# TK_Ellipse

## Functions

| `TK_Ellipse`
`TK_Status` | `Read`
`TK_Status` | `Write`
`TK_Status` | `Clone`
`TK_Status` | `ReadAscii`
`TK_Status` | `WriteAscii`
void | `SetCenter`
void | `SetCenter`
float const * | `GetCenter`
void | `SetMajor`
void | `SetMajor`
float const * | `GetMajor`
void | `SetMinor`
void | `SetMinor`
float const * | `GetMinor`
void | `SetDCenter`
void | `SetDCenter`
double const * | `GetDCenter`
void | `SetDMajor`
void | `SetDMajor`
double const * | `GetDMajor`
void | `SetDMinor`
void | `SetDMinor`
double const * | `GetDMinor`
void | `SetLimits`
float const * | `GetLimits`

## Detailed Description

class `TK_Ellipse` : public BBaseOpcodeHandler

  Handles the TKE_Ellipse and TKE_Elliptical_Arc opcodes.

  TK_Ellipse provides support for writing/reading the TKE_Ellipse and TKE_Elliptical_Arc opcode objects to/from an HSF file.

  The HOOPS/3dGS scene-graph can contain ‘ellipse’ and ‘elliptical arc’ primitives which are defined by center, major and minor points, as well as two parameterization values in the case of an elliptical arc.

  Subclassed by HTK_Ellipse

  Public Functions

  inline `TK_Ellipse`(unsigned char opcode)

    constructor

  virtual TK_Status `Read`(BStreamFileToolkit &tk)

    Reads data from the toolkit buffer, decodes/decompresses it, and maps it to the opcode handlers data members. User-defined classes which need to write out custom data should utilize one of the available GetData() methods.

    Parameters: | tk – A reference to the BStreamFileToolkit object.
    Returns: | The result of the function call.

  virtual TK_Status `Write`(BStreamFileToolkit &tk)

    Encodes/compresses data and writes data to the toolkit buffer. User-defined classes which need to write out custom data should utilize one of the available PutData() methods, and first write out the opcode associated with the group of binary data followed by the data itself.

    Parameters: | tk – A reference to the BStreamFileToolkit object.
    Returns: | The result of the function call.

  virtual TK_Status `Clone`(BStreamFileToolkit &tk, BBaseOpcodeHandler **handler) const

    Copies the opcode handler

    Parameters: | tk – A reference to the BStreamFileToolkit object. handler – A pointer to the opcode handler object. Passed by reference.
    Returns: | The result of the function call.

  TK_Status `ReadAscii`(BStreamFileToolkit &tk)

    Deprecated.

  TK_Status `WriteAscii`(BStreamFileToolkit &tk)

    Deprecated.

  inline void `SetCenter`(float x, float y, float z)

    Sets the center of the arc using discrete float values

  inline void `SetCenter`(float const s[])

    Sets the center of the arc using a float triplet

  inline float const *`GetCenter`() const

    Returns the center of the arc as the address of a float triplet

  inline void `SetMajor`(float x, float y, float z)

    Sets the major axis of the arc using discrete float values

  inline void `SetMajor`(float const m[])

    Sets the major axis of the arc using a float triplet

  inline float const *`GetMajor`() const

    Returns the major axis of the arc as the address of a float triplet

  inline void `SetMinor`(float x, float y, float z)

    Sets the minor axis of the arc using discrete float values

  inline void `SetMinor`(float const m[])

    Sets the minor axis of the arc using a float triplet

  inline float const *`GetMinor`() const

    Returns the minor axis of the arc as the address of a float triplet

  inline void `SetDCenter`(double x, double y, double z)

    Sets the center of the arc using discrete double values

  inline void `SetDCenter`(double const s[])

    Sets the center of the arc using a float triplet

  inline double const *`GetDCenter`() const

    Returns the center of the arc as the address of a float triplet

  inline void `SetDMajor`(double x, double y, double z)

    Sets the major axis of the arc using discrete float values

  inline void `SetDMajor`(double const m[])

    Sets the major axis of the arc using a float triplet

  inline double const *`GetDMajor`() const

    Returns the major axis of the arc as the address of a float triplet

  inline void `SetDMinor`(double x, double y, double z)

    Sets the minor axis of the arc using discrete float values

  inline void `SetDMinor`(double const m[])

    Sets the minor axis of the arc using a float triplet

  inline double const *`GetDMinor`() const

    Returns the minor axis of the arc as the address of a float triplet

  inline void `SetLimits`(float s, float e)

    Sets the parametric limits of the arc using discrete values

  inline float const *`GetLimits`() const

    Returns the parametric limits of the arc as the address of a float pair

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