Method
GimpDrawablecurves_spline
since: 2.10
Declaration [src]
gboolean
gimp_drawable_curves_spline (
GimpDrawable* drawable,
GimpHistogramChannel channel,
gsize num_points,
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 which define a
set of control points which describe a Catmull Rom spline which
yields the final intensity curve. Use the
gimp_drawable_curves_explicit() function to explicitly modify
intensity levels.
Available since: 2.10
Parameters
channel-
Type:
GimpHistogramChannelThe channel to modify.
num_points-
Type:
gsizeThe number of values 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_pointsargument.The data is owned by the caller of the function.