The above example shows you how to create LineChart using ChartJs package. In this example, for purpose of chart demonstration only, we do use mock-up data from array. As you can see, the KoolReport's widget in general support dataSource could be DataStore, Process, DataSource or even simple array.
This example shows how to build a multi-axis chart by using yAxisID property and specifying the yAxisID for each column.
For example:
...
"columns"=>array(
"month",
"series1"=>array(
...
"yAxisID" => "y-axis-1",
),
"series2"=>array(
...
"yAxisID" => "y-axis-2",
),
),
"options"=>array(
"scales" => array(
"yAxes" => array(
array(
...
"id" => "y-axis-1"
),
array(
...
"id" => "y-axis-2",
)
)
)
)
...
<?php
if (session_status() !== PHP_SESSION_ACTIVE) session_start();
require_once "../../../load.koolreport.php";
require_once "MyReport.php";
$report = new MyReport;
$report->run();
?>
<?php
if (isset($_POST['command'])) {
?>
<div id='report_render'>
<?php
$report->render();
?>
</div>
<?php
exit;
}
?>
<?php
if (isset($_GET)) {
?>
<div id='report_render'>
<?php
$report->render();
?>
</div>
<?php
}
?>
<html>
<head>
<title>
Line Chart Multiple Axes
</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
</head>
<body>
<br>
<button id="randomizeData" class="btn">Randomize Data</button>
<script>
$(document).ready(function() {
$('#randomizeData').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: "run.php",
data: {
command: 'randomizeData',
},
success: function(response) {
$('#report_render').html(response);
}
})
})
})
</script>
<div>
<div id='report_render'>
</div>
</div>
</body>
</html>
<?php
class MyReport extends \koolreport\KoolReport
{
}
<div id="report_render">
<?php
function randomScalingFactor()
{
return mt_rand(-100, 100);
}
$data = [
['month' => 'February', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'January', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'March', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'April', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'May', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'June', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
['month' => 'July', 'series1' => randomScalingFactor(), 'series2' => randomScalingFactor()],
];
if (isset($_POST['command']) && $_POST['command'] === 'randomizeData') {
foreach ($data as &$entry) {
for ($i = 1; $i < count($data); $i++) {
$entry['series' . $i] = randomScalingFactor();
}
}
}
\koolreport\chartjs\LineChart::create(array(
'dataSource' => $data,
'columns' => array(
"month",
"series1" => array(
"label" => "Series 1",
"yAxisID" => "y-axis-1",
"backgroundColor" => 'rgb(255, 99, 132)',
"borderColor" => 'rgb(255, 99, 132)',
),
"series2" => array(
"label" => "Series 2",
"yAxisID" => "y-axis-2",
"backgroundColor" => 'rgb(54, 162, 235)',
"borderColor" => 'rgb(54, 162, 235)',
)
),
"options" => array(
"responsive" => true,
"hoverMode" => "index",
"stacked" => false,
"title" => array(
"display" => true,
"text" => 'Chart.js Line Chart - Multi Axis'
),
"scales" => array(
"yAxes" => array(
array(
"type" => "linear",
"display" => true,
"position" => "left",
"id" => "y-axis-1"
),
array(
"type" => "linear",
"display" => true,
"position" => "right",
"id" => "y-axis-2",
"gridLines" => array(
"drawOnChartArea" => false,
)
)
)
)
)
));
?>
</div>
