Class: Vips::Interpolate

Inherits:

Object
GObject::GObject
Object
Vips::Interpolate

Defined in:: lib/vips/interpolate.rb

Overview

An interpolator. One of these can be given to operations like Vips::Image#affine or Vips::Image#mapim to select the type of pixel interpolation to use.

To see all interpolators supported by your libvips, try

$ vips -l interpolate

But at least these should be available:

:nearest Nearest-neighbour interpolation.
:bilinear Bilinear interpolation.
:bicubic Bicubic interpolation.
:lbb Reduced halo bicubic interpolation.
:nohalo Edge sharpening resampler with halo reduction.
:vsqbs B-Splines with antialiasing smoothing.

For example:

ruby im = im.affine [2, 0, 0, 2], :interpolate => Vips::Interpolate.new(:bicubic)

Defined Under Namespace

Modules: InterpolateLayout Classes: ManagedStruct , Struct

Instance Attribute Summary

Attributes inherited from GObject::GObject

#ptr , #references

Instance Method Summary collapse

#initialize(name) ⇒ Interpolate constructor

A new instance of Interpolate.

Methods inherited from Object

#get , #get_pspec , #get_typeof , #get_typeof_error , print_all , #set , #signal_connect

Methods inherited from GObject::GObject

#ffi_managed_struct , ffi_managed_struct , #ffi_struct , ffi_struct

Constructor Details

#initialize(name) ⇒ `Interpolate`

Returns a new instance of Interpolate.

Raises:

(Vips::Error )

# File 'lib/vips/interpolate.rb', line 50
def initialize name
 name = name.to_s if name.is_a? Symbol
 ptr = Vips .vips_interpolate_new name
 raise Vips ::Error  if ptr.nil?
 super ptr
end