Method
GimpVectorsstroke_get_point_at_dist
since: 2.4
Declaration [src]
gboolean
gimp_vectors_stroke_get_point_at_dist (
GimpVectors* vectors,
gint stroke_id,
gdouble dist,
gdouble precision,
gdouble* x_point,
gdouble* y_point,
gdouble* slope,
gboolean* valid
)
Description [src]
Get point at a specified distance along the stroke.
This will return the x,y position of a point at a given distance along the stroke. The distance will be obtained by first digitizing the curve internally and then walking along the curve. For a closed stroke the start of the path is the first point on the path that was created. This might not be obvious. If the stroke is not long enough, a "valid" flag will be FALSE.
Available since: 2.4
Parameters
stroke_id-
Type:
gintThe stroke ID.
dist-
Type:
gdoubleThe given distance.
precision-
Type:
gdoubleThe precision used for the approximation.
x_point-
Type:
gdouble*The x position of the point.
The argument will be set by the function. y_point-
Type:
gdouble*The y position of the point.
The argument will be set by the function. slope-
Type:
gdouble*The slope (dy / dx) at the specified point.
The argument will be set by the function. valid-
Type:
gboolean*Indicator for the validity of the returned data.
The argument will be set by the function.