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HOpCreateNurbs3D Class Reference

The HOpCreateNurbs3D class provides support for the interactive construction of various surface types. More...

#include <HOpCreateNurbs3D.h>

Inheritance diagram for HOpCreateNurbs3D:

HBaseOperator

List of all members.

Public Member Functions

virtual HBaseOperatorClone ()
virtual const char * GetName ()
 HOpCreateNurbs3D (HBaseView *view, int DoRepeat=0, int DoCapture=1)
virtual int OnLButtonDown (HEventInfo &hevent)
virtual int OnLButtonDownAndMove (HEventInfo &hevent)
virtual int OnLButtonUp (HEventInfo &hevent)

Static Public Member Functions

static void EmitFinishNurbsEditing (HBaseView *pView, HC_KEY key, bool emit_message)
static void EmitModifyControlPointMessage (HBaseView *pView, HC_KEY key, int control_point, float x, float y, float z)
static void FinishNurbsEditingFromMessage (const char *in_data, unsigned int data_length, HBaseView *pView)
static HC_KEY InsertNurbs (HBaseView *pView, HNurbsSurface *pNurbsSurface, bool emit_message)
static void InsertNurbsFromMessage (const char *in_data, unsigned int data_length, HBaseView *m_pView)
static void ModifyControlPointFromMessage (const char *in_data, unsigned int data_length, HBaseView *pView)


Detailed Description

The HOpCreateNurbs3D class provides support for the interactive construction of various surface types.

HOpCreateNurbs3D implements three of the mouse event handlers defined on the base class to allow the user to interactively modify a nurbs surface by dragging it's control points with the mouse.

The operation consists of the following steps:

  1. Left Button Down: The operation is initiated and control point for dragging is specified.
  2. Left Button Down and Drag: The control point moves with mouse position and the surface is recalculated.
  3. Left Button Up: The surface editing is finalized.
More Detailed Description: see event methods.

Constructor & Destructor Documentation

HOpCreateNurbs3D::HOpCreateNurbs3D ( HBaseView view,
int  DoRepeat = 0,
int  DoCapture = 1 
)

Constructs an HOpCreateNurbs3D object.

Parameters:
view A pointer to an HBaseView object.
DoRepeat An integer denoting whether this is a repeatable operator. This parameter has been deprecated.
DoCapture An integer denoting whether the mouse state should be captured, which means that all mouse events should be received after a mousedown, even if it leaves the window. This parameter has been deprecated.


Member Function Documentation

virtual HBaseOperator* HOpCreateNurbs3D::Clone (  )  [virtual]

Creates a new operator which is a copy of the current operator. The user is responsible for deleting the newly created operator.

Returns:
A pointer to the newly created HOpCreateNurbs3D object.

Reimplemented from HBaseOperator.

static void HOpCreateNurbs3D::EmitFinishNurbsEditing ( HBaseView pView,
HC_KEY  key,
bool  emit_message 
) [static]

This method emits the finalized Nurbs editing message to other clients.

Parameters:
pView A pointer to the current view object.
key The surface key.
emit_message Indicates that a message should be sent to the emit_message_function, which (if implemented) would typically use the HOOPS/Net 'Send' function to dispatch the message to clients

static void HOpCreateNurbs3D::EmitModifyControlPointMessage ( HBaseView pView,
HC_KEY  key,
int  control_point,
float  x,
float  y,
float  z 
) [static]

This method sends a modify control point message to other clients.

Parameters:
pView A pointer to the current view object.
key The surface key.
control_point The number identifying the manipulated control point of surface.
x The new control point x position.
y The new control point y position.
z The new control point z position.

static void HOpCreateNurbs3D::FinishNurbsEditingFromMessage ( const char *  in_data,
unsigned int  data_length,
HBaseView pView 
) [static]

This method receives the Finish Nurbs editing message.

Parameters:
in_data A character pointer indicating the end of surface editing.
data_length The size of the message.
pView A pointer to the current view object.

Referenced by HNurbsMessageHandler::ProcessMessage().

virtual const char* HOpCreateNurbs3D::GetName (  )  [virtual]

Returns:
A pointer to a character string denoting the name of the operator which is 'HOpCreateNurbs3D'.

Reimplemented from HBaseOperator.

static HC_KEY HOpCreateNurbs3D::InsertNurbs ( HBaseView pView,
HNurbsSurface pNurbsSurface,
bool  emit_message 
) [static]

This method insert the given surface into the scene.

Parameters:
pView A pointer to the current view object.
pNurbsSurface A pointer to the nurbs surface object.
emit_message Indicates that a message should be sent to the emit_message_function, which (if implemented) would typically use the HOOPS/Net 'Send' function to dispatch the message to clients

static void HOpCreateNurbs3D::InsertNurbsFromMessage ( const char *  in_data,
unsigned int  data_length,
HBaseView m_pView 
) [static]

This method has been deprecated. This method inserts the surface into the scene based on the HNet message.

Parameters:
in_data A character pointer containing the surface data.
data_length The size of the message.
pView A pointer to the current view object.

Referenced by HNurbsMessageHandler::ProcessMessage().

static void HOpCreateNurbs3D::ModifyControlPointFromMessage ( const char *  in_data,
unsigned int  data_length,
HBaseView pView 
) [static]

This method receives a modify control points based on an HNet message.

Parameters:
in_data A character pointer containing the new control point data.
data_length The size of the message.
pView A pointer to the current view object.

Referenced by HNurbsMessageHandler::ProcessMessage().

virtual int HOpCreateNurbs3D::OnLButtonDown ( HEventInfo hevent  )  [virtual]

OnLButtonDown records the control point that will be used to manipulate the surface.

Parameters:
hevent An HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.

virtual int HOpCreateNurbs3D::OnLButtonDownAndMove ( HEventInfo hevent  )  [virtual]

OnLButtonDownAndMove receives control point manipulation information in plane parallel to viewplane and update the scene.

Parameters:
hevent An HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.

virtual int HOpCreateNurbs3D::OnLButtonUp ( HEventInfo hevent  )  [virtual]

OnLButtonUp finalizes nurbs manipulation.

Parameters:
hevent An HEventInfo object containing information about the current event.
Returns:
An HOperatorReturn indicating the status of the event.

Reimplemented from HBaseOperator.


The documentation for this class was generated from the following file: