我按照这个例子创建了一个美国各州的d3地图:
http://bl.ocks.org/mbostock/4699541
并在此SO问题后添加标记:
问题是在缩放时,地图标记保持不变.我相信我需要将它们转化为新的位置,但不确定如何实现这一目标.
var width = 900,
height = 500,
active = d3.select(null);
var projection = d3.geo.albersUsa()
.scale(1000)
.translate([width / 2, height / 2]);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select(".rebates").append("svg")
.attr("width", width)
.attr("height", height);
svg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.on("click", reset);
var g = svg.append("g")
.style("stroke-width", "1.5px");
d3.json("/files/d3-geo/us.json", function(error, us) {
if (error) { throw error; }
g.selectAll("path")
.data(topojson.feature(us, us.objects.states).features)
.enter().append("path")
.attr("d", path)
.attr("class", function(item) {
return window.US_STATES[item.id].water_authorities > 0 ? 'avail' : …Run Code Online (Sandbox Code Playgroud)