Draw a based line in Google line chart - javascript

I working with Google line chart I want to draw a based line but I don't know how should I do that for example I want to draw line in 2004 between 400 and 600 how should I do that
here Google Sample:
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]
]);
var options = {
title: 'Company Performance'
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>

You can do this in a few different ways, depending on exactly what you want to achieve. The easiest way is to use "interval" role columns:
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses', {role: 'interval', type: 'number'}, {role: 'interval', type: 'number'}],
['2004', 1000, 400, 400, 600],
['2005', 1170, 460, null, null],
['2006', 660, 1120, null, null],
['2007', 1030, 540, null, null]
]);
var options = {
title: 'Company Performance'
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
There is quite a bit of customization you can do with intervals, see the documentation.
Another way is to add a new series of data for this line, change the data type of the first column from "string" to "number", and add multiple rows of data with the same x-values, eg:
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses', 'vertical lines'],
[2004, 1000, 400, 400],
[2004, null, null, 600],
[2005, 1170, 460, null],
[2006, 660, 1120, null],
[2007, 1030, 540, null]
]);
var options = {
title: 'Company Performance',
interpolateNulls: true, // this prevents your other lines from breaking
series: {
2: {
// these options control your new series for the vertical lines
visibleInLegend: false, // hide from the legend
enableInteractivity: false // make the line non-interactive
color: '#9055a6' // set the color of the line
// etc...
}
}
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}

Related

How to create downloadable link of google chart in image file

In the code, I am trying to add a hyperlink below the chart. As I click it, it will take me to a new tab with a google chart image for download.Any helps?
https://codepad.remoteinterview.io/KOURCFTBEG
As I viewed a lot of examples, most of them put
google.visualization.events.addListener(chart, 'ready',function() {
console.log(chart.getChart().getImageURI());
document.getElementById('png').innerHTML = '<a href="' +
chart.getChart().getImageURI() + '">Printable version</a>';
});
It seems to me that this would create a downloadable link to an image of the google chart on the <div id=png>But in my case, no link or clickable button is created.
google.charts.load('current', {'packages':['bar']});
google.charts.setOnLoadCallback(drawBar);
function drawBar() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses', 'Profit'],
['2013', 1001, 401, 201],
['2014', 1000, 400, 200],
['2015', 1170, 460, 250],
['2016', 660, 1120, 300],
['2017', 1030, 540, 350]
]);
var options = {
chart: {
title: 'Company Performance',
subtitle: 'Sales, Expenses, and Profit: 2014-2017',
}
};
//---------------------------//
var chart = new google.charts.Bar(document.getElementById('chart_div'));
// Wait for the chart to finish drawing before calling the getImageURI() method.
google.visualization.events.addListener(chart, 'ready', function() {
console.log(chart.getChart().getImageURI());
document.getElementById('png').innerHTML = 'Printable version';
});
chart.draw(data, options);
}
<body>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1.0','packages':['corechart']},{'name':'visualization','version':'1.0','packages':['controls']}]}"></script>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
<div id='png'></div>
</body>
I followed the online source as similar as I can, but still get error like chart.getURI() is not function.
Here is the online source I referred most. Here is Fiddle.
Try this
<a href="link_to_image_download" target=_blank>Download here</a>
if you don't have a link to download, go to imgur.com and upload the image and add the share link into your href=
You can use print() as suggested by Google Developer API.
Here is the thing I assume you're looking for:
https://developers.google.com/chart/interactive/docs/printing
By removing getChart() in chart.getChart().getImageURI()and
,in package, by modifying bar to corechart can do the work.
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawBar);
function drawBar() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses', 'Profit'],
['2013', 1001, 401, 201],
['2014', 1000, 400, 200],
['2015', 1170, 460, 250],
['2016', 660, 1120, 300],
['2017', 1030, 540, 350]
]);
var options = {
chart: {
title: 'Company Performance',
subtitle: 'Sales, Expenses, and Profit: 2014-2017',
}
};
//---------------------------//
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
// Wait for the chart to finish drawing before calling the getImageURI() method.
google.visualization.events.addListener(chart, 'ready', function() {
// console.log(chart.getImageURI());
document.getElementById('png').innerHTML = 'Printable version';
});
chart.draw(data, options);
}
<body>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1.0','packages':['corechart']},{'name':'visualization','version':'1.0','packages':['controls']}]}"></script>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
<div id='png'></div>
</body>

django variable to javascript

I'm trying to use google charts to visualize some data. As described in docs, i put this code to my template:
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var tmp = document.getElementById('result').value;
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]]
);
var options = {
title: 'Company Performance',
curveType: 'function',
legend: { position: 'bottom' }
};
var chart = new google.visualization.LineChart(document.getElementById('curve_chart'));
chart.draw(data, options);
}
</script>
<div id="curve_chart" style="width: 900px; height: 500px"></div>
And it works fine. But i need to pass some custom data, so i did:
views.py:
def home(request):
example = [
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]
]
return render(request, 'home.html', {'example': example})
As example data i used the same array. Next i replaced array in javascript code to {{ example }}:
var data = google.visualization.arrayToDataTable( {{example}} );
And nothing happens. Google chart isn't drawing on my webpage anymore.
What im doing wrong? Also i tried to use json.dumps in python code and it didn't worked for me.
You should simply turn your list of lists into valid json before you pass it to the template:
import json
def home(request):
example = [
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]
]
example = json.dumps(example)
return render(request, 'home.html', {'example': example})
Make sure you're using the safe template tag:
var data = google.visualization.arrayToDataTable( {{example|safe}} );
What is the error you're getting when you try that?

Is there any solution for intersecting two lines in google charts api shows information for both lines?

I am using google charts api for some graph.following is code which i am using
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 1170],
['2006', 660, 1120],
['2007', 1030, 540],
['2008', 660, 660],
['2009', 1030, 540]
]);
var options = {
title: 'Company Performance',
curveType: 'function',
legend: { position: 'bottom' }
};
var chart = new google.visualization.LineChart(document.getElementById('curve_chart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="curve_chart" style="width: 900px; height: 500px"></div>
</body>
</html>
where two lines are intersecting each other two times and because of that it is showing information only for one line .
Is there any way so that i can show information for both of lines when cursor is over that point?
try using...
focusTarget: 'category'
in the configuration options, see following example...
google.charts.load('current', {
callback: function () {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 1170],
['2006', 660, 1120],
['2007', 1030, 540],
['2008', 660, 660],
['2009', 1030, 540]
]);
new google.visualization.LineChart(document.getElementById('chart_div')).draw(data, {
focusTarget: 'category',
title: 'Company Performance',
curveType: 'function',
legend: { position: 'bottom' }
});
},
packages:['corechart']
});
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
EDIT
another option would be to provide your own tooltip
see following example, pretty basic but shows the logic...
add a tooltip column, after each value column
then populate the tooltip column with an html string
google.charts.load('current', {
callback: function () {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 1170],
['2006', 660, 1120],
['2007', 1030, 540],
['2008', 660, 660],
['2009', 1030, 540]
]);
// add tooltip columns
data.insertColumn(2, {type: 'string', role: 'tooltip', p: {html: true}});
data.addColumn({type: 'string', role: 'tooltip', p: {html: true}});
// build tooltip values
for (var i = 0; i < data.getNumberOfRows(); i++) {
data.setValue(i, 2, getTooltip(i, 1, 3));
data.setValue(i, 4, getTooltip(i, 3, 1));
}
// set tooltip content
function getTooltip(row, col1, col2) {
var tooltip = '<div class="tooltipLabel">' + data.getValue(row, 0) + '</div>';
tooltip += '<div><span class="tooltipLabel">' + data.getColumnLabel(col1) + '</span>: ' + data.getValue(row, col1) + '</div>';
if (data.getValue(row, col1) === data.getValue(row, col2)) {
tooltip += '<div><span class="tooltipLabel">' + data.getColumnLabel(col2) + '</span>: ' + data.getValue(row, col2) + '</div>';
}
return tooltip;
}
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, {
curveType: 'function',
legend: { position: 'bottom' },
pointSize: 5,
tooltip: {
isHtml: true
}
});
},
packages: ['corechart']
});
div {
padding: 6px 6px 6px 6px;
font-name: Arial;
}
.tooltipLabel {
font-weight: bold;
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>

changing colors of google bar chart and convert data into percentage

While using google bar chart how to change color of individual bar , and how to convert the data values into percentage.
You can preview it on http://jsfiddle.net/u4Lwwx1k/
<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1','packages':['corechart']}]}"></script>
<div id="chart_div" style="width: 500px; height: 200px;"></div>
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales'],
['2004', 1000],
['2005', 1170],
['2006', 660],
['2007', 1030, ]
]);
var options = {
title: 'Company Performance',
};
var chart = new google.visualization.BarChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
To get the colours you need to change your first line of the array:
Change ['Year', 'Sales'],
To: ['Year', 'Sales', { role: 'style' }],
then each value add the colour to the end like:
['2004', 1000, 'blue'],
['2005', 1170, '#cccccc'],
I think you will have to program the percentage yourself. Im looking to do the same and cant find any examples.

Different Color to Label

How can I give different colors to the x-axis labels of Google Visualization like 2004, 2005, 2006, 2007 in the first figure of below link?
https://developers.google.com/chart/interactive/docs/gallery/linechart.
I have used this code.
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Expenses'],
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]
]);
var options = {
title: 'Company Performance'
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
options = [{
//you can set the baseline color of the axis and the text like :
hAxis: {
baselineColor: '#c9311b',
textStyle:{color: 'red'}
},
vAxis: {
baselineColor: '#cccccc',
textStyle:{color: 'yellow'}
},
// and the series (labels) like :
series=[{targetAxisIndex:0,
color:'red'},
{targetAxisIndex:1,
color:'blue'
}]
}]
where the targetAxisIndex the dimension is

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