Javascript D3-向简单折线图添加网格
在下面的简单折线图中,我想将网格添加到x轴和y轴。有人能帮我吗 片段:Javascript D3-向简单折线图添加网格,javascript,d3.js,svg,charts,linechart,Javascript,D3.js,Svg,Charts,Linechart,在下面的简单折线图中,我想将网格添加到x轴和y轴。有人能帮我吗 片段: <html> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.12/angular.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/j
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.12/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.3.0/d3.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<svg></svg>
<script>
//module declaration
var app = angular.module('myApp',[]);
//Controller declaration
app.controller('myCtrl',function($scope){
$scope.svgWidth = 800;//svg Width
$scope.svgHeight = 500;//svg Height
//Data in proper format
var data = [
{"letter": "A","frequency": "5.01"},
{"letter": "B","frequency": "7.80"},
{"letter": "C","frequency": "15.35"},
{"letter": "D","frequency": "22.70"},
{"letter": "E","frequency": "34.25"},
{"letter": "F","frequency": "10.21"},
{"letter": "G","frequency": "7.68"},
];
//removing prior svg elements ie clean up svg
d3.select('svg').selectAll("*").remove();
//resetting svg height and width in current svg
d3.select("svg").attr("width", $scope.svgWidth).attr("height", $scope.svgHeight);
//Setting up of our svg with proper calculations
var svg = d3.select("svg");
var margin = {top: 20, right: 20, bottom: 30, left: 40};
var width = svg.attr("width") - margin.left - margin.right;
var height = svg.attr("height") - margin.top - margin.bottom;
//Plotting our base area in svg in which chart will be shown
var g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//X and Y scaling
var x = d3.scaleBand().rangeRound([0, width]).padding(0.4);
var y = d3.scaleLinear().rangeRound([height, 0]);
x.domain(data.map(function(d) { return d.letter; }));
y.domain([0, d3.max(data, function(d) { return +d.frequency; })]);
//Final Plotting
//for x axis
g.append("g")
.call(d3.axisBottom(x))
.attr("transform", "translate(0," + height + ")");
//for y axis
g.append("g")
.call(d3.axisLeft(y))
.append("text").attr("transform", "rotate(-90)").attr("text-anchor", "end");
//the line function for path
var lineFunction = d3.line()
.x(function(d) {return x(d.letter); })
.y(function(d) { return y(d.frequency); })
.curve(d3.curveLinear);
//defining the lines
var path = g.append("path");
//plotting lines
path
.attr("d", lineFunction(data))
.attr("stroke", "blue")
.attr("stroke-width", 2)
.attr("fill", "none");
});
</script>
</body>
</html>
//模块声明
var-app=angular.module('myApp',[]);
//控制器声明
应用程序控制器('myCtrl',函数($scope){
$scope.svgWidth=800;//svg宽度
$scope.svgHeight=500;//svg高度
//正确格式的数据
风险值数据=[
{“字母”:“A”,“频率”:“5.01”},
{“字母”:“B”,“频率”:“7.80”},
{“字母”:“C”,“频率”:“15.35”},
{“字母”:“D”,“频率”:“22.70”},
{“字母”:“E”,“频率”:“34.25”},
{“字母”:“F”,“频率”:“10.21”},
{“字母”:“G”,“频率”:“7.68”},
];
//删除以前的svg元素,即清理svg
d3.select('svg')。selectAll(“*”).remove();
//在当前svg中重置svg高度和宽度
d3.选择(“svg”).attr(“宽度”、$scope.svgWidth).attr(“高度”、$scope.svgHeight);
//通过正确的计算设置svg
var svg=d3.选择(“svg”);
var-margin={顶部:20,右侧:20,底部:30,左侧:40};
var width=svg.attr(“width”)-margin.left-margin.right;
var height=svg.attr(“height”)-margin.top-margin.bottom;
//在svg中绘制我们的基本区域,其中将显示图表
var g=svg.append(“g”).attr(“transform”、“translate”(“+margin.left+”,“+margin.top+”));
//X和Y缩放
var x=d3.scaleBand().rangeRound([0,宽度]).padding(0.4);
变量y=d3.scaleLinear().rangeRound([height,0]);
x、 域(data.map(函数(d){返回d.letter;}));
y、 域([0,d3.max(数据,函数(d){return+d.frequency;})]);
//最终绘图
//对于x轴
g、 附加(“g”)
.call(d3.axisBottom(x))
.attr(“变换”、“平移(0)”、“高度+”);
//对于y轴
g、 附加(“g”)
.呼叫(d3.左(y))
.append(“text”).attr(“变换”、“旋转(-90)”).attr(“文本锚定”、“结束”);
//路径的线函数
var lineFunction=d3.line()
.x(函数(d){返回x(d字母);})
.y(函数(d){返回y(d.频率);})
.曲线(d3.曲线线);
//界定界线
var path=g.append(“路径”);
//绘制线
路径
.attr(“d”,线函数(数据))
.attr(“笔划”、“蓝色”)
.attr(“笔划宽度”,2)
.attr(“填充”、“无”);
});
结果:
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.12/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.3.0/d3.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<svg></svg>
<script>
//module declaration
var app = angular.module('myApp',[]);
//Controller declaration
app.controller('myCtrl',function($scope){
$scope.svgWidth = 800;//svg Width
$scope.svgHeight = 500;//svg Height
//Data in proper format
var data = [
{"letter": "A","frequency": "5.01"},
{"letter": "B","frequency": "7.80"},
{"letter": "C","frequency": "15.35"},
{"letter": "D","frequency": "22.70"},
{"letter": "E","frequency": "34.25"},
{"letter": "F","frequency": "10.21"},
{"letter": "G","frequency": "7.68"},
];
//removing prior svg elements ie clean up svg
d3.select('svg').selectAll("*").remove();
//resetting svg height and width in current svg
d3.select("svg").attr("width", $scope.svgWidth).attr("height", $scope.svgHeight);
//Setting up of our svg with proper calculations
var svg = d3.select("svg");
var margin = {top: 20, right: 20, bottom: 30, left: 40};
var width = svg.attr("width") - margin.left - margin.right;
var height = svg.attr("height") - margin.top - margin.bottom;
//Plotting our base area in svg in which chart will be shown
var g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//X and Y scaling
var x = d3.scaleBand().rangeRound([0, width]).padding(0.4);
var y = d3.scaleLinear().rangeRound([height, 0]);
x.domain(data.map(function(d) { return d.letter; }));
y.domain([0, d3.max(data, function(d) { return +d.frequency; })]);
//Final Plotting
//for x axis
g.append("g")
.call(d3.axisBottom(x))
.attr("transform", "translate(0," + height + ")");
//for y axis
g.append("g")
.call(d3.axisLeft(y))
.append("text").attr("transform", "rotate(-90)").attr("text-anchor", "end");
//the line function for path
var lineFunction = d3.line()
.x(function(d) {return x(d.letter); })
.y(function(d) { return y(d.frequency); })
.curve(d3.curveLinear);
//defining the lines
var path = g.append("path");
//plotting lines
path
.attr("d", lineFunction(data))
.attr("stroke", "blue")
.attr("stroke-width", 2)
.attr("fill", "none");
});
</script>
</body>
</html>
请帮助我找到如何在x轴和y轴上将网格添加到图表中。创建网格线有两种主要方法,其中一种是将
innerTickSize
设置为负数(请参见此)。这种方法的问题是你失去了向外的滴答声。因此,我将解释第二种方式:
首先,为两个轴设置一个类:
//for x axis
g.append("g")
.attr("class", "xAxis")
.call(d3.axisBottom(x))
.attr("transform", "translate(0," + height + ")");
//for y axis
g.append("g")
.attr("class", "yAxis")
.call(d3.axisLeft(y))
.append("text").attr("transform", "rotate(-90)").attr("text-anchor", "end");
然后,使用这些类附加以下行:
d3.selectAll("g.yAxis g.tick")
.append("line")
.attr("class", "gridline")
.attr("x1", 0)
.attr("y1", 0)
.attr("x2", width)
.attr("y2", 0);
d3.selectAll("g.xAxis g.tick")
.append("line")
.attr("class", "gridline")
.attr("x1", 0)
.attr("y1", -height)
.attr("x2", 0)
.attr("y2", 0);
下面是一个演示:
//正确格式的数据
风险值数据=[
{“字母”:“A”,“频率”:“5.01”},
{“字母”:“B”,“频率”:“7.80”},
{“字母”:“C”,“频率”:“15.35”},
{“字母”:“D”,“频率”:“22.70”},
{“字母”:“E”,“频率”:“34.25”},
{“字母”:“F”,“频率”:“10.21”},
{“字母”:“G”,“频率”:“7.68”},
];
变量宽度=500,高度=300;
//删除以前的svg元素,即清理svg
d3.select('svg')。selectAll(“*”).remove();
//在当前svg中重置svg高度和宽度
d3.选择(“svg”).attr(“宽度”,宽度).attr(“高度”,高度);
//通过正确的计算设置svg
var svg=d3.选择(“svg”);
var-margin={顶部:20,右侧:20,底部:30,左侧:40};
var width=svg.attr(“width”)-margin.left-margin.right;
var height=svg.attr(“height”)-margin.top-margin.bottom;
//在svg中绘制我们的基本区域,其中将显示图表
var g=svg.append(“g”).attr(“transform”、“translate”(“+margin.left+”,“+margin.top+”));
//X和Y缩放
var x=d3.scaleBand().rangeRound([0,宽度]).padding(0.4);
变量y=d3.scaleLinear().rangeRound([height,0]);
x、 域(data.map(函数(d){返回d.letter;}));
y、 域([0,d3.max(数据,函数(d){return+d.frequency;})]);
//最终绘图
//对于x轴
g、 附加(“g”)
.attr(“类”、“xAxis”)
.call(d3.axisBottom(x))
.attr(“变换”、“平移(0)”、“高度+”);
//对于y轴
g、 附加(“g”)
.attr(“类”、“亚克斯”)
.呼叫(d3.左(y))
.append(“text”).attr(“变换”、“旋转(-90)”).attr(“文本锚定”、“结束”);
d3.选择全部(“g.yAxis g.tick”)
.附加(“行”)
.attr(“类”、“网格线”)
.attr(“x1”,0)
.attr(“y1”,0)
.attr(“x2”,宽度)
.attr(“y2”,0);
d3.选择全部(“g.xAxis g.tick”)
.附加(“行”)
.axis path,
.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
.axis path,
.axis line {
fill: none;
stroke: black;
opacity: 0.2;
}