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I found a way here to resize the chart by loading it again to refresh the new height, tho it may not be the best practice. Also found a way to link each bar and send a parameter to another page. see the codes bellow.
in my dashboard.php:
<script>
window.onresize=function(){
$("#container").load("chart1.php");
}
$("#container").load("chart1.php");
</script>
in chart1.php:
<?php
//myqueries here for $ch1_arrDate,$ch1_arrRevenue_conf, and $ch1_arrDate2
?>
<div>
<canvas id="chart1" width="500" height="300"></canvas>
</div>
<script>
$(document).ready(function(){
var barLabel = <?php echo json_encode(array_reverse( $ch1_arrDate)); ?>;
var dataVal1 = <?php echo json_encode(array_reverse( $ch1_arrRevenue_conf)); ?>;
var dateFilter = <?php echo json_encode(array_reverse($ch1_arrDate2)); ?>;
var barData = {
labels: barLabel,
datasets: [
{
label: 'Confirmed Revenue',
backgroundColor: 'yellowgreen',
data: dataVal1,
},
]
};
var barOptions = {
responsive: true,
maintainAspectRatio: true
}
var ctx = document.getElementById("chart1").getContext("2d");
if($(window).width()>748)
ctx.canvas.height = 160;
else
ctx.canvas.height = 300;
var chartDisplay = new Chart(ctx, {
type: 'bar',
data: barData,
options: barOptions
});
$("#chart1").click(
function(e){
var activeBars = chartDisplay.getElementsAtEvent(e);
var index = activeBars[0]["_index"];
location.href="dash_chartdeals.php?filter_date="+fixedEncodeURIComponent(dateFilter[index]);
});
});
</script>
Source:stackexchange.com