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 a vips_draw_line() subclass to draw an object along a line.

ink is an array of double containing values to draw.

See also

vips_text(), vips_draw_line().

This method is not directly available to language bindings.

Parameters

ink

Type: An array of double

Value to draw.

The length of the array is specified in the n argument.
The data is owned by the caller of the method.
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.