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render_bar_graph()

Description

Output the Javascript to build a bar chart in the canvas denoted by $id
$data must be in the following format
$data = array(
"point_a x value" => "point_a y value",
"point_b x value" => "point_b y value",

Parameters

ColumnTypeDefaultDescription
$id string identifier for the canvas to render the chart in
$data array data to be rendered in the chart

Return

void

Location

include/reporting_functions.php lines 873 to 898

Definition

 
function render_bar_graph(string $id, array $data)
    {
    $values = "";
    foreach ($data as $t => $c)
        {
        $values .= "{x: $t, y: $c },\n";
        }
    ?>
    <script type="text/javascript">
        new Chart(
            document.getElementById(' echo escape($id) ?>'),
            {
            type: 'line',
            data: {
                datasets: [
                    {
                        data: [ echo escape($values) ?>]
                    }
                ]
            },
            options: chartstyling echo escape($id)?>,
        }
        );
    </script>
    
    }

This article was last updated 4th December 2024 09:05 Europe/London time based on the source file dated 7th November 2024 17:40 Europe/London time.