enter image description here
Above when I hover over the chart it highlights the section Im hovering over with a grey border. What can I do to remove this.
You can use the hoverBorderWidth property to remove the border on hover like this:
var myDoughnutChart = new Chart(ctx, {
type: 'doughnut',
data: {
datasets: [
data: [//data here],
hoverBorderWidth: 0
]
},
options: options
});
Related
So I've been trying to recreate the chart in the following image:
I'm using the cutoutPercentage property but it affects both doughnuts, in my case, I only want to change the thickness of the outer ring.
This is what I have now:
You can define the weight option on individual datasets to obtain the desired result.
weight: The relative thickness of the dataset. Providing a value for weight will cause the pie or doughnut dataset to be drawn with a thickness relative to the sum of all the dataset weight values.
Please take a look at below runnable code snippet and see how it works.
var pieChart = new Chart("myChart", {
type: 'doughnut',
data: {
labels: ["Red", "Blue", "Yellow"],
datasets: [{
data: [300, 50, 100],
backgroundColor: ["#FF6384", "#36A2EB", "#FFCE56"],
weight: 0.2
}, {
data: [200, 100, 25],
backgroundColor: ["#FF6384", "#36A2EB", "#FFCE56"],
}]
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="myChart"></canvas>
Currently, I have a graph, and I want it so that after 3 data points, the graph is a dotted line. (Attempting to do show current data + predictions on this graph)
Current Code
<canvas id="commands"></canvas>
<script>
var ctx = document.getElementById("commands");
var myLineChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["03/14","03/16","Today","Tommorow"],
datasets: [{
data: ["0","0","23","90"],
}],
},
});
</script>
I'd like it so that the line between 23-90 and any points after that is a dotted line, (this can be done for the whole graph by adding borderDash: [10,5], but I'd like it to work for only certain points.)
Update: I've found a fiddle which does this, https://jsfiddle.net/uwb8357r/, but as you can see the tooltips look really bad.
I would like to make a google chart that highlights different regions continents, or countries based on a particular grouping.
The problem is I can't figure the best way to show both continents and countries.
For instance, I'd like to have two highlighted entries: Europe and Japan.
I can use the below JS code to attempt this:
google.load('visualization', '1', {'packages': ['geochart']});
google.setOnLoadCallback(drawVisualization);
function drawVisualization() {
var data = google.visualization.arrayToDataTable([
['Region', 'Label', {role: 'tooltip', p:{html:true}}],
['150', 1, 'Europe'],
['Japan', 2, 'Japan']
]);
var options = {
resolution: 'continents',
}
var geochart = new google.visualization.GeoChart(
document.getElementById('visualization'));
geochart.draw(data, options);
};
The above code partly works- Europe is properly highlighted and labelled. However, because resolution is set to 'continents' Japan does not get highlighted. If I set resolution to 'countries' the opposite problem occurs.
So the real question:
Is there a way to highlight both Europe and Japan individually with one array entry each, or do I have to put every single European country in the list to also have Japan highlighted?
yes, you would need to put every single European country in the list to also have Japan highlighted
another option might be to draw two charts, one on top of the other,
using the following config options to allow the bottom one to show thru.
backgroundColor: 'transparent',
datalessRegionColor: 'transparent',
however, this would suppress the tooltip on the bottom chart.
see following working snippet for an example...
google.charts.load('current', {packages:['geochart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data1 = google.visualization.arrayToDataTable([
['Region', 'Label', {role: 'tooltip', p:{html:true}}],
['150', 1, 'Europe']
]);
var options1 = {
backgroundColor: 'transparent',
datalessRegionColor: 'transparent',
resolution: 'continents'
}
var geochart1 = new google.visualization.GeoChart(
document.getElementById('visualization1')
);
geochart1.draw(data1, options1);
var data2 = google.visualization.arrayToDataTable([
['Region', 'Label', {role: 'tooltip', p:{html:true}}],
['Japan', 2, 'Japan']
]);
var options2 = {
backgroundColor: 'transparent',
datalessRegionColor: 'transparent',
resolution: 'countries'
}
var geochart2 = new google.visualization.GeoChart(
document.getElementById('visualization2')
);
geochart2.draw(data2, options2);
}
.geo {
left: 0px;
position: absolute;
top: 0px;
width: 100%;
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div class="geo" id="visualization1"></div>
<div class="geo" id="visualization2"></div>
note: jsapi should no longer be used to load the charts library,
according to the release notes...
The version of Google Charts that remains available via the jsapi loader is no longer being updated consistently. The last update, for security purposes, was with a pre-release of v45. Please use the new gstatic loader.js from now on.
this will only change the load statement, see above snippet...
I have a dataset that has 1-2 entries per day and I don't want that many labels on the x-axis so I am going through them and only showing every 5th or 10nth one. My issue is I do want to show the label for each one in the tooltips. I have a second array or data with the original label set that I want to use for tooltips but can't seem to figure it out. I assume there should be a fairly simple solution for this.
Below is a simple example. I tried adding the cutom option on tooltips with the second dataset but no luck.
var labels = ["10-23-2017", "", "10-25-2017", ""];
var labels2 = ["10-23-2017", "10-24-2017", "10-25-2017", "10-26-2017"];
var chart = document.getElementById('chart').getContext('2d');
var myChart = new Chart(chart, {
// The type of chart we want to create
type: 'line',
// The data for our dataset
data: {
labels: labels,
datasets: [{
label: "Readings",
backgroundColor: 'rgb(255, 99, 132)',
borderColor: 'rgb(255, 99, 132)',
data: data,
}]
},
// Configuration options go here
options: {
tooltip: [{
enabled: true,
custom: labels2
}]
}
});
To track number of visitor comes through which website and do some analysis on the same. We are creating a column chart to show the analysis report in graphical form.
All the things are showing correctly on chart, but we are showing website name on haxis. As website name is too long like "www.google.com", www.facebook.com, this label are being cut off on haxis.
Code to draw chart is given below:
function createTodayChart(chartData){
var data = new google.visualization.DataTable();
data.addColumn('string', 'Sources');
data.addColumn('number', 'Total Sales');
for (var i in chartData){
//alert(chartData[i][0]+'=>'+ parseInt(chartData[i][1]));
data.addRow([chartData[i][0], parseInt(chartData[i][1])]);
}
var options = {
legend: {position:'top'},
hAxis: {title: 'Sources', titleTextStyle: {color: 'black'}, count: -1, viewWindowMode: 'pretty', slantedText: true},
vAxis: {title: 'Total Sales (in USD)', titleTextStyle: {color: 'black'}, count: -1, format: '$#'},
colors: ['#F1CA3A']
};
var chart = new google.visualization.ColumnChart(document.getElementById('my_div'));
chart.draw(data, options);
}
Data in chartData variable is in array form as:
var chartData = [];
cartData.push('www.w3school.com', 106);
cartData.push('www.google.com', 210);
Width and height of "my_div" are 350px and 300px respectively. We have also attached screen shot of this issue given below:
Can anyone help me that how can we prevent this cutting issue. Or, Is any method available in google chart API to prevent this?
Waiting for solution.
This is an always recurring issue in google visualization, in my opinion :( There are a few "tricks" one can experiment with : chartArea and hAxis.textPosition. Here is your code in a jsFiddle with the following chartData, reproducing the problem above :
var chartData = [
['www.facebook.com', 45],
['http://www.google.com', 67],
['www.stackoverflow.com', 11]
];
fiddle -> http://jsfiddle.net/a6WYw/
chartArea can be used to adjust the upper "padding" taking space from the legend / hAxis below along with the internal height of the bars (the chart itself without axis and legend). For example
chartArea: {
top: 55,
height: '40%'
}
Will shrink the chartArea, giving room for the legend on the hAxis.
fiddle -> http://jsfiddle.net/Swtv3/
My personal favourite is to place the hAxis legend inside the chart by
hAxis : { textPosition : 'in' }
This will honor both short and long descriptions, and does not make the chart looking too "weird" when there is a few very long strings.
fiddle -> http://jsfiddle.net/7HBmX/
As per comment - move the "in" labels outside the chart. There is to my knowledge no native way to do this, but we can always alter the <svg>. This can be a difficult task, but in this case we know that the only <text> elements who has the text-anchor="middle" attribute is the h-axis labels and the overall h-axis description. So
var y, labels = document.querySelectorAll('[text-anchor="middle"]');
for (var i=0;i<labels.length-2;i++) {
y = parseInt(labels[i].getAttribute('y'));
labels[i].setAttribute('y', y+30);
}
to move the labels outside the chart. demo -> http://jsfiddle.net/970opuu0/