我在D3中制作了很多地图并且从未出现过这个问题，输出很小，你无法看到它。我已经包含了一个小的geojson文件，可以使用各种其他工具（e.g. here）轻松查看。
似乎没有使用d3.geoPath（）正确设置投影。 The API指定d3.geoPath（）采用投影参数，但是当我尝试使用此方法设置投影时（如下例所示），生成的地图未正确投影。只有在我使用d3.geoPath（）。projection（）方法设置投影后才能获得正确的结果。
这是文档中的错误还是我遗漏了什么？
//setup and map parameters
var height = 300;
var width = 300;
var projection = d3.geoAlbers().scale(1000).translate([width/2, height/2]);
var path = d3.geoPath(projection);
//geoJSON data
var geojson =
{"type":"FeatureCollection","features":[
{"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[-86.910592,33.536105],[-86.907192,33.542204999999996],[-86.90539199999999,33.541305],[-86.901608,33.543456],[-86.895692,33.548805],[-86.89249199999999,33.550404],[-86.888392,33.549304],[-86.879772,33.553267999999996],[-86.868549,33.553418],[-86.8651,33.557134999999995],[-86.856129,33.562064],[-86.85159499999999,33.559404],[-86.848891,33.559805],[-86.852991,33.552104],[-86.85519099999999,33.543904999999995],[-86.855694,33.538151],[-86.860817,33.53405],[-86.850509,33.535693],[-86.83124699999999,33.544767],[-86.827029,33.534708],[-86.82383999999999,33.533389],[-86.826703,33.528081],[-86.826807,33.521107],[-86.822808,33.514319],[-86.81474899999999,33.502386],[-86.81411899999999,33.500078],[-86.816041,33.496234],[-86.823825,33.488839],[-86.825743,33.485408],[-86.82772299999999,33.477393],[-86.828558,33.472626999999996],[-86.82791,33.46967],[-86.833503,33.467552999999995],[-86.839366,33.463845],[-86.841534,33.460941],[-86.842309,33.465699],[-86.849758,33.466302],[-86.861663,33.456759],[-86.869367,33.4514],[-86.87749699999999,33.449382],[-86.884293,33.445453],[-86.88948599999999,33.441072999999996],[-86.890131,33.438437],[-86.899491,33.434508],[-86.908391,33.429308],[-86.922929,33.415512],[-86.925484,33.419897999999996],[-86.93114299999999,33.422801],[-86.93749199999999,33.421608],[-86.945352,33.425982999999995],[-86.946468,33.428407],[-86.937809,33.435314],[-86.925764,33.449968999999996],[-86.920859,33.454651999999996],[-86.92215,33.456643],[-86.927679,33.453849999999996],[-86.932965,33.449332],[-86.935435,33.446132],[-86.94133699999999,33.442150999999996],[-86.941301,33.445651999999995],[-86.942842,33.450103],[-86.946817,33.45017],[-86.95131599999999,33.45181],[-86.950279,33.458104],[-86.945494,33.463234],[-86.929693,33.478538],[-86.92935299999999,33.479858],[-86.920255,33.492874],[-86.92450699999999,33.493904],[-86.93110999999999,33.496843],[-86.933543,33.494935999999996],[-86.94144999999999,33.494743],[-86.944717,33.495934],[-86.946237,33.502279],[-86.946224,33.506071],[-86.941811,33.507621],[-86.937693,33.512206],[-86.92634,33.512381999999995],[-86.917255,33.517139],[-86.915435,33.519832],[-86.908779,33.518958999999995],[-86.903385,33.516537],[-86.898659,33.520165999999996],[-86.894459,33.526136],[-86.896992,33.530504],[-86.910592,33.536105]]]},"properties":{"a":1}}
]}
var svg = d3.select("#map");
svg.selectAll("path").data(geojson.features).enter().append("path").attr("fill","red").attr("d", path);<script src="https://d3js.org/d3.v4.min.js"></script>
<svg height="300px" width="300px" id="map"> </svg>
答案 0 :(得分：3)
您需要正确设置投影参数。比例因子为1 000很小，以显示一个小区域，如您的示例。比例因子为50 000可能更合适。您还需要正确居中地图。
您需要在要素中心附近找到一个点才能使地图正确居中。您可以使用google earth或其他方法手动执行此操作以查找地理坐标中的路径质心（不是svg坐标;但是，您可以通过翻译功能找到svg质心来优化投影，我没有使用这种方法在我的回答中）。
使用Albers投影，您应该以y轴为中心并在x轴上旋转：
var projection = d3.geoAlbers()
.rotate([-x,0])
.center([0,y])
.scale(k)
.translate([width/2,height/2])
您想要使用中央子午线的负数，因为您在地图下旋转地球。有关Albers参数的更多图形说明，请参阅this answer
d3中的Albers投影具有默认的中心和旋转坐标。如果您不设置旋转和居中的中心坐标，地图将保留默认参数，以显示整个美国;这将修改预期的投影。其他预测一般以d3中的[0,0]为中心，默认情况下位于非洲沿海地区。
我用谷歌地球在这个投影中使用了一个中心坐标。我在这里使用的中心点是：
86.884 degrees West (-86.884 degrees East)
33.507 degress North
我还使用100 000而不是1 000放大了比原始缩放系数更远的位置。以下是显示数据的预测：
//setup and map parameters
var height = 300;
var width = 300;
var projection = d3.geoAlbers()
.scale(100000)
.translate([width/2, height/2])
.rotate([86.884,0])
.center([0,33.507]);
var path = d3.geoPath(projection);
//geoJSON data
var geojson =
{"type":"FeatureCollection","features":[
{"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[-86.910592,33.536105],[-86.907192,33.542204999999996],[-86.90539199999999,33.541305],[-86.901608,33.543456],[-86.895692,33.548805],[-86.89249199999999,33.550404],[-86.888392,33.549304],[-86.879772,33.553267999999996],[-86.868549,33.553418],[-86.8651,33.557134999999995],[-86.856129,33.562064],[-86.85159499999999,33.559404],[-86.848891,33.559805],[-86.852991,33.552104],[-86.85519099999999,33.543904999999995],[-86.855694,33.538151],[-86.860817,33.53405],[-86.850509,33.535693],[-86.83124699999999,33.544767],[-86.827029,33.534708],[-86.82383999999999,33.533389],[-86.826703,33.528081],[-86.826807,33.521107],[-86.822808,33.514319],[-86.81474899999999,33.502386],[-86.81411899999999,33.500078],[-86.816041,33.496234],[-86.823825,33.488839],[-86.825743,33.485408],[-86.82772299999999,33.477393],[-86.828558,33.472626999999996],[-86.82791,33.46967],[-86.833503,33.467552999999995],[-86.839366,33.463845],[-86.841534,33.460941],[-86.842309,33.465699],[-86.849758,33.466302],[-86.861663,33.456759],[-86.869367,33.4514],[-86.87749699999999,33.449382],[-86.884293,33.445453],[-86.88948599999999,33.441072999999996],[-86.890131,33.438437],[-86.899491,33.434508],[-86.908391,33.429308],[-86.922929,33.415512],[-86.925484,33.419897999999996],[-86.93114299999999,33.422801],[-86.93749199999999,33.421608],[-86.945352,33.425982999999995],[-86.946468,33.428407],[-86.937809,33.435314],[-86.925764,33.449968999999996],[-86.920859,33.454651999999996],[-86.92215,33.456643],[-86.927679,33.453849999999996],[-86.932965,33.449332],[-86.935435,33.446132],[-86.94133699999999,33.442150999999996],[-86.941301,33.445651999999995],[-86.942842,33.450103],[-86.946817,33.45017],[-86.95131599999999,33.45181],[-86.950279,33.458104],[-86.945494,33.463234],[-86.929693,33.478538],[-86.92935299999999,33.479858],[-86.920255,33.492874],[-86.92450699999999,33.493904],[-86.93110999999999,33.496843],[-86.933543,33.494935999999996],[-86.94144999999999,33.494743],[-86.944717,33.495934],[-86.946237,33.502279],[-86.946224,33.506071],[-86.941811,33.507621],[-86.937693,33.512206],[-86.92634,33.512381999999995],[-86.917255,33.517139],[-86.915435,33.519832],[-86.908779,33.518958999999995],[-86.903385,33.516537],[-86.898659,33.520165999999996],[-86.894459,33.526136],[-86.896992,33.530504],[-86.910592,33.536105]]]},"properties":{"a":1}}
]}
var svg = d3.select("#map");
svg.selectAll("path").data(geojson.features).enter().append("path").attr("fill","red").attr("d", path);<script src="https://d3js.org/d3.v4.min.js"></script>
<svg height="300px" width="300px" id="map"> </svg>