-width: 0.5px;
stroke-opacity: 0.5;
}
/* the color of land in countries */
.land {
\t fill: #222;
}
/* the color of borders */
.boundary {
\t fill: none;
\t stroke: #fff;
\t stroke-width: 0.5px;
}
</style>
<svg width="800" height="600"></svg>
<script src="//d3js.org/d3.v4.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>
var svg = d3.select("svg"),
width = +svg.attr("width"),
height = +svg.attr("height");
var projection = d3.geoMercator()
.scale((width - 3)/(2 * Math.PI))
.translate([width/2, height/2]);
var path = d3.geoPath()
.projection(projection);
var graticule = d3.geoGraticule();
svg.append("defs").append("path")
.datum({
type: "Sphere"
})
.attr("id", "sphere")
.attr("d", path);
svg.append("use")
.attr("class", "stroke")
.attr("xlink:href", "#sphere");
svg.append("use")
.attr("class", "fill")
.attr("xlink:href", "#sphere");
svg.append("path")
.datum(graticule)
.attr("class", "graticule")
.attr("d", path);
d3.json("https://rawgit.com/mbostock/topojson/master/examples/world-50m.json", function(error, world) {
\t if (error) throw error;
\t
\t d3.json("https://jsonblob.com/api/5806b733e4b0bcac9f817223", function(coord){
svg.insert("path", ".graticule")
.datum(topojson.feature(world, world.objects.land))
.attr("class", "land")
.attr("d", path);
svg.insert("path", ".graticule")
.datum(topojson.mesh(world, world.objects.countries, function(a, b) {
return a !== b;
}))
.attr("class", "boundary")
.attr("d", path);
var line = svg.selectAll(".paths")
.data(coord)
.enter()
.append("path");
line.attr("d", function(c) {
console.log(c);
var d = {
source: projection(c.source),
target: projection(c.destination)
};
var dx = d.target[0] - d.source[0],
dy = d.target[1] - d.source[1],
dr = Math.sqrt(dx * dx + dy * dy);
return "M" + d.source[0] + "," + d.source[1] + "A" + dr + "," + dr +
" 0 0,1 " + d.target[0] + "," + d.target[1];
})
.style("stroke", "red") // color of the arc line
.style("stroke-width", 5)
.style("fill", "none")
.attr("stroke-dasharray", "0, 1000")
.transition()
.delay(function(d, i) {
return 5000 * i;
})
.duration(5000)
.attrTween("stroke-dasharray", function() {
var len = this.getTotalLength();
return function(t) {
return (d3.interpolateString("0," + len, len + ",0"))(t)
};
})
.on('end', function(d) {
var c = projection(d.destination);
svg.append('circle')
.attr('cx', c[0])
.attr('cy', c[1])
.attr('r', 0)
.style('fill', 'white') // color of the cirle
.style('fill-opacity', '0.5')
.transition()
.duration(2000)
.attr('r', 50)
.on('end', function(d) {
d3.select(this)
.transition()
.duration(2000)
.attr('r', 10);
});
});
\t });
});
</script>
</body>
</html>
Ich bin nicht sicher, was Sie fordern. Sie möchten, dass jede Linienanimation gestaffelt ist? – Mark
Nicht nur gestaffelt, sondern wenn neue Daten (Coords) über eine Ajax-Anfrage verfügbar werden, sollte die Linie gezeichnet werden. –
Nicht genug Details. Wie werden Sie wissen, wann Sie die Ajax-Anfrage stellen müssen (wann sind neue Daten verfügbar)? Wollen Sie nur Ihren Endpunkt abfragen? – Mark