3
我試圖爲包括省在內的荷蘭的D3和TopoJSON製作地圖。 這是代碼:topojson.js:187:Uncaught TypeError:無法讀取未定義的屬性'type'
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3 Test</title>
<script type="text/javascript" src="http://localhost/webserver/d3/d3.js"></script>
<script type="text/javascript" src="http://localhost/webserver/topojson/topojson.js"></script>
<style type="text/css">
div.bar {
display: inline-block;
width: 20px;
height: 75px;
background-color: teal;
margin-right: 2px;
}
.pumpkin {
fill: rgba(128, 0, 128, 0.75);
stroke: yellow;
stroke-width: 5;
}
.apple {
fill: rgba(0, 255, 0, 0.55);
stroke: green;
stroke-width: 15;
}
.orange {
fill: rgba(255, 255, 0, 0.55);
stroke: orange;
stroke-width: 10;
}
.subunit { fill: #cdc; }
.subunit-label {
fill: #777;
fill-opacity: .25;
font-size: 30px;
font-weight: 300;
text-anchor: middle;}
.provincie {fill: none; }
.Utrecht {fill: #ddd; }
.Zuid-Holland {fill: #dde; }
.Noord-Holland {fill: #dee; }
.Drenthe {fill: #aae; }
.Gelderland {fill: #eee; }
.Friesland {fill: #ddc; }
.Groningen {fill: #dcc; }
.Limburg {fill: #ccc; }
.Noord-Brabant {fill: #ddb; }
.Overijssel {fill: #dbb; }
.Zeeland {fill: #bbb; }
</style>
</head>
<body>
<script type="text/javascript">
var width = 960, height = 860;
var projection = d3.geo.albers()
.center([6, 49.40])
.rotate([0, -1.9])
.parallels([50, 60])
.scale(11000)
.translate([width/2, height/2]);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("http://localhost/webserver/data/nl.json", function(error, nl) {
svg.selectAll(".subunit")
.data(topojson.object(nl, nl.objects.subunits).geometries)
.enter().append("path")
.attr("class", function(d) { return "subunit " + d.id; })
.attr("d", path);
svg.selectAll(".subunit-label")
.data(topojson.object(nl, nl.objects.subunits).geometries)
.enter().append("text")
.attr("x", -20)
.attr("y", -50)
.attr("class", function(d) { return "subunit-label " + d.id; })
.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; })
.attr("dy", ".35em")
.text(function(d) { return d.properties.name; });
svg.selectAll(".provincie")
.data(topojson.object(nl, nl.objects.provincies).geometries)
.enter().append("path")
.attr("class", function(d) { return "provincie " + d.properties.name; })
.attr("d", path);
svg.append("path")
.datum(topojson.object(nl, nl.objects.places))
.attr("d", path)
.attr("class", "place");
svg.selectAll(".place-label")
.data(topojson.object(nl, nl.objects.places).geometries)
.enter().append("text")
.attr("class", "place-label")
.attr("transform", function(d) { return "translate(" + projection(d.coordinates) + ")"; })
.attr("dy", ".35em").text(function(d) { return d.properties.name; });
svg.selectAll(".place-label")
.attr("x", function(d) { return d.coordinates[0] > -1 ? 10 : -10; })
.style("text-anchor", function(d) { return d.coordinates[0] > -1 ? "start" : "end"; });
});
</script>
</body>
</html>
結果是荷蘭的地圖,但它不包含省(顏色和邊框)。
我得到以下錯誤:
遺漏的類型錯誤:無法讀取未定義topojson.js的特性 '類型':187
這是行186和187:
函數幾何(O) {
var t = o.type,g = t ===「GeometryCollection」? {type:t,geometries:o.geometries.map(geometry)}
感謝您的答案mbostock。我剛剛發現nl.json文件存在問題,並解決了問題。 – csnake 2013-03-20 18:41:48