I'm creating a pie chart using nvd3 and angular-nvd3. I've got my legend displayed but it's in a row across the top.
I'd like to display it in a column down the left side.
I found http://embed.plnkr.co/TJqjjkHaD2S0VjsGmN3c/preview but when I use the options found in the .js file then all that does is change the look of the legend, not the placement.
The css file is empty and there doesn't seem to be inline css in the html. So I'm unsure how they placed the position of the legend on the right in a column.
I do see legendPosition: 'right' but when I use legendPosition: 'left' then the entire pie chart disappears.
So at the least how do I display in a column, and it would be great if I could change it to the left.
Options object:
$scope.patientsChart = {
chart: {
type: 'pieChart',
height: 500,
x: function (d) {
var PatientStatuses = ["Unknown", "Green- Healthy", "Yellow - Fair", "Red - Unhealthy"];
return PatientStatuses[d.Key -1];
},
y: function (d) { return d.Value.length; },
showLabels: true,
duration: 500,
labelThreshold: 0.01,
labelSunbeamLayout: true,
showLegend: false,
legend: {
margin: {
top: 5,
right: 35,
bottom: 5,
left: 0
}
},
pie: {
dispatch: {
//elementClick: function (e) { console.log(e) }
}
},
color: function (d) {
var colors = ['#4066b9', '#009446', '#eba323', '#ee2726'];
return colors[d.Key - 1];
}
}
};
Directive for angular-nvd3:
<nvd3 options="FEV1Chart" data="patients"></nvd3>
If you want to rotateLabels in xAxis just add "rotateLabels: -45"
For example,
xAxis: {
axisLabel: 'Hours',
axisLabelDistance: 20,
showMaxMin: false,
rotateLabels: -45
},
Related
I am trying to add basic interactivity to my AMCHARTS 5 labels. Take this chart as an example:
I need to be able to click on the names at the left of the chart. That is actually yAxis because I use an inverted chart.
In the function that creates the series, I placed this code:
series.columns.template.events.once("click", function(ev) {
console.log("Clicked on a column", ev.target);
});
And it makes my bars to be clickable. I don't know how to refer to the labels on the left.
Labels as interactive elements in amCharts 5 are tricky. Basically, it's super hard to determine hover/click over just text because it's impossible to completely eradicate antialising, and the actual colored area is super tiny.
Therefore, if we need tooltip to be interactive - have a hover tooltip or handle click events - we need to add a background to it.
The background does not necessarily have to be visible: we can just set its fillOpacity: 0 to make it completely transparent.
Source: Labels – amCharts 5 Documentation
After the declaration and initialization of your yAxis, you can put this piece of code:
yAxis.get("renderer").labels.template.setup = target => {
target.setAll({
cursorOverStyle: "pointer",
background: am5.Rectangle.new(root, {
fill: am5.color(0x000000),
fillOpacity: 0
})
});
};
yAxis.get("renderer").labels.template.events.on("click", e => {
console.log(e.target.dataItem.dataContext.category);
});
Full example:
am5.ready(() => {
let root = am5.Root.new("chartdiv");
let chart = root.container.children.push(am5xy.XYChart.new(root, {}));
let data = [{
category: "Category 1",
value: 10
}, {
category: "Category 2",
value: 20
}, {
category: "Category 3",
value: 15
}];
let yAxis = chart.yAxes.push(am5xy.CategoryAxis.new(root, {
categoryField: "category",
renderer: am5xy.AxisRendererY.new(root, {
inversed: true,
cellStartLocation: 0.1,
cellEndLocation: 0.9
})
}));
yAxis.data.setAll(data);
yAxis.get("renderer").labels.template.setup = target => {
target.setAll({
cursorOverStyle: "pointer",
background: am5.Rectangle.new(root, {
fill: am5.color(0x000000),
fillOpacity: 0
})
});
};
yAxis.get("renderer").labels.template.events.on("click", e => {
console.log(e.target.dataItem.dataContext.category);
});
let xAxis = chart.xAxes.push(am5xy.ValueAxis.new(root, {
min: 0,
renderer: am5xy.AxisRendererX.new(root, {})
}));
let series = chart.series.push(am5xy.ColumnSeries.new(root, {
name: "Series",
xAxis: xAxis,
yAxis: yAxis,
valueXField: "value",
categoryYField: "category"
}));
series.data.setAll(data);
});
#chartdiv {
width: 100%;
height: 350px;
}
<script src="https://cdn.amcharts.com/lib/5/index.js"></script>
<script src="https://cdn.amcharts.com/lib/5/xy.js"></script>
<div id="chartdiv"></div>
I am using c3js to draw a line chart. x-axis displaying labels, which is rendered in between axis marker.
It is using axis.x.type : 'category'. otherwise the lines are not creating.
But I want to display it on x-axis marker, not in between them.
here is sample code
var chart = c3.generate({
data: {
x:'xaxis',
columns: [
['xaxis','cat1', 'cat2', 'cat3', 'cat4', 'cat5', 'cat6', 'cat7', 'cat8', 'cat9'],
['data1', 30, 200, 100, 400, 150, 250, 50, 100, 250]
]
},
axis: {
x: {
type: 'category'
}
}
});
Here is sample code on jsfiddle https://jsfiddle.net/abhinaw/kyjgzd62.
Is there a way to do this?
Thanks
Use axis.x.tick.centered option:
axis: {
x: {
tick: {
centered: true
}
}
}
See updated fiddle.
I have been using NVD3 but have decided to add some on-click events. I found an example using a horizontal bar chart.
vm.qcoptions = {
chart: {
type: 'multiBarHorizontalChart',
//type: 'discreteBarChart',
height: 450,
margin: {
top: 20,
right: 20,
bottom: 50,
left: 55
},
x: function (d) { return d.label; },
y: function (d) { return d.value + (1e-10); },
showValues: true,
valueFormat: function (d) {
return d3.format(',.4f')(d);
},
duration: 500,
xAxis: {
axisLabel: ''
},
yAxis: {
axisLabel: '',
axisLabelDistance: -10
},
callback: function (chart) {
chart.multibar.dispatch.on('elementClick', function (e) {
console.log('elementClick in callback', e.data);
});
}
}
};
The example above works when using the multiBarHorizonatChart, but when I switch to the discreteBarChart it throws this error "Cannot read property 'dispatch' of undefined" at this line
chart.multibar.dispatch.on('elementClick', function (e) {
I have tried to inspect chart and determine what I should in in place of chart.multibar for the bar chart but I am stumped. Can anyone shed any light on this?
You are referring now to the discrete bar chart. You will need to reflect that in the callback function as follows:
chart.discretebar.dispatch.on('elementClick', function (e) {
console.log('elementClick in callback', e.data);
});
I suggest that you always refer to this page with the extended radio button selected in order to see the appropriate property names.
Help me, please.
How to change the labels to the image (icon) in bar chart.js ?
I mean, change from this
change labels: "LifeWall_files/logo.png","Bodily Functions","Sleep"
to this
bottom icons
The easiest way to do this would be to get a font that includes these icons and then set the font family for the ticks
...
options: {
scales: {
xAxes: [{
ticks: {
fontFamily: 'FontAwesome'
}
}]
}
}
};
and then specify the appropriate character codes in your labels
labels: ["\uf24e", "\uf1b9", "\uf242", "\uf0fc", "\uf236"],
With the FontAwesome CSS, the above would give you
The Plugin Core API offers a range of hooks that may be used for performing custom code. You can use the afterDraw hook to draw images (icons) instead of tick labels directly on the canvas using CanvasRenderingContext2D.
You'll also have to instruct Chart.js not to display the default tick labels. This can be done through the following definition inside the chart options.
scales: {
xAxes: [{
ticks: {
display: false
}
}],
Further you need to define some padding at the bottom of the chart, otherwise you'll see only part of the images.
layout: {
padding: {
bottom: 30
}
},
Please have a look at the runnable code snippet below.
const labels = ['red vans', 'blue vans', 'green vans', 'gray vans'];
const images = ['https://i.stack.imgur.com/2RAv2.png', 'https://i.stack.imgur.com/Tq5DA.png', 'https://i.stack.imgur.com/3KRtW.png', 'https://i.stack.imgur.com/iLyVi.png'];
const values = [48, 56, 33, 44];
new Chart(document.getElementById("myChart"), {
type: "bar",
plugins: [{
afterDraw: chart => {
var ctx = chart.chart.ctx;
var xAxis = chart.scales['x-axis-0'];
var yAxis = chart.scales['y-axis-0'];
xAxis.ticks.forEach((value, index) => {
var x = xAxis.getPixelForTick(index);
var image = new Image();
image.src = images[index],
ctx.drawImage(image, x - 12, yAxis.bottom + 10);
});
}
}],
data: {
labels: labels,
datasets: [{
label: 'My Dataset',
data: values,
backgroundColor: ['red', 'blue', 'green', 'lightgray']
}]
},
options: {
responsive: true,
layout: {
padding: {
bottom: 30
}
},
legend: {
display: false
},
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}],
xAxes: [{
ticks: {
display: false
}
}],
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="myChart" height="90"></canvas>
I have a jqPlot hor. barchart like this one. jq plot - getting linear x axis ticks
I want to be able to put y-axis tick labels (like software and services, israel in the pic)
on top of respective bars using some parameters or renderer instead of fiddling with css.
Is there an easy way to do that? Thanks in advance.
so far, my code looks like below.
`
function drawChart() {
var data = new Array(3);
for (var i = 0; i < data.length; i++) {
data[i] = new Array(2);
data[i][0] = Math.random() * 100;
data[i][1] = 'text-' + (i + 1);
}
var plot2 = $.jqplot('votingresult', [
data,
], {
seriesDefaults: {
renderer: $.jqplot.BarRenderer,
pointLabels: { show: true, location: 'e', edgeTolerance: -15 },
shadow: false,
rendererOptions: {
barDirection: 'horizontal',
barPadding: 20,
barMargin: 0,
barWidth: 20,
varyBarColor: true,
}
},
gridPadding: { top: 0, right: 0, bottom: 0 },
grid: {
drawGridLines: false,
drawBorder: false,
shadow: false
},
axesDefaults: {
showTicks: false,
shadow: false
},
axes: {
yaxis: {
renderer: $.jqplot.CategoryAxisRenderer,
tickRenderer: $.jqplot.CanvasAxisTickRenderer,
tickOptions: {
fontSize: '10pt',
mark: 'inside',
showLabel: false
}
}
}
});
}`
I want jqplot like one shown in the right side in this flickr picture.
http://www.flickr.com/photos/surajshrestha/7455033636/sizes/l/in/photostream/
Jeroen: I have looked into point labels. But, here, I am talking about axis label to be inside the graph.
I had the same challenge and ended up just writing a function to append content to the graph DIV rather than try and fiddle with JQPlot. You just have to adjust the barMargin option to account for the spacing.
function makeSectionLabels(jsonObject, domObject, topPadding, spacing) {
var html = "<div class='bar-chart-sections' style='padding-top:"+topPadding+"'>";
$.each(jsonObject, function(index, value){
html += "<h5 style='margin-bottom:"+spacing+"'>"+value+"</h5>"
});
html += "</div>"
$(domObject).append(html);
};