Vips.Image.draw_mask (original) (raw)

Method

VipsImagedraw_mask

Declaration [src]

int
vips_draw_mask (
  VipsImage* image,
  double* ink,
  int n,
  VipsImage* mask,
  int x,
  int y,
  ...
)

Description [src]

Draw mask on the image. mask is a monochrome 8-bit image with 0/255 for transparent or ink coloured points. Intermediate values blend the ink with the pixel. Use with vips_text() to draw text on an image. Use in avips_draw_line() subclass to draw an object along a line.

ink is an array of double containing values to draw.

This method is not directly available to language bindings.

Parameters

ink

Type: An array of double

Value to draw.

n

Type: int

Size of ink array.

mask

Type: VipsImage

Mask of 0/255 values showing where to plot.

The data is owned by the caller of the method.

x

Type: int

Draw mask here.

y

Type: int

Draw mask here.

...

Type: ``

NULL-terminated list of optional named arguments.

Return value

Type: int

0 on success, or -1 on error.