# HBSurfVertex

## Fields

double | `x`
double | `y`
double | `z`
double | `w`

## Functions

void | `Set`

## Detailed Description

class HBSurfVertex

  The HBSurfVertex class is the data type of a B-Surface vertex.

  HBSurfVertex represents a B-Surface vertex and requires a knot value w in addition to x, y and z coordinates.

  Public Functions

  inline void Set(double X, double Y, double Z, double W)

    Set packs an HBSurfVertex object with coordinate and knot values.

  Public Members

  double x

    The x-coordinate of a B-Surface vertex.

  double y

    The y-coordinate of a B-Surface vertex.

  double z

    The z-coordinate of a B-Surface vertex.

  double w

    The knot value of a B-Surface vertex.