(PECL imagick 2.0.0)
ImagickDraw::line — Draws a line
$sx
   , float $sy
   , float $ex
   , float $ey
   )This function is currently not documented; only its argument list is available.
Draws a line on the image using the current stroke color, stroke opacity, and stroke width.
sx
     starting x coordinate
sy
     starting y coordinate
ex
     ending x coordinate
ey
     ending y coordinate
No value is returned.