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 line chart using mouse events for legend.
For example:
...
"options" => array(
...
"legend" => array(
"onHover" => "function(event, legendItem) {
log('onHover: ' + legendItem.text);
}",
"onLeave" => "function(event, legendItem) {
log('onLeave: ' + legendItem.text);
}",
"onClick" => "function(event, legendItem) {
log('onClick:' + legendItem.text);
}"
)
)
...
<?php
require_once "../../../load.koolreport.php";
require_once "MyReport.php";
$report = new MyReport;
$report->run();
$report->render();
?>
<html>
<head>
<title>
Legend Callbacks
</title>
<style>
body,
html {
height: 100%;
font-family: sans-serif;
}
#log {
position: absolute;
right: 0;
top: 0;
bottom: 0;
background-color: #EEE;
float: right;
width: 20%;
padding: 8px;
overflow-y: auto;
white-space: pre;
line-height: 1.5em;
}
</style>
</head>
<body>
<div id="log"></div>
<script>
var logEntry = 1;
var logElement = document.getElementById('log');
function log(text) {
logElement.innerText += logEntry + '. ' + text + '\n';
logElement.scrollTop = logElement.scrollHeight;
logEntry++;
}
</script>
</body>
</html><?php
class MyReport extends \koolreport\KoolReport
{
}
<div id="report_render" style="width: 75%">
<?php
class SamplesUtils
{
private $seed;
public function srand($seed)
{
$this->seed = $seed;
}
public function rand($min = 0, $max = 1)
{
$this->seed = ($this->seed * 9301 + 49297) % 233280;
$random = $min + ($this->seed / 233280) * ($max - $min);
return $random;
}
public function numbers($config = [])
{
$min = isset($config['min']) ? $config['min'] : 0;
$max = isset($config['max']) ? $config['max'] : 1;
$from = isset($config['from']) ? $config['from'] : [];
$count = isset($config['count']) ? $config['count'] : 8;
$decimals = isset($config['decimals']) ? $config['decimals'] : 8;
$continuity = isset($config['continuity']) ? $config['continuity'] : 1;
$dfactor = pow(10, $decimals);
$data = [];
for ($i = 0; $i < $count; $i++) {
$value = (isset($from[$i]) ? $from[$i] : 0) + $this->rand($min, $max);
if ($this->rand() <= $continuity) {
$data[] = round($value * $dfactor) / $dfactor;
} else {
$data[] = null;
}
}
return $data;
}
}
$samples = new SamplesUtils();
$samples->srand(42);
$inputs = [
'min' => 20,
'max' => 80,
'count' => 8,
'decimals' => 2,
'continuity' => 1
];
$randomData1 = $samples->numbers($inputs);
$randomData2 = $samples->numbers($inputs);
$data = [
['month' => 'January', 'My First dataset' => $randomData1[0], 'My Second dataset' => $randomData2[0]],
['month' => 'February', 'My First dataset' => $randomData1[1], 'My Second dataset' => $randomData2[1]],
['month' => 'March', 'My First dataset' => $randomData1[2], 'My Second dataset' => $randomData2[2]],
['month' => 'April', 'My First dataset' => $randomData1[3], 'My Second dataset' => $randomData2[3]],
['month' => 'May', 'My First dataset' => $randomData1[4], 'My Second dataset' => $randomData2[4]],
['month' => 'June', 'My First dataset' => $randomData1[5], 'My Second dataset' => $randomData2[5]],
['month' => 'July', 'My First dataset' => $randomData1[6], 'My Second dataset' => $randomData2[6]],
['month' => 'August', 'My First dataset' => $randomData1[7], 'My Second dataset' => $randomData2[7]]
];
\koolreport\chartjs\LineChart::create(array(
'dataSource' => $data,
'columns' => array(
"month",
"My First dataset" => array(
"backgroundColor" => "#4dc9f6",
"borderColor" => '#4dc9f6',
"fill" => false,
),
"My Second dataset" => array(
"backgroundColor" => "#f67019",
"borderColor" => '#f67019',
"fill" => false,
)
),
"options" => array(
"responsive" => true,
"title" => array(
"display" => true,
"text" => 'Chart.js Line Chart'
),
"legend" => array(
"onHover" => "function(event, legendItem) {
log('onHover: ' + legendItem.text);
}",
"onLeave" => "function(event, legendItem) {
log('onLeave: ' + legendItem.text);
}",
"onClick" => "function(event, legendItem) {
log('onClick:' + legendItem.text);
}"
),
"scales" => array(
"xAxes" => array(
array(
"display" => true,
"scaleLabel" => array(
"display" => true,
"labelString" => 'Month'
)
)
),
"yAxes" => array(
array(
"display" => true,
"scaleLabel" => array(
"display" => true,
"labelString" => 'Value'
)
)
)
)
)
));
?>
</div>
</div>What People Are Saying
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--
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--
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--
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