I need help to export the google chart graph to pdf or put a button that
generates the pdf of the graph. Does anyone know how to do?
My code looks like this:
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
["Element", "Quantidade de Mudas", { role: "style" } ],
<?php
foreach ($relatorios as $value) {
echo '["'.$value['cidade'].'" , '.$value['quantidade'].' ,
""],';
//echo 'R$' . number_format($num, 2, ',', '.');
}
?>
]);
var view = new google.visualization.DataView(data);
view.setColumns([0, 1,
{ calc: "stringify",
sourceColumn: 1,
type: "string",
role: "annotation" },
2]);
var formatter = new google.visualization.NumberFormat(
{negativeColor: 'red', negativeParens: true, pattern:
'###.###'}); formatter.format(data, 1); formatter.format(data, 1);
var options = {
title: "Total de mudas por cidade",
width: 1560,
height: 2550,
bar: {groupWidth: "40%"},
legend: { position: "none" },
pieSliceText: 'value'
};
var chart = new
google.visualization.BarChart(document.getElementById("barchart_values",
"myChart"));
chart.draw(view, options);
$('button').on('click', function() {
html2canvas($('#myChart'), {
onrendered: function(canvas) {
var imgData = canvas.toDataURL('image/png');
var pdf = new jsPDF('p', 'mm');
pdf.addImage(imgData, 'PNG', 10, 10);
pdf.save('test.pdf');
}
});
});
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