Method
GimpDrawablecurves_spline
deprecated: 3.2 since: 2.10
Declaration [src]
gboolean
gimp_drawable_curves_spline (
GimpDrawable* drawable,
GimpHistogramChannel channel,
gsize num_coordinates,
const gdouble* points
)
Description [src]
Modifies the intensity curve(s) for specified drawable.
Modifies the intensity mapping for one channel in the specified
drawable. The channel can be either an intensity component, or the value.
The points parameter is an array of doubles in the range [0, 1]
which define a set of control points which describe a Catmull Rom
spline which yields the final intensity curve. Since every point has
2 coordinates, the size of points (num_coordinates) must be a
multiple of 2, equal or bigger than 4 (i.e. a minimum of 2 points).
Use gimp_drawable_curves_explicit() to explicitly modify
intensity levels.
Available since: 2.10
Deprecated since: 3.2
Use filter “gimp:curves” instead.
Parameters
channel-
Type:
GimpHistogramChannelThe channel to modify.
num_coordinates-
Type:
gsizeThe number of coordinates (2 per points) in the control point array.
points-
Type: An array of
doubleThe spline control points: { cp1.x, cp1.y, cp2.x, cp2.y, … }.
The length of the array is specified in the num_coordinatesargument.The data is owned by the caller of the method.