PDF_shading
(PECL pdflib:2.0-2.1.3)
PDF_shading — Define blend
说明
int PDF_shading
( resource $pdfdoc
, string $shtype
, float $x0
, float $y0
, float $x1
, float $y1
, float $c1
, float $c2
, float $c3
, float $c4
, string $optlist
)
Defines a blend from the current fill color to another color.
This function requires PDF 1.4 or above.