function draw_graph($type, $settings = array(), $values = array(), $colors = array(), $links = array(), $h = 300, $w = 200)
{
$g = new SVGGraph($w, $h, $settings);
$g->Values($values);
$g->Colours($colors);
$g->Links($links);
$img = $g->Fetch($type);
return $img;
}
/**
* Box-report generator complement, encapsulate SVGGraph handlings.
*/
function set_graph_3slices($vals, $vLabel, $is_float, $is_explode, $no_label = true, $gbox_w = 320, $gbox_h = 0)
{
$graph_3slices = new SVGGraph($gbox_w, $gbox_h, ['label_font' => 'Georgia', 'label_font_size' => '18', 'label_colour' => '#000', 'back_colour' => 'white', 'stroke_colour' => 'rgb(180,140,140)', 'explode_amount' => 16, 'explode' => 'all', 'sort' => false]);
$vals_out = [];
$colours = [];
foreach ($vals as $k => $v) {
$label = $no_label ? '' : "{$vLabel[$k][0]} ";
$vals_out[sprintf($is_float ? "{$label}%.1f%%" : "{$label}%s%%", $v)] = $v;
$colours[] = $vLabel[$k][1];
}
$graph_3slices->Values($vals_out);
$graph_3slices->colours = $colours;
// sort=false to preserve colour-value matching.
if ($is_explode) {
$GG = $graph_3slices->Fetch('ExplodedPieGraph', false);
} else {
$GG = $graph_3slices->Fetch('PieGraph', false);
}
$GG = preg_replace('#<rect .+?/>#', '', $GG);
return $GG;
}
$p3 += 1;
break;
case 4:
$p4 += 1;
break;
case 5:
$p5 += 1;
break;
default:
break;
}
}
array_push($values, array("1." => $p1, "2." => $p2, "3." => $p3, "4." => $p4, "5." => $p5));
echo "<h3 style='text-align: center;'>" . $questions[$i - 1] . "</h3>";
$colours = array(array('#E80000', '#E80000'), array('orange', 'orange'), array('yellow', 'yellow'), array('lightgreen', 'lightgreen'), array('#39E81A', '#39E81A'));
$graph = new SVGGraph(512, 320, $settings);
$graph->colours = $colours;
$graph->Values($values);
echo $graph->Fetch('BarGraph', false) . "<hr>";
}
} else {
?>
<p> Välj vilken klass samt lärare ovan fär att se dess resultat.</p> <?php
}
?>
</div>
</div>
</body>
</html>
/**
* Creates the pie circle as an SVG image using SVGGraph, then imports it
* into the pdf using TCPDF.
* <p>
* The x/y define the origin of where to begin drawing the svg graphic;
* this is the upper left corner of image.
* <p>
* To draw the svg graphic this method calls SVGGraph->Fetch
* <p>
* To import the svg graphic into the pdf this method calls TCPDF->ImageSVG
* <p>
* ImageSVG params:
* $file, $x='', $y='', $w=0, $h=0, $link='', $align='', $palign='',
* $border=0, $fitonpage=false
*
* @param float $curX the x position
* @param float $curY the y position
*/
public function drawPie($curX, $curY)
{
// process the values and colors, to deal with a bug in SVGGraph where a value of 0
// doesn't use a color from the list, which would cause the slices to not be the correct color
$values = $this->pieWedgeValues;
$colors = $this->getGraphColorsText();
self::fixGraphValuesAndColors($values, $colors);
/*
Create the pie as a circle in an SVG image; width in pixels, height in pixels, settings.
If aspect_raitio is 1.0, the smallest value controls the size; HOWEVER, the svg image itself
is rectilinear (give it a border and this becomes visible) and will be what height and width
you set it to, such as 100 x 200.
*/
$graph = new SVGGraph($this->svgGraphicWidth, $this->svgGraphicHeight, $this->svgGraphSettings);
$graph->Values($values);
$graph->Colours($colors);
$svg = $graph->Fetch('PieGraph');
// This imports the svg into the PDF.
$this->pdf->ImageSVG('@' . $svg, $curX, $curY, 0, 0, '', '', '', $this->imageSvgBorder);
}
