Gegl.Curve¶

Subclasses:: None

Methods¶

Inherited:: GObject.Object (37)
Structs:: GObject.ObjectClass (5)

class	`new` (y_min, y_max)
class	`new_default` ()
	`add_point` (x, y)
	`calc_value` (x)
	`duplicate` ()
	`get_point` (index)
	`get_y_bounds` ()
	`num_points` ()
	`set_point` (index, x, y)

Virtual Methods¶

Inherited:: GObject.Object (7)

Properties¶

None

Signals¶

Inherited:: GObject.Object (1)

Fields¶

Inherited:: GObject.Object (1)

Name	Type	Access	Description
parent_instance	`GObject.Object`	r

Class Details¶

class Gegl.Curve(**kwargs)¶

Bases:: GObject.Object
Abstract:: No
Structure:: Gegl.CurveClass

classmethod new(y_min, y_max)¶

Parameters:

y_min (float) – minimum y value for curve.
y_max (float) – maximum y value for curve.

Return type:

Gegl.Curve

Create a Gegl.Curve that can store a curve with values between y_min and y_max.

Returns the newly created Gegl.Curve.

classmethod new_default()¶

Return type:: Gegl.Curve

Create a default Gegl.Curve with an identify mapping of (0.0..1.0) -> (0.0..1.0).

Returns the newly created default Gegl.Curve.

add_point(x, y)¶

Parameters:

x (float) – x coordinate
y (float) – y coordinate

Return type:

int

Add a point to the curve at x y (replacing the value exactly for x if it already exists.

calc_value(x)¶

Parameters:: x (float) –
Return type:: float

Retrieve the number of points in the curve.

Returns the number of points for the coordinates in the curve.

duplicate()¶

Returns:: A new copy of self.
Return type:: Gegl.Curve

Create a copy of self.

get_point(index)¶

Parameters:

index (int) – the position of the value number to retrieve.

Returns:

x:: x coordinate return location.
y:: y coordinate return location.

Return type:

(x: float, y: float)

Retrive the coordinates for an index.

get_y_bounds()¶

Returns:

min_y:: return location for minimal value.
max_y:: return location for maximal value.

Return type:

(min_y: float, max_y: float)

Get the bounds on the values of the curve and store the values in the return locaitons provided in min_y and max_y.

num_points()¶

Return type:: int

Retrieve the number of points in the curve.

Returns the number of points for the coordinates in the curve.

set_point(index, x, y)¶

Parameters:

index (int) – the position of the value number to retrieve.
x (float) – x coordinate
y (float) – y coordinate

Replace an existing point in a curve.