Sketcher_CommandCircleP2Tan.hxx

/**
* \file Sketcher_CommandCircleP2Tan.hxx
* \brief Header file for the class Sketcher_CommandCircleP2Tan
* \author <a href="mailto:sergmaslov@istel.ru?subject=Sketcher_CommandCircleP2Tan.hxx">Sergei Maslov</a>
*/
#ifndef Sketcher_CommandCircleP2Tan_H
#define Sketcher_CommandCircleP2Tan_H

#include "Sketcher_Command.hxx"
#include "Geom2d_Edge.hxx"
#include "Geom2d_Arc.hxx"

#include <gp_Circ2d.hxx>
#include <gp_Circ.hxx>
#include <Geom2d_Line.hxx>
#include <Geom2d_Circle.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom_Circle.hxx>

#include <AIS_Circle.hxx>
#include <Geom2dGcc_Circ2d3Tan.hxx>
#include <Geom2dAPI_ProjectPointOnCurve.hxx>

#define  MINIMUMDISTANCETOCURVE 100

class AIS_Circle;

DEFINE_STANDARD_HANDLE(Sketcher_CommandCircleP2Tan,Sketcher_Command)

//Command entering Circle by 3 tangential to curve
class Sketcher_CommandCircleP2Tan : public Sketcher_Command
{
public:
// Type management
DEFINE_STANDARD_RTTIEXT(Sketcher_CommandCircleP2Tan, Sketcher_Command)

enum	CircleP2TanAction { Nothing,Input_1CirclePoint,Input_2CircleTan,Input_3CircleTan };

/**
 * \fn Sketcher_CommandCircleP2Tan() 
 * \brief Constructs a Sketcher_CommandCircleP2Tan
 */
Standard_EXPORT	Sketcher_CommandCircleP2Tan();

/**
 * \fn ~Sketcher_CommandCircleP2Tan() 
 * \brief destructor
 */
Standard_EXPORT	~Sketcher_CommandCircleP2Tan();

/**
 * \fn Action() 
 * \brief turn command to active state 
 */
Standard_EXPORT	void Action();

/**
 * \fn MouseInputEvent(const gp_Pnt2d& thePnt2d )
 * \brief input event handler
 * \return Standard_Boolean 
 * \param thePnt2d const gp_Pnt2d&
 */
Standard_EXPORT	Standard_Boolean MouseInputEvent(const gp_Pnt2d& thePnt2d);

/**
 * \fn MouseMoveEvent(const gp_Pnt2d& thePnt2d )
 * \brief mouse move handler
 * \return void 
 * \param thePnt2d const gp_Pnt2d&
 */
Standard_EXPORT	void MouseMoveEvent(const gp_Pnt2d& thePnt2d);

/**
 * \fn CancelEvent()
 * \brief cancel event handler, stop entering object
 * \return void 
 */
Standard_EXPORT	void CancelEvent();

/**
 * \fn GetTypeOfMethod()
 * \brief get command Method
 * \return Sketcher_ObjectTypeOfMethod 
 */
Standard_EXPORT	Sketcher_ObjectTypeOfMethod GetTypeOfMethod();

private:
//methods

/**
 * \fn SelectCurve()
 * \brief selecy nearest curve
 * \return void
 */
Standard_EXPORT	void SelectCurve();

/**
 * \fn SumDistanceToCircle()
 * \brief select circle orientation 
 * \return Standard_Boolean
 */
Standard_EXPORT	Standard_Boolean SumDistanceToCircle ();

/**
 * \fn CheckgpObject()
 * \brief check object, is it possible to create tangent circle
 * \return Standard_Boolean
 */
Standard_EXPORT Standard_Boolean CheckgpObject();

/**
 * \fn StoregpObject()
 * \brief store objects for building tangent circle
 * \return Standard_Boolean
 */
Standard_EXPORT Standard_Boolean StoregpObject();

//members
CircleP2TanAction				myCircleP2TanAction;
Handle(Sketcher_Object)			mySObject;

Standard_Real					minDistance;
Standard_Real					curDistance;
Standard_Real					u2,u_temp;

gp_Pnt2d						tempPnt2d;
gp_Pnt2d						mySecondgp_Pnt2d;
Handle(Geom2d_CartesianPoint)	First2dPoint;

gp_Circ2d						temp_Circ2d;
gp_Circ							best_Circ;
Handle(AIS_Circle)				myRubberCircle;

Handle(Geom2d_Circle)			tempGeom2d_Circle;
Handle(Geom2d_Curve)			tempGeom2d_Curve;

Handle(Geom2d_Curve)			mySecond2d_Curve;
Handle(Geom_Circle)				tempGeom_Circle;


Standard_Boolean				gp_linExist;
Standard_Boolean				gp_circExist;
gp_Lin2d						gp_lin;
gp_Circ2d						gp_circ;

Geom2dAPI_ProjectPointOnCurve	myProjectOnCurve;

};

#endif