function polygon($points, $color, $width = null, $style = null, $fill = false)
{
$this->_set_fill_color($color);
$this->_set_stroke_color($color);
if (!$fill && isset($width)) {
$this->_set_line_style($width, "square", "miter", $style);
}
$y = $this->y(array_pop($points));
$x = array_pop($points);
$this->_pdf->moveto($x, $y);
while (count($points) > 1) {
$y = $this->y(array_pop($points));
$x = array_pop($points);
$this->_pdf->lineto($x, $y);
}
if ($fill) {
$this->_pdf->fill();
} else {
$this->_pdf->closepath_stroke();
}
}
