Javascript D3.js - 无法读取未定义的属性“轴”
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D3.js - Cannot read property 'axis' of undefined
提问by cmplx96
Here is my code snippet:
这是我的代码片段：
var xScale = d3.scaleLinear().range([MARGINS.left, WIDTH - MARGINS.right]).domain([scaleMin, scaleMax]);
var yScale = d3.scaleLinear().range([HEIGHT - MARGINS.top, MARGINS.bottom]).domain([minValue,maxValue+numberOfSignals*300]);
xAxis = d3.svg.axis().scale(xScale);
yAxis = d3.svg.axis().scale(yScale).orient("left");
vis.append("svg:g")
.attr("transform", "translate(0," + (HEIGHT - MARGINS.bottom) + ")")
.call(xAxis);
vis.append("svg:g")
.attr("transform", "translate(" + (MARGINS.left) + ",0)")
.call(yAxis);
this is my code. But everytime i run it i get the error "plot:91 Uncaught TypeError: Cannot read property 'axis' of undefined". The thing is that it worked before. was there an update? Thanks!
这是我的代码。但每次我运行它时，我都会收到错误消息“plot:91 Uncaught TypeError: Cannot read property 'axis' of undefined”。问题是它以前有效。有更新吗？谢谢！
回答by Cyril Cherian
For version 4 It has to be:
对于版本 4 它必须是：
var xScale = d3.scaleLinear().range([MARGINS.left, WIDTH - MARGINS.right]).domain([scaleMin, scaleMax]);
var yScale = d3.scaleLinear().range([HEIGHT - MARGINS.top, MARGINS.bottom]).domain([minValue,maxValue+numberOfSignals*300]);
var xAxis = d3.axisBottom()
.scale(xScale);
var yAxis = d3.axisLeft()
.scale(yScale);
Instead of this code below(will work in version 3):
而不是下面的代码（将在版本 3 中工作）：
xAxis = d3.svg.axis().scale(xScale);
yAxis = d3.svg.axis().scale(yScale).orient("left");
