[英]Why won't this json file load with d3 in Meteor [ubuntu]?
我正在尝试在ubuntu的Meteor中重现此d3世界之旅,但似乎d3没有正确加载json或其他内容。 我从几个不同的位置尝试过json和tsv文件: https : //github.com/KoGor/Maps.GeoInfo,https : //github.com/mapmeld/flightmap ,并尝试对文件执行fromdos
。 一切似乎都可以正常工作,只是在我尝试运行它时出现错误“ SyntaxError:Unexpected Token <”。 tsv和json文件位于/ public / geo中
我的js文件:
if (Meteor.isServer) {
Meteor.startup(function () {
// code to run on server at startup
});
}
if (Meteor.isClient) {
Template.map.rendered = function() {
var width = 960,
height = 500;
var projection = d3.geo.orthographic()
.scale(248)
.clipAngle(90);
var canvas = d3.select("body").append("canvas")
.attr("width", width)
.attr("height", height);
var c = canvas.node().getContext("2d");
var path = d3.geo.path()
.projection(projection)
.context(c);
var title = d3.select("h1");
queue()
.defer(d3.json, "/geo/world-110m.json")
.defer(d3.tsv, "/geo/world-country-names.tsv")
.await(ready);
function ready(error, world, names) {
if (error) return console.warn(error);
var globe = {type: "Sphere"},
land = topojson.feature(world, world.objects.land),
countries = topojson.feature(world, world.objects.countries).features,
borders = topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }),
i = -1,
n = countries.length;
countries = countries.filter(function(d) {
return names.some(function(n) {
if (d.id == n.id) return d.name = n.name;
});
}).sort(function(a, b) {
return a.name.localeCompare(b.name);
});
(function transition() {
d3.transition()
.duration(1250)
.each("start", function() {
title.text(countries[i = (i + 1) % n].name);
})
.tween("rotate", function() {
var p = d3.geo.centroid(countries[i]),
r = d3.interpolate(projection.rotate(), [-p[0], -p[1]]);
return function(t) {
projection.rotate(r(t));
c.clearRect(0, 0, width, height);
c.fillStyle = "#bbb", c.beginPath(), path(land), c.fill();
c.fillStyle = "#f00", c.beginPath(), path(countries[i]), c.fill();
c.strokeStyle = "#fff", c.lineWidth = .5, c.beginPath(), path(borders), c.stroke();
c.strokeStyle = "#000", c.lineWidth = 2, c.beginPath(), path(globe), c.stroke();
};
})
.transition()
.each("end", transition);
})();
}
}
}
我如何才能正确加载json文件,或如何使示例在流星中工作?
请注意,您必须将.json(和.tsv)放入Meteor项目的公共文件夹中,因为它们是静态资产。
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