I generate a Chartist Pie chart with the following data:
var mapPieData = {
series: [
{ value: 578, className: "pieNegativeColour", label: "online" },
{ value: 3182, className: "piePositiveColour", label: "offline" }
],
highest: { label: "Huawei", value: "10258", className: "pieColour1" },
maximum: 3760};
I use the following options to configure it:
var mapPieOptions = {
showLabel: true,
fullWidth: true,
chartPadding: 0};
I have to overlay the generated Pie chart on an .SVG map.
The problem is that the generated Pie chart is centred inside an .SVG container that's wider than it needs to be. That means the positioning is impractical. If I position the Pie chart on the top left, it actually ends up in the top middle, which is not what I want.
I want to remove this extra space around the Pie chart.
I was able to recreate your pie chart with your supplied code on the website with the example fiddles.
http://gionkunz.github.io/chartist-js/examples.html
$('.ct-chart').css({'background-color':'white'});
var data = {
series: [
{ value: 578, className: "ct-series-c", label: "online" },
{ value: 3182, className: "ct-series-a", label: "offline" }
],
highest: { label: "Huawei", value: "10258", className: "pieColour1" },
maximum: 3760
};
var options = {
showLabel: true,
fullWidth: true,
chartPadding: 0
};
new Chartist.Pie('.ct-chart', data, options);
I analyzed this and noticed that if I set the padding to a negative value, the render would increase in size, but would get clipped.
var options = {
showLabel: true,
fullWidth: true,
chartPadding: -40
};
Then I increased the size of the containing element, which sat at 100%, but actually didn't take up the full height.
By setting the container element to 750px height(as wide as it broad it would take up the full width of the element.
So now we have to automate this.
Assuming you have jQuery on hand you can simply do:
var $chart = $('.ct-chart');
$chart.css({'height':$chart.width()+'px'});
Running example on the snippets site:
var $chart = $('.ct-chart');
$chart.css({'background-color':'white','height':$chart.width()+'px'});
var data = {
series: [
{ value: 578, className: "ct-series-c", label: "online" },
{ value: 3182, className: "ct-series-a", label: "offline" }
],
highest: { label: "Huawei", value: "10258", className: "pieColour1" },
maximum: 3760
};
var options = {
showLabel: true,
fullWidth: true,
chartPadding: 0
};
new Chartist.Pie('.ct-chart', data, options);
If you don't have jQuery replace the jQuery lines with:
var chart = document.querySelector('#pie-with-custom-labels .ct-chart');
chart.style.height = chart.clientWidth+"px";
Related
In my code below, I am able to draw a Treemap and also display the tag in each tree cell. But I want to add some custom text next to my tag,
Like say I want the word 'Language' to appear in each tree map cell. I tried the formatter options, But its not working for the version of chart.js I am using. Kindly provide me a solution for the specific version I am using. Since I have multiple other charts defined and changing the version would cause issues.
var topTags = [
{tag:'android',num:42657},{tag:'reactjs',num:38844},{tag:'php',num:34381},{tag:'sql',num:29996},
];
var canvas = document.getElementById("treemap");
var ctx = canvas.getContext("2d");
var chart = window.chart = new Chart(ctx, {
type: "treemap",
data: {
datasets: [{
tree: topTags,
key: "num",
groups: ['tag'],
spacing: 0.5,
borderWidth: 1.5,
fontColor: "black",
borderColor: "grey"
}]
},
options: {
maintainAspectRatio: false,
legend: { display: false },
tooltips: { enabled: false }
}
});
CHART.JS AND TREEMAP VERSION :
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-chart-treemap#0.2.3"></script>
The formatter option only got added in version 2 of the treemap chart type, the scriptable option is only available in version 1 so the best way for you to get the extra text is by editing your original data array first and adding the text to it that way like so:
let topTags = [{
tag: 'android',
num: 42657
}, {
tag: 'reactjs',
num: 38844
}, {
tag: 'php',
num: 34381
}, {
tag: 'sql',
num: 29996
}, ];
topTags = topTags.map(e => ({
num: e.num,
tag: `Lang: ${e.tag}`
}))
const canvas = document.getElementById("chart");
const ctx = canvas.getContext("2d");
const chart = window.chart = new Chart(ctx, {
type: "treemap",
data: {
datasets: [{
tree: topTags,
key: "num",
groups: ['tag'],
spacing: 0.5,
borderWidth: 1.5,
fontColor: "black",
borderColor: "grey",
}]
},
options: {
maintainAspectRatio: false,
legend: {
display: false
},
tooltips: {
enabled: false
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-chart-treemap#0.2.3"></script>
<canvas id="chart"></canvas>
I have a bar chart with a legend in ExtJS 6.0.2.
I need to update the colors of the bars and of the legend when the user does an action (clicking on a pie slice in my case).
Updating the color of the bars works as intended, but the legend doesn't. Here is an example of what I do right now :
chart.getLegendStore().data.items.forEach(function(x){
x.data.mark = 'rgb(255,255,255)';
});
The colors are correctly set, but they only update when I click on the legend item. I guess it's because ExtJS has no way to know that the underlying store has been modified. I tried going up the callstack with the debugger but I didn't find anything useful.
Is there a better way to do what I want, or/and how to make the legend update instanly ?
EDIT: If it helps, here is how I update the bars :
serie.setConfig("colors", newColors);
EDIT2 : And here is the full chart code :
Ext.define('QuoteBarChart', {
extend: 'Ext.chart.CartesianChart',
alias: 'widget.quotebarchart',
xtype: 'quotebarchart',
requires: [
'Ext.chart.axis.Category',
'Ext.chart.axis.Numeric',
'Ext.chart.series.Bar',
'Ext.chart.series.Line',
'Ext.chart.theme.Muted',
'Ext.chart.interactions.ItemHighlight'
],
flex: 2,
height: 600,
theme: 'Muted',
itemId: 'chartId',
store: {
type: 'quote'
},
insetPadding: {
top: 40,
bottom: 40,
left: 20,
right: 40
},
axes: [{
type: 'numeric',
position: 'left',
fields: ['won', 'lost', 'open'],
minimum: 0,
grid: true,
titleMargin: 20,
title: 'Offres'
}, {
type: 'category',
position: 'bottom',
label: {
rotate: {
degrees: 45
}
},
fields: ['month']
}
],
series: [{
type: 'bar',
axis: 'left',
xField: 'month',
itemId: 'barId',
yField: ['open','lost','won'],
title: ['Ouvertes', 'Perdues','Gagnées'],
stacked: true,
fullStack: true,
colors: [
'rgb(64, 145, 186)', 'rgb(151, 65, 68)','rgb(140, 166, 64)'
],
highlight: {
strokeStyle: 'red',
fillStyle: 'black'
},
tooltip: {
trackMouse: true,
scope: this,
renderer: function (toolTip, storeItem, item) {
var name = "";
switch(item.field) {
case 'won': name = "Gagnées"; break;
case 'lost': name = "Perdues"; break;
case 'open': name = "Ouvertes"; break;
}
toolTip.setHtml("");
}
}
}],
legend: {
docked: 'bottom',
listeners: {
itemclick: 'onLegendItemClick',
itemmouseenter: 'onLegendItemHover'
}
}
)};
Ok, instead of modify colors of the series and colors of the legend, you can modify all of them in the same time doing this
chart.setColors(['red','blue','green']);
chart.redraw();
So you need to set colors on chart and not on series, and modify the array on button click.
I have been using HighCharts extensively for one of my project. Recently I started using Annotation.js along with it.
ALthough, the library works well but I can't configure its usage at all. The link here provides options but they are not working for me
My issues:
I have multiple charts on a page. As soon as I use annotation.js , each of them shows annotation. how do I show them on desired charts. I tried
annotations :[{ enabledButtons : false}]
and
annotationOptions :{ enabledButtons : false}
Both of them had no affect.
2.I want to display the pallette (containing icons like square, circle etc..) at top-right.
I used xValue, yValue attribute,
I used x, y attribute,
I used 'anchorX and anchorY` attribute.
None of the above works for me.
I want just to show the text icon. How can I hide other icons (line, square and circle). Didn't get any way to try for this one.
Am I missing something here. Kindly suggest. My basic way of using chart config is as below:
chart: {
type: chartData.Type.toLowerCase()
//annotations: [],
},
annotationsOptions: {
xValue: 234,
yValue:12
},
title: {
text: chartData.xTitle ? chartData.xTitle : ""
},
xAxis: {
categories: chartData.Categories
},
yAxis: {
allowDecimals: false,
min: 0,
title: {
text: chartData.yTitle ? chartData.yTitle : ""
},
plotLines: [{
value: 0,
width: 1,
color: "#808080"
}]
},
annotations: [{
xValue: 40,
yValue: 15
}],
plotOptions: {
line: {
marker: {
enabled: true
}
}
},
series: chartData['Series'][opt] ? chartData['Series'][opt] : chartData['Series'][opt.replace(/-|\s/g, "")],
}
I have tried annotations inside charts object as well.
You should be able to hide annotations buttons using:
annotationsOptions: {
enabledButtons: false
},
You can use annotationsOptions.buttons for changing the buttons you would like to display. Here you can see the code that will show only text butotn:
annotationsOptions: {
buttons: [{
annotationEvents: {
step: function() {}, // to be called during mouse drag for new annotation
stop: function(e) {
var ann = this,
chart = ann.chart,
index = chart.annotationInputIndex = chart.annotationInputIndex ? chart.annotationInputIndex : 1,
input = document.createElement('span'),
button;
input.innerHTML = '<input type="text" class="annotation-' + index + '" placeholder="Add text"><button class=""> Done </button>';
input.style.position = 'absolute';
input.style.left = e.pageX + 'px';
input.style.top = e.pageY + 'px';
document.body.appendChild(input);
input.querySelectorAll('input')[0].focus();
button = input.querySelectorAll('button')[0];
button.onclick = function() {
var parent = this.parentNode;
ann.update({
title: {
text: parent.querySelectorAll('input')[0].value
}
});
parent.parentNode.removeChild(parent);
};
chart.annotationInputIndex++;
} // to be called after mouse up / release
},
annotation: { // standard annotation options, used for new annotation
anchorX: 'left',
anchorY: 'top',
xAxis: 0,
yAxis: 0,
shape: {
// type: 'text'
}
},
symbol: { // button symbol options
shape: 'text', // shape, taken from Highcharts.symbols
size: 12,
style: {
'stroke-width': 2,
'stroke': 'black',
fill: 'red',
zIndex: 121
}
},
style: { // buton style itself
fill: 'black',
stroke: 'blue',
strokeWidth: 2,
},
size: 12, // buton size
states: { // states for button
selected: {
fill: '#9BD'
},
hover: {
fill: '#9BD'
}
}
}]
}
Here you can find an example how it may work: http://jsfiddle.net/7m3Mr/261/
You can move your buttons using:
annotationsOptions: {
buttonsOffsets: [0, -50],
},
Here you can find demo showing how it may work:
http://jsfiddle.net/7m3Mr/263/
I have implemented the following project. There are two lines on the chart.
However, I want to change position of x axis to move 0 at the center.
seriesDefaults: {
type: "scatterLine",
},
series: [{
name: "Path1",
data: stats,
markers: {
visible: false,
color: 'red'
}
}, {
name: "Path2",
data: stats2,
markers: {
visible: false
}
}],
http://jsfiddle.net/3yhbyy2g/13/
I need to customize x axis and reverse the datasource to display as follows:
Here is the solution:
All I did is to add the following lines of code:
min:-5000,
axisCrossingValue: [-5000, 0],
http://jsfiddle.net/3yhbyy2g/19/
I am expecting pretty weird problem with flot v.0.7. I have multiple axes, configured like that:
var plotData = [
{ data: data1 },
{ data: data2, yaxis: 2 }];
var options = {
selection: { mode: "x" },
xaxis: { mode: "time" },
yaxis: [
{ min: 0 },
{
min: 0,
position: "right",
zoomRange: false,
alignTicksWithAxis: 1,
tickFormatter: formatter,
}
],
grid: { markings: weekendAreas },
zoom: { interactive: true },
grid: {
clickable: true,
hoverable: true,
borderWidth: 1,
},
legend: { show: false },
};
var plot = $jq.plot(container, plotData, options);
But what I get is that both Y series are located on the right (not only second Y series). There is no formatter for my second series tick. Y values can be less then zero, if zooming. If I don't use array type for yaxis and define it as it would only be one series, then everything works fine. What am I doing wrong?
Instead of yaxis: [ ... ], use yaxes: [ ... ].
See the section of the docs entitled Multiple Axes for more info.