(PECL imagick 2, PECL imagick 3)
ImagickDraw::pathLineToVerticalRelative — Draws a vertical line path
$y
) : bool本函数还未编写文档，仅有参数列表。
Draws a vertical line path from the current point to the target point using relative coordinates. The target point then becomes the new current point.
yy coordinate
没有返回值。