Let's take for example following chart http://c3js.org/samples/chart_bar.html
but replace columns data with the data below:
var chart = c3.generate({
data: {
columns: [
['data1', 30, 0, 100, 0, 150, 250],
['data2', 130, 0, 140, 200, 0, 50]
],
type: 'bar'
},
bar: {
width: {
ratio: 0.5 // this makes bar width 50% of length between ticks
}
// or
//width: 100 // this makes bar width 100px
}
});
setTimeout(function () {
chart.load({
columns: [
['data3', 130, -150, 200, 300, -200, 100]
]
});
}, 1000);
As we see we have a lot of white space or ZERO value bars, how can we remove it and remove white space. (not hide, I know how to hide it with CSS)
Image example, what should be removed
as googled in https://github.com/c3js/c3/issues/81
you need replace 0 to 'null' and add this:
line: {
connectNull: true,
},
var chart = c3.generate({
data: {
columns: [
['data1', 30, null, 100, null, 150, 250],
['data2', 130, null, 140, 200, null, 50]
],
line: {
connectNull: true,
},
type: 'bar'
},
bar: {
width: {
ratio: 0.5 // this makes bar width 50% of length between ticks
}
// or
//width: 100 // this makes bar width 100px
}
});
setTimeout(function () {
chart.load({
columns: [
['data3', 130, -150, 200, 300, -200, 100]
]
});
}, 1000);
Just add
line: {
connectNull: true,
}
in your c3.generate block.
It will connect all points/bars/... on the chart with a zero value in between.
It works with null as well as with 0.
Related
I would like to change the size of my legend because after using a position inset with bottom-left my legends elements doesn't have the same space between element:
https://user-images.githubusercontent.com/9460795/58431609-d9e77400-80ae-11e9-97c6-9efbd89bd558.png
I already tried to change the bar width but nothing happen
legend: { position: 'inset', padding: 10, inset: { anchor: 'bottom-left', x: -5, y: -50 - (20 * (this.selectedData.length - 2)), step: 1 }, item: { onmouseover: (id) => this.mouseOverLegendItem(id), onmouseout: (id) => this.mouseOutLegendItem(id), onclick: (id) => this.onmouseClickLegendItem(id) } }, bar: { width: 30 },
How can i fix it please ?
I'm newbi on c3 sorry :(
C3 version:"^0.6.13",
D3 version: "^5.9.1"
Unfortunately this fixed width seems to be baked into the positioning code when the legend is of type 'inset'. If you want the legend to display horizontally with no extra spacing between the items you're going to have to set the legend position as 'bottom'.
There is if you do that a hack whereby you can move that bottom legend into the chart area to mimic an inset though, but it's fairly brittle - see https://jsfiddle.net/5odf8w0x/
var chart = c3.generate({
data: {
columns: [
['data1ytuytuytutyuu', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 10, 20, 30, 40, 60, 70]
]
},
legend: {
position: 'bottom'
},
onrendered: function () {
console.log(this, this.config);
var x = +d3.select(this.config.bindto).select(".c3-legend-item text").attr("x");
x -= 70; // for axis and margin
d3.select(this.config.bindto).selectAll(".c3-legend-item").attr("transform", "translate(-"+x+",-50)");
}
});
I have made a stacked bar chart using c3 libraries and would like to add icons to each column (using c3 or d3). I went through their documentation but there doesnt seem to be any relevant functionality!
var chart = c3.generate({
data: {
columns: [
['data1', 30, 200, 100],
['data2', 130, 100, 140]
],
type: 'bar',
groups: [['data1', 'data2']]
},
});
You can import font-awesome and then (mis)use c3's label format configuration to set an icon for each series
var chart = c3.generate({
data: {
columns: [
['data1', 30, -200, -100, 400, 150, 250],
['data2', -50, 150, -150, 150, -50, -150],
['data3', -100, 100, -40, 100, -150, -50]
],
groups: [
['data1', 'data2']
],
type: 'bar',
labels: {
// format: function (v, id, i, j) { return "Default Format"; },
format: {
data1: function (v, id, i, j) { return "\uf1ec"; }, // a calculator
data2: function (v, id, i, j) { return "\uf212"; }, // a book
data3: function (v, id, i, j) { return "\uf1ae"; }, // a human
}
}
},
grid: {
y: {
lines: [{value: 0}]
}
}
});
You'll need this css rule -->
.c3-chart-text .c3-text {
font-family: 'FontAwesome';
}
And to import the FontAwesome css to get access to the glyphs (this may be an old version) -->
https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css
The glyph codes can be found here -->
https://fontawesome.com/cheatsheet
Example:
https://jsfiddle.net/h0g1fwpa/19/
I made a bar graph with c3.js and I need to add non consecutive days to the graph
The problem is that the graph adds empty days
http://c3js.org/samples/timeseries.html
I used this code, it is possible to copy and paste code in page and see live result
var chart = c3.generate({
data: {
x: 'x',
type: 'bar',
columns: [
['x', '2013-01-01', '2013-01-02', '2013-01-03', '2013-01-04', '2013-01-05', '2013-01-07', '2013-01-09', '2013-01-10', '2013-01-11'],
['data1', 30, 200, 100, 400, 150, 250, 250, 250, 250],
['data2', 130, 340, 200, 500, 250, 350, 250, 250, 250]
]
},
axis: {
x: {
type: 'timeseries',
tick: {
format: '%Y-%m-%d'
}
}
}
});
You can use a category axis instead of a timeseries axis. Check the example:
var chart = c3.generate({
data: {
x: 'x',
type: 'bar',
columns: [
['x', '2013-01-01', '2013-01-02', '2013-01-03', '2013-01-04', '2013-01-05', '2013-01-07', '2013-01-09', '2013-01-10', '2013-01-11'],
['data1', 30, 200, 100, 400, 150, 250, 250, 250, 250],
['data2', 130, 340, 200, 500, 250, 350, 250, 250, 250]
],
},
axis: {
x: {
type: 'category',
tick: {
centered: true
}
}
}});
Is there a way in C3.js for to add COLOR to an horizontal line, the level 0 in axis y in bar graphs? By default you have this graph:
What I need is this:
Any idea? thanks.
UPDATE: I've made a line with this, but I need to add color.
grid: {
y: {
lines: [
{value: 0, text: ''}
]
}
}
In case anyone need it, this does the magic:
https://github.com/c3js/c3/issues/362#issuecomment-46377069
The reference has an example for horizontal (x-axis) lines: https://c3js.org/samples/grid_x_lines.html
// Copied from the reference
var chart = c3.generate({
data: {
columns: [
['sample', 30, 200, 100, 400, 150, 250],
['sample2', 1300, 1200, 1100, 1400, 1500, 1250],
],
axes: {
sample2: 'y2'
}
},
axis: {
y2: {
show: true
}
},
grid: {
y: {
lines: [
{value: 50, text: 'Label 50 for y'},
{value: 1300, text: 'Label 1300 for y2', axis: 'y2', position: 'start'},
{value: 350, text: 'Label 350 for y', position: 'middle'}
]
}
}
});
Also for x-axis lines (vertical): https://c3js.org/samples/grid_x_lines.html
Is it possible to create an Area range chart in C3.js similar to that of Highcharts? I've attached a screenshot and link to the live sample http://www.highcharts.com/demo/arearange-line.
The idea is to show range data, perhaps the historical high and low values, and then overlay the current year's values with a line chart. Can C3 do this?
Thanks in advance!
I don't think there is an area range graph option, but you might be able to fake it like so:
var chart = c3.generate({
data: {
columns: [
['data1', 300, 350, 300, 290, 225, 220],
['data2', 250, 320, 280, 250, 170, 180],
['data3', 230, 300, 240, 200, 150, 150]
],
types: {
data1: 'area',
data2: 'line',
data3: 'area'
},
colors: {
data1: 'rgb(215, 232, 248)',
data2: 'rgb(120, 178, 235)',
data3: '#ffffff'
}
},
point: {
r: 1
}
});
With css:
.c3-area {
opacity:1;
}
Here's a fiddle:
http://jsfiddle.net/ot19Lyt8/17/