Example

function pathStart($strokeColor, $fillColor, $backgroundColor)
{
    $draw = new \ImagickDraw();

    $draw->setStrokeOpacity(1);
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);

    $draw->setStrokeWidth(2);
    $draw->setFontSize(72);

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 50);
    $draw->pathLineToAbsolute(100, 50);
    $draw->pathLineToRelative(0, 50);
    $draw->pathLineToHorizontalRelative(-50);
    $draw->pathFinish();

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 50);
    $draw->pathMoveToRelative(300, 0);
    $draw->pathLineToRelative(50, 0);
    $draw->pathLineToVerticalRelative(50);
    $draw->pathLineToHorizontalAbsolute(350);
    $draw->pathclose();
    $draw->pathFinish();

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 300);
    $draw->pathCurveToAbsolute(50, 300, 100, 200, 300, 300);
    $draw->pathLineToVerticalAbsolute(350);
    $draw->pathFinish();

    $imagick = new \Imagick();
    $imagick->newImage(500, 500, $backgroundColor);
    $imagick->setImageFormat("png");

    $imagick->drawImage($draw);

    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}