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    Non-smooth linechart
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    Posted by Samuel  · 23-02-2017 - 08:47

    Hi,

    By default, lineCharts are drawn with smooth lines, is there any way to change it?

    This code:

    $docx->addChart(array(
    'data'      => $chart_data,
    'type'      => 'lineChart',
    'sizeX'     => 16,
    'sizeY'     => 8,
    'legendPos' => 'b'
));

    Generates something like this: http://imgur.com/a/NQP8v

    What I need: http://imgur.com/a/cbyX5

    Thanks

    Posted by admin  · 23-02-2017 - 11:42

    Hello,

    The smooth option is only available for scatter charts, you can read about this option on:

    http://www.phpdocx.com/api-documentation/word-content/add-chart-Word-document-with-PHP

    Anyway, you can add support for line charts easily:

    1. Edit the file CreateLineChart.inc and around line 169 add these lines:

                if (!empty($this->_smooth) && $this->_smooth && $this->_symbol != 'dot') {
                $this->generateSMOOTH();
            }

    Instead of this code:

                foreach ($this->values as $legend => $value) {
                if ($legend == 'legend') {
                    continue;
                }
                $this->generatePT($num);
                $this->generateV($value[$i]);
                $num++;
            }

            $this->cleanTemplate3();

     

    The class must use this code:

                foreach ($this->values as $legend => $value) {
                if ($legend == 'legend') {
                    continue;
                }
                $this->generatePT($num);
                $this->generateV($value[$i]);
                $num++;
            }

            if (!empty($this->_smooth) && $this->_smooth && $this->_symbol != 'dot') {
                $this->generateSMOOTH();
            }
            $this->cleanTemplate3();

    2. Use the new option (smooth option) when adding the chart:

    $paramsChart = array(
    'data' => $data,
    'type' => 'lineChart',
    'color' => '5',
    'chartAlign' => 'center',
    'showTable' => 0,
    'sizeX' => '12',
    'sizeY' => '10',
    'legendPos' => 'b',
    'legendOverlay' => '0',
    'haxLabel' => 'X Axis',
    'vaxLabel' => 'Y Axis',
    'haxLabelDisplay' => 'horizontal',
    'vaxLabelDisplay' => 'vertical',
    'hgrid' => '3',
    'vgrid' => '1',
    'smooth' => true,
);
$docx->addChart($paramsChart);

    Regards.