Class
VipsInterpolate
Description [src]
abstract class Vips.Interpolate : Vips.Object {
parent_object: VipsObject
}An abstract base class for the various interpolation functions.
Use vips --list VipsInterpolate to see all the interpolators available.
An interpolator consists of a function to perform the interpolation, plus some extra data fields which tells libvips how to call the function and what data it needs.
Constructors
vips_interpolate_new
Look up an interpolator from a nickname and make one. You need to free the
result with g_object_unref() when you’re done with it.
Functions
vips_interpolate_bilinear_static
A convenience function that returns a bilinear interpolator you don’t need to free.
vips_interpolate_nearest_static
A convenience function that returns a nearest-neighbour interpolator you don’t need to free.
Instance methods
vips_interpolate
Look up the interpolate method in the class and call it. Use
vips_interpolate_get_method() to get a direct pointer to the function and
avoid the lookup overhead.
vips_interpolate_get_method
Look up the interpolate method in the class and return it. Use this
instead of vips_interpolate() to cache method dispatch.
vips_interpolate_get_window_offset
Look up an interpolators desired window offset.
vips_interpolate_get_window_size
Look up an interpolators desired window size.
Methods inherited from VipsObject (27)
Methods inherited from GObject (42)
Properties
Properties inherited from VipsObject (2)
Signals
Signals inherited from VipsObject (4)
Vips.Object::close
The ::close signal is emitted once during object close. The object is dying and may not work.
Vips.Object::postbuild
The ::postbuild signal is emitted once just after successful object construction. Return non-zero to cause object construction to fail.
Vips.Object::postclose
The ::postclose signal is emitted once after object close. The object pointer is still valid, but nothing else.
Vips.Object::preclose
The ::preclose signal is emitted once just before object close starts. The object is still alive.
Signals inherited from GObject (1)
GObject.Object::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Class structure
struct VipsInterpolateClass {
VipsObjectClass parent_class;
VipsInterpolateMethod interpolate;
int (* get_window_size) (
VipsInterpolate* interpolate
);
int window_size;
int (* get_window_offset) (
VipsInterpolate* interpolate
);
int window_offset;
}Class members
parent_class |
|
| No description available. | |
interpolate |
|
The interpolation method. |
|
get_window_size |
|
| No description available. | |
window_size |
|
Or just set this for a constant window size. |
|
get_window_offset |
|
| No description available. | |
window_offset |
|
Or just set this for a constant window offset. |
Virtual methods
Vips.InterpolateClass.get_window_offset
Look up an interpolators desired window offset.
Vips.InterpolateClass.get_window_size
Look up an interpolators desired window size.