The HOpConstructNurbsCurve class provides support for constructing a Non Uniform Rational B-Spline (NURBS) curve and inserting it into the model. More...
#include <HOpConstructNurbsCurve.h>
Public Member Functions | |
virtual HBaseOperator * | Clone () |
virtual const char * | GetName () |
HOpConstructNurbsCurve (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
virtual int | OnLButtonDblClk (HEventInfo &hevent) |
virtual int | OnLButtonDown (HEventInfo &hevent) |
virtual int | OnMButtonDown (HEventInfo &hevent) |
virtual int | OnNoButtonDownAndMove (HEventInfo &hevent) |
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HOpConstructPolyline (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
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int | Capture () |
Returns whether we are currently in mouse capture mode. See this class' constructor for a more detailed description of what this means. This method has been deprecated. | |
HPoint const | GetFirstPoint () |
Returns the initial selection point. | |
HPoint const | GetNewPoint () |
Returns the current selection point. | |
HBaseView * | GetView () |
Returns a pointer to the view that this operator is associated with. | |
HBaseOperator (HBaseView *view, int DoRepeat=0, int DoCapture=1) | |
virtual int | OnKeyDown (HEventInfo &hevent) |
virtual int | OnKeyUp (HEventInfo &hevent) |
virtual int | OnLButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnLButtonUp (HEventInfo &hevent) |
virtual int | OnLRButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnMButtonDblClk (HEventInfo &hevent) |
virtual int | OnMButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnMButtonUp (HEventInfo &hevent) |
virtual int | OnMouseMove (HEventInfo &hevent) |
virtual int | OnMouseWheel (HEventInfo &hevent) |
virtual int | OnRButtonDblClk (HEventInfo &hevent) |
virtual int | OnRButtonDown (HEventInfo &hevent) |
virtual int | OnRButtonDownAndMove (HEventInfo &hevent) |
virtual int | OnRButtonUp (HEventInfo &hevent) |
virtual int | OnTimer (HEventInfo &hevent) |
virtual int | OnTouchesDown (HEventInfo &hevent) |
virtual int | OnTouchesMove (HEventInfo &hevent) |
virtual int | OnTouchesUp (HEventInfo &hevent) |
virtual bool | OperatorStarted () |
Operator has been started if true, and has not been started if false. | |
int | Repeat () |
Returns whether the operation is repeatable. This method has been deprecated. | |
void | SetFirstPoint (HPoint const &new_point) |
Sets the initial selection point. | |
void | SetMapTouchesToMouseEvents (bool val) |
Touch Events are mapped to mouse events if true, and are not if false. | |
void | SetNewPoint (HPoint const &new_point) |
Sets the current selection point. | |
void | SetOperatorStarted (bool val) |
Operator has been started if true, and has not been started if false. | |
void | SetView (HBaseView *new_view) |
Sets the view that this operator is associated with. | |
Protected Attributes | |
bool | m_bFirstTimeThrough |
int | m_Degree |
int | m_EndU |
float * | m_KnotsArray |
int | m_StartU |
float * | m_WeightsArray |
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int | m_PolylineCount |
HPoint * | m_pPolyline |
HPoint | m_ptLast |
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bool | m_bMapTouchesToMouseEvents |
Indicates if touch events are mapped to mouse events. | |
bool | m_bOpStarted |
Indicates whether the operator has already 'started'. More... | |
int | m_doCapture |
Integer indicating whether to capture mouse on button down and release on button up. This parameter has been deprecated. | |
int | m_doRepeat |
Integer indicating if the operator is repeatable . This parameter has been deprecated. | |
HPoint | m_ptFirst |
Initial selection point. | |
HPoint | m_ptNew |
Current selection point. | |
HBaseView * | m_pView |
The HOOPS view corresponding to this operator. | |
HCutGeometryVisibility | m_TempCutGeometryVisibility |
stores original cut geometry visibility | |
HShadowMode | m_TempShadowMode |
stores original shadow mode | |
Additional Inherited Members | |
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HC_KEY | m_PolylineKey |
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bool | IsSpecialKey (HC_KEY key) |
Detailed Description
The HOpConstructNurbsCurve class provides support for constructing a Non Uniform Rational B-Spline (NURBS) curve and inserting it into the model.
HOpConstructNurbsCurve implements one of the mouse event handlers defined on the base class and extends three of the mouse event handlers defined on HOpConstructPolyline. The class employs all of the drawing functionality of HOpConstructPolyline to draw a temporary, overlayed NURBS curve and associated 'control polyline' in the view plane, and then uses the HOOPS routine HC_Insert_NURBS_Curve to add a curve to the model.
The operation consists of the following steps:
- Left Button Down: The operation is initiated and the first point of the curve is recorded.
- No Button Down and Drag: Rubberbands the line segment to a desired position for the next point.
- Left Button Down: The next point on curve is recorded and the cycle continues until a left button double click event occurs.
- Left Button Double Click: The curve is finalized, the temporary control polyline is flushed and the NURBS curve is inserted into the model.
More Detailed Description: see event methods.
Constructor & Destructor Documentation
◆ HOpConstructNurbsCurve()
HOpConstructNurbsCurve::HOpConstructNurbsCurve | ( | HBaseView * | view, |
int | DoRepeat = 0 , |
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int | DoCapture = 1 |
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Constructs an HOpConstructNurbsCurve 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
◆ Clone()
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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 HOpConstructNurbsCurve object.
Reimplemented from HOpConstructPolyline.
Reimplemented in HOpCreateNurbsCurve.
◆ GetName()
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virtual |
- Returns
- A pointer to a character string denoting the name of the operator, which is 'HOpConstructNurbsCurve'.
Reimplemented from HOpConstructPolyline.
Reimplemented in HOpCreateNurbsCurve.
◆ OnLButtonDblClk()
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virtual |
OnLButtonDblClk directs the final mouse position into the temp array, then inserts the array into the database as a NURBS curve. This function also takes care of any cleanup.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HOpConstructPolyline.
Reimplemented in HOpCreateNurbsCurve.
◆ OnLButtonDown()
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virtual |
OnLButtonDown records the first mouse position and initiates the polyline-drawing mechanism used in HOpConstructPolyline. When the number of points in the polyline array exceeds the degree of the NURBS curve where the default is 2, OnLButtonDown replaces the construction polyline with a construction NURBS curve.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HOpConstructPolyline.
◆ OnMButtonDown()
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virtual |
OnMButtonDown passes a middle-button down event to OnLButtonDown.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HBaseOperator.
◆ OnNoButtonDownAndMove()
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virtual |
OnNoButtonDownAndMove draws a rubberbanded polyline from the previous point in the array to the current mouse position. If the number of points in the array has exceeded the degree of the NURBS curve where the default is 2, the polyline construction segments will already have been replaced with a NURBS curve. In this case, OnNoButtonDownAndMove replaces the entire construction NURBS curve with an updated version that accounts for the current pointer position.
- Parameters
-
hevent An HEventInfo object containing information about the current event.
- Returns
- An HOperatorReturn indicating the status of the event.
Reimplemented from HOpConstructPolyline.
The documentation for this class was generated from the following file: