public function getGDImageOfMemoryLine(Watcher $Watcher, $width, $height, $y_scale = 1, $memory_size_scale = 1048576)
{
$points = $Watcher->getPointsArray();
if (empty($points) || empty($y_scale) || empty($memory_size_scale)) {
return false;
}
$max_y = $height;
$max_x = $width;
$img = imagecreatetruecolor($max_x, $max_y);
$point_color = imagecolorallocate($img, 0, 0, 255);
$line_color = imagecolorallocate($img, 0, 255, 0);
$string_color = imagecolorallocate($img, 0, 0, 0);
$white = imagecolorallocate($img, 255, 255, 255);
imagefill($img, 10, 10, $white);
$x = 0;
$y = 0;
$x_step = intval($max_x / 100);
foreach ($points as $point) {
$value = round($point[$Watcher::point_memory] / $memory_size_scale, 2);
$new_x = $x + $x_step;
$new_y = $value * $y_scale;
imageline($img, $x + 1, $max_y - $y, $new_x, $max_y - $new_y, $line_color);
$x = $new_x;
$y = $new_y;
imagesetpixel($img, $x, $max_y - $y, $point_color);
imagestringup($img, 1, $x, $max_y - $y - 5, $point[$Watcher::point_name], $string_color);
imagestringup($img, 1, $x, $max_y - $y + 30, $value, $string_color);
}
return $img;
}
