Below is my line graph where I am using 2 lines to show different values,
One line is blue and the other is red.
however the red line i want to start from 'Dec 27'(half way of the graph) instead of the start of the graph. I have been looking ways to do this but honestly I'm not sure how I can.
if someone is able to show me how i would appreciate that a lot.
Thanks you in advance!
This is my css:
path.line {
fill: none;
stroke: #004ecc;
stroke-width: 4px;
}
path.line2 {
fill: none;
stroke: #cc0000;
stroke-width: 4px;
}
path.area {
fill: #e7e7e7;
}
.guideline {
margin-right: 100px;
float: right;
}
.axis path,
.axis line {
fill: none;
stroke-width: 5px;
}
.x.axis path {
display: none;
}
.y.axis path {
display: none;
}
.grid .tick {
stroke: black;
stroke-width: 0.2px;
opacity: 5;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 2px;
}
.graph-column {
float: left;
}
.tablebad thead tr {
background-color: #eee;
}
.tablegood thead tr th {
background-color: #eee;
}
This is my d3.js:
<script>
var margin = {
top: 0,
right: 90,
bottom: 30,
left: 50
},
width = 1200 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom,
padding = 1;
var parseDate = d3.time.format("%d-%b-%y").parse;
// Set the ranges
var x = d3.time.scale()
.range([10, width - 15]);
var x2 = d3.scale.ordinal().rangePoints([10, width], .10)
var y = d3.scale.linear()
.range([height, 100]);
var xAxis = d3.svg.axis().scale(x2)
.orient("bottom")
.tickFormat(d3.time.format("%b %d"))
.ticks(4)
.tickPadding(2);
var yAxis = d3.svg.axis().scale(y)
.orient("left");
var valueline = d3.svg.line()
.interpolate("basis")
.x(function(d) {
return x(d.date);
})
.y(function(d) {
return y(d.XMAS);
});
var valueline2 = d3.svg.line()
.interpolate("basis")
.x(function(d) {
return x(d.date);
})
.y(function(d) {
return y(d.JANSALES);
});
//florida
var chart1 = d3.select("#LineChart")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//needed for the grid
function make_y_axis() {
return d3.svg.axis()
.scale(y)
.orient("left")
}
data1 = [{
"date": "24-Dec-12",
"XMAS": 2,
"JANSALES": 0
}, {
"date": "25-Dec-12",
"XMAS": 3,
"JANSALES": 0
},
{
"date": "26-Dec-12",
"XMAS": 1,
"JANSALES": 0
},
{
"date": "27-Dec-12",
"XMAS": 2.0,
"JANSALES": 0
},
{
"date": "28-Dec-12",
"XMAS": 4.0,
"JANSALES": 0
},
{
"date": "29-Dec-12",
"XMAS": 4.0,
"JANSALES": 0
}
,
{
"date": "29-Dec-12",
"XMAS": 5,
"JANSALES": 0
},
{
"date": "30-Dec-12",
"JANSALES": 3.0
},
{
"date": "31-Dec-12",
"JANSALES": 2.0
},
{
"date": "01-Jan-13",
"JANSALES": 3.0
},
{
"date": "02-Jan-13",
"JANSALES": 1.0
},
{
"date": "03-Jan-13",
"JANSALES": 3.0
},
{
"date": "04-Jan-13",
"JANSALES": 2.0
},
{
"date": "05-Jan-13",
"JANSALES": 2.0
},
{
"date": "06-Jan-13",
"JANSALES": 1.0
},
{
"date": "07-Jan-13",
"JANSALES": 2.0
},
{
"date": "08-Jan-13",
"JANSALES": 2.0
},
{
"date": "09-Jan-13",
"JANSALES": 3.0
},
{
"date": "10-Jan-13",
"JANSALES": 2.0
},
{
"date": "11-Jan-13",
"JANSALES": 3.0
},
{
"date": "12-Jan-13",
"JANSALES": 3.0
},
{
"date": "13-Jan-13",
"JANSALES": 2.0
},
{
"date": "14-Jan-13",
"JANSALES": 1.0
}
];
var color = d3.scale.ordinal().range(["#004ecc", "#cc0000"]);
//d3.csv("data.csv", function(error, data) {
data1.forEach(function(d) {
d.date = parseDate(d.date);
d.XMAS = +d.XMAS;
d.JANSALES = +d.JANSALES;
});
// Scale the range of the data
x.domain(d3.extent(data1, function(d) {
return d.date;
}));
y.domain([0, 10]);
x2.domain(data1.map(function(d) {
return d.date;
}));
//add the grid
chart1.append("g")
.attr("class", "grid")
.call(make_y_axis()
.tickSize(-width, 0, 0)
.tickFormat("")
)
chart1.append("path")
.attr("class", "line")
.attr("stroke", "red")
.attr("d", valueline(data1));
chart1.append("path")
.attr("class", "line2")
.attr("d", valueline2(data1.filter(function(d) {
return d.date > parseDate("29-Dec-12");
})));
// Add the X Axis
chart1.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Add the Y Axis
chart1.append("g")
.attr("class", "y axis")
.call(yAxis);
chart1.append("text")
.attr("transform", "translate(" + (width + 3) + "," + y(data1[0].JANSALES) + ")")
.attr("x", ".1em")
.attr("y", "-40")
.attr("text-anchor", "start")
.style("fill", "red")
.style("font-size", "15")
.style("font-weight", "bold")
.text("JAN SALES");
chart1.append("text")
.attr("transform", "translate(" + (width + 3) + "," + y(data1[0].XMAS) + ")")
.attr("x", ".1em")
.attr("y", "10")
.attr("text-anchor", "start")
.style("fill", "steelblue")
.style("font-size", "15")
.style("font-weight", "bold")
.text("XMAS");
//plus 1: animation
var curtain = chart1.append('rect')
.attr('x', -1 * width)
.attr('y', -1 * height - 2)
.attr('height', height)
.attr('width', width)
.attr('class', 'curtain')
.attr('transform', 'rotate(180)')
.style('fill', '#ffffff')
/* Optionally add a guideline */
var guideline = chart1.append('line')
.attr('stroke', '#333')
.attr('stroke-width', 0.4)
.attr('class', 'guide')
.attr('x1', 1)
.attr('y1', 1)
.attr('x2', 1)
.attr('y2', height)
var t = chart1.transition()
.delay(120)
.duration(500)
.ease('linear')
.each('end', function() {
d3.select('line.guide')
.transition()
.style('opacity', 0)
.remove()
});
t.select('rect.curtain')
.attr('width', 0);
t.select('line.guide')
.attr('transform', 'translate(' + width + ', 0)')
d3.select("#show_guideline").on("change", function(e) {
});
</script>
And finally this is my Div tag where i am calling out the d3.js:
<div id="florida"></div>
