Currently, it seems that CanvasJS only supports angling labels in one direction (with the baseline on the left), as shown in the image below. I would like to rotate the text in the opposite direction (With the baseline for the text being on the right), as shown by the arrows.
So far, I have tried setting the axisX labelAngle to 90, 270, -45, -90, and -270. None of these have resulted in shifting the baseline to the right like I want, and have all forced the text to a max of 90 degrees with the baseline on the left.
Is this possible in the current version? #Devs: If not available in current version, would it be possible to add in support for this?
You can set angle to negative value to make it rotated the other way-round, as shown in this screenshot.
Here is an example.
var chart = new CanvasJS.Chart("chartContainer",
{
axisX:{
title: "labels at -45 deg",
labelAngle: -45
},
data: [
{
type: "column",
dataPoints: [
{ x: 10, y: 71, label: "cat 1" },
{ x: 20, y: 55, label: "cat 2" },
{ x: 30, y: 50, label: "cat 3" },
{ x: 40, y: 65, label: "cat 4" },
{ x: 50, y: 95, label: "cat 5" },
{ x: 60, y: 68, label: "cat 6" },
{ x: 70, y: 28, label: "cat 7" },
{ x: 80, y: 34, label: "cat 8" },
{ x: 90, y: 14, label: "cat 9" }
]
}
]
});
chart.render();
<script src="http://canvasjs.com/assets/script/canvasjs.min.js"></script>
<div id="chartContainer" style="height: 360px; width: 100%;"></div>
Related
I have a line plot created using d3plus, and I need to have multiple line annotations (one horizontal and two vertical) with Shape labels to identify them. I am able to get the lines to show properly, but I am unable to get multiple labels to show up on the graph.
Here is my set of data:
[
{"id":"line","myDate":"Sep 2011","value":8303269},
{"id":"line","myDate":"Jul 2012","value":8389066},
{"id":"line","myDate":"Sep 2012","value":8632844},
{"id":"line","myDate":"Mar 2013","value":8926414},
{"id":"line","myDate":"Jun 2013","value":9169985},
{"id":"line","myDate":"Mar 2014","value":9273689},
{"id":"line","myDate":"Sep 2014","value":9343712},
{"id":"line","myDate":"Dec 2014","value":9416974},
{"id":"line","myDate":"May 2015","value":9546380},
{"id":"line","myDate":"Sep 2015","value":10484320},
{"id":"line","myDate":"Sep 2015","value":11455165},
{"id":"line","myDate":"Dec 2015","value":11997581},
{"id":"line","myDate":"Apr 2016","value":12104931},
{"id":"line","myDate":"May 2016","value":12111915},
{"id":"line","myDate":"Jun 2016","value":12127119},
{"id":"line","myDate":"Jul 2016","value":12800226},
{"id":"line","myDate":"Mar 2017","value":12915303},
{"id":"line","myDate":"Nov 2017","value":12947360},
{"id":"line","myDate":"Nov 2018","value":12957309}
]
and here is my LinePlot annotations array.
new LinePlot()
.select("#demo")
.height(500)
.config({
data: vm.plotData,
x: 'myDate',
y: 'value',
groupBy: 'id',
annotations: [
{
data: [
{id: "start", x: "Jul 2012", y: 8000000},
{id: "start", x: "Jul 2012", y: 20000000},
{id: "end", x: "Nov 2017", y: 8000000},
{id: "end", x: "Nov 2017", y: 20000000},
{id: "dotted", x: "Sep 2011", y: this.item.ceilingValue},
{id: "dotted", x: "Nov 2018", y: this.item.ceilingValue}
],
shape: "Line",
stroke: function(d) {
return d.id === "box" ? "blue" : "green";
},
strokeDasharray: "10",
strokeWidth: 2
},
{
data: [
{
x: 'Jul 2012',
y: 20000000,
width: 100,
height: 25
}
],
fill: "#0c1971",
label: "Start Date",
labelConfig: {
textAnchor: "middle",
verticalAlign: "middle"
},
shape: "Rect"
},
{
data: [
{
x: 'Nov 2017',
y: 20000000,
width: 10,
height: 25
}
],
fill: "#255832",
label: "End Date",
labelConfig: {
textAnchor: "middle",
verticalAlign: "middle"
},
shape: "Rect"
}
]
})
.render()
What happens is that when I just have the Start Date item, it works fine, but when I add the End Date object, the first one disappears, and the second one isn't fully rendered.
According to the docs, annotations accepts
custom config objects for the Shape class, either a single config object or an array of config objects.`,
which is what I've provided, so I'm not sure where the problem is. What do I need to change to get all of my labels to appear properly?
I was able to figure it out based on this comment. The gist is that you have to combine all items of a particular Shape into one object:
annotations: [
{
data: [
{id: "start", x: "Jul 2012", y: 8000000},
{id: "start", x: "Jul 2012", y: 20000000},
{id: "end", x: "Nov 2017", y: 8000000},
{id: "end", x: "Nov 2017", y: 20000000},
{id: "dotted", x: "Sep 2011", y: this.item.ceilingValue},
{id: "dotted", x: "Nov 2018", y: this.item.ceilingValue}
],
shape: "Line",
stroke: function(d) {
return d.id === "box" ? "blue" : "green";
},
strokeDasharray: "10",
strokeWidth: 2
},
{
data: [
{
id: 'start',
label: 'Start Date',
x: 'Jul 2012',
y: 20000000,
width: 100,
height: 25
},
{
id: 'end',
label: 'End Date',
x: 'Nov 2017',
y: 20000000,
width: 100,
height: 25
}
],
fill: function(d) {
let result;
switch (d.id) {
case 'start':
result = "#0c1971";
break;
case 'end':
result = "#255832";
break;
}
return result;
},
label: function (d) {
let result;
switch (d.id) {
case 'start':
result = "Start Date";
break;
case 'end':
result = "End Date";
break;
}
return result;
},
labelConfig: {
textAnchor: "middle",
verticalAlign: "middle"
},
shape: "Rect"
}
]
I use canvasJS to make a line graph report, the issue now is it didn't show properly in tooltip using yValueFormatString.
my goal is to display the value:
{
type:"stepLine",
name: "title",
showInLegend: true,
connectNullData: true,
yValueFormatString: "##.## %",
dataPoints: [
{ x: new Date(2019, 1, 20), y: 12.78 },
{ x: new Date(2019, 1, 19), y: 12.79 },
{ x: new Date(2019, 1, 18), y: 12.80 },
]
}
in tooltip, it shows
1278 %
1279 %
1280 %
I think there's something wrong with it, I wanted to display like:
12.78 %
12.79 %
12.80 %
any idea?
According to documentation, "%" Multiplies a number by 100 i.e. 12.78("##.## %") => 1278%. Instead setting yValueFormatString to "##.#0 '%'" should work fine in this case.
Here is an example:
var chart = new CanvasJS.Chart("chartContainer", {
data: [{
type:"stepLine",
name: "title",
showInLegend: true,
connectNullData: true,
yValueFormatString: "##.#0 '%'",
dataPoints: [
{ x: new Date(2019, 1, 20), y: 12.78 },
{ x: new Date(2019, 1, 19), y: 12.79 },
{ x: new Date(2019, 1, 18), y: 12.80 },
]
}]
});
chart.render();
<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<div id="chartContainer" style="width: 100%; height: 260px"></div>
I am trying to build a stacked bar chart using c3.js.
The issue I have is that the bars that get generated are not coralated to the Y axis.
This is what I have so far: https://codepen.io/anon/pen/dZLMoY?editors=1010
And this is the code:
c3.generate({
bindto:'#chart',
data: {
type: 'bar',
columns: [
['Column 1', 2, 10, 22, 34, 9, 60],
['Column 2', 6, 15, 43, 36, 45, 75],
['Column 3', 10, 20, 79, 39, 50, 97],
['Column 4', 12, 27, 87, 76, 55, 150]
],
groups: [
['Column 1', 'Column 2', 'Column 3', 'Column 4']
],
},
bar: {
width: 15,
},
axis: {
x: {
show: true
},
y: {
show: true,
padding: {
top: 0,
bottom: 0
},
tick: {
//count: 6
},
min: 0,
max: 150
}
},
grid: {
x: {
show: true
},
y: {
show: true
}
}
});
As you can see the bar chart is generated but it is not generated correctly. The last 4 bars are all equal even if the values that are provided are not.
Taking into consideration that the Y axis has the maximum value set to 150 then the 2nd, 3rd and 4th bars should not ocupy the same height as the 5th bar
What am I doing wrong?
Your axis.y.max value is less than stacked sum, so chart is clipped at the top.
Try this:
c3.generate({
...
axis: {
...
y: {
...
min: 0,
max: 500
}
}
}
Or see it in action.
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
I am using 2 chart of canvasjs plugin piechart and columnchart.
In piechart labels of the elements are so fine it uses all the spaces into content free but column chart if one label is length is big it skipped. But I dont want it to skip.
so this is my question, is there any way using labels(X-Axis only) in column chart(barchart) like just like in piechart ?
Thank you.
Note: I parse it, change it etc. everything comes up another problem if I interrupt the plugin itself so I need though solution.
Charts automatically skips label when they are too close to avoid overlapping. You can override this behavior by setting interval to 1.
Refer Axis X Interval for more detail.
Here is an example:
var chart = new CanvasJS.Chart("chartContainer",
{
axisX:{
title: "Axis X with interval 1",
interval: 1
},
data: [
{
type: "column",
dataPoints: [
{ x: 1, y: 71 },
{ x: 2, y: 55 },
{ x: 3, y: 50 },
{ x: 4, y: 65 },
{ x: 5, y: 95 },
{ x: 6, y: 68 },
{ x: 7, y: 28 },
{ x: 8, y: 34 },
{ x: 9, y: 14 },
{ x: 10, y: 14 },
{ x: 11, y: 71 },
{ x: 12, y: 55 },
{ x: 13, y: 50 },
{ x: 14, y: 65 },
{ x: 15, y: 95 },
{ x: 16, y: 68 },
{ x: 17, y: 28 },
{ x: 18, y: 34 },
{ x: 19, y: 14 }
]
}
]
});
chart.render();
<script src="http://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/>
<div id="chartContainer" style="height: 360px; width: 100%;"></div>