D3筆刷和縮放數據未顯示

Question

我有這張圖，它不顯示值，而僅顯示形狀。 我正在從后端和只有2個字段加載我的json對象。 任何幫助都將非常有意義。 月數

[{"Count":50,"Month":"February 2014"},{"Count":66,"Month":"March 2014"},{"Count":69,"Month":"April 2014"},{"Count":57,"Month":"May 2014"},{"Count":85,"Month":"June 2014"},{"Count":81,"Month":"July 2014"},{"Count":117,"Month":"August 2014"},{"Count":154,"Month":"September 2014"},{"Count":144,"Month":"October 2014"},{"Count":162,"Month":"November 2014"},{"Count":191,"Month":"December 2014"},{"Count":211,"Month":"January 2015"},{"Count":134,"Month":"February 2015"},{"Count":207,"Month":"March 2015"},{"Count":157,"Month":"April 2015"},{"Count":155,"Month":"May 2015"},{"Count":167,"Month":"June 2015"},{"Count":143,"Month":"July 2015"},{"Count":183,"Month":"September 2015"},{"Count":137,"Month":"August 2015"},{"Count":179,"Month":"October 2015"},{"Count":161,"Month":"November 2015"},{"Count":174,"Month":"December 2015"},{"Count":180,"Month":"January 2016"},{"Count":170,"Month":"February 2016"},{"Count":166,"Month":"March 2016"},{"Count":175,"Month":"April 2016"},{"Count":173,"Month":"May 2016"},{"Count":158,"Month":"June 2016"},{"Count":129,"Month":"July 2016"},{"Count":153,"Month":"August 2016"},{"Count":114,"Month":"September 2016"},{"Count":112,"Month":"October 2016"},{"Count":143,"Month":"November 2016"},{"Count":126,"Month":"December 2016"},{"Count":98,"Month":"January 2017"},{"Count":138,"Month":"February 2017"},

我從復制代碼

D3網站的鏈接

並更改此行

d3.csv("sp500.csv", type, function(error, data) {

至

d3.json('@Url.Action("GetStatistic", "JuraServicing")', function (error, data) {



 data = jsondata;
x.domain(d3.extent(data, function (d) { return d.Month; }));
 y.domain([0, d3.max(data, function (d) { return d.Count; })]);

它還顯示了我不明白的錯誤

d3.v4.min.js：2錯誤：屬性d：預期數字“ MNaN，NaNCNaN，NaN，...”。

這就是我得到的

Answer 1

我認為您還需要更新時間解析器。 這行：

var parseDate = d3.timeParse("%b %Y");

...解析日期為Jan 2001 ，但是您的日期為January 2001 。 您應將其更改為大寫的B，以表示完整的月份名稱：

var parseDate = d3.timeParse("%B %Y");

有關d3時間格式說明符的信息，請參見此頁面： https : //github.com/d3/d3-time-format#locale_format 。