===== Primitive: Convolution with curve (set of connected skeleton line segments) =====

**Definition**: <m>sum{}{}{f(r)}</m>\\
f(x) is analytical convolution for a segment with Cauchy kernel [McCormack and Sherstyuk 1998]\\

**Call**: hfConvCurve(x,vect,S,T);

**Parameters**:

x - point coordinates

vect - coordinate array for vertices of curve

S - array of kernel width control parameters for each line segment

T - threshold

**Test file**: [[http://hyperfun.org/convcurve.hf|convcurve.hf]]