# HPointKey

## Functions

| `HPointKey`
| `HPointKey`
| `HPointKey`
| `HPointKey`
bool | `operator`
bool | `operator>`
bool | `operator`
bool | `operator>=`

## Detailed Description

class HPointKey : public HPoint

  The HPointKey class is the data type of a three-dimensional point with compairison operators defined so the point can be used as a key in a container class (e.g. the STL).

  The HPointKey class encapsulates HPoint. HPointKey can be used as a key in STL containers.

  Public Functions

  inline HPointKey()

    The default constructor.

  inline HPointKey(float X, float Y, float Z = 0.0f)

    This constructor accepts floats for the x, y and z coordinates.

  inline HPointKey(HPoint const *p)

    This constructor accepts a pointer to an HPoint object.

  inline HPointKey(HPoint const &p)

    This constructor accepts an HPoint reference.

  inline bool operator<(HPointKey const &rhs) const
  inline bool operator>(HPointKey const &rhs) const
  inline bool operator<=(HPointKey const &rhs) const
  inline bool operator>=(HPointKey const &rhs) const