GCE2d_MakeSegment Class Reference

Implements construction algorithms for a line
segment in the plane. The result is a
Geom2d_TrimmedCurve curve.
A MakeSegment object provides a framework for:
More...

#include <GCE2d_MakeSegment.hxx>

Inheritance diagram for GCE2d_MakeSegment:

Public Member Functions
	GCE2d_MakeSegment (const gp_Pnt2d &P1, const gp_Pnt2d &P2)
	Make a segment of Line from the 2 points <P1> and <P2>. Status is "ConfusedPoints" if <P1> and <P2> are confused. More...
	GCE2d_MakeSegment (const gp_Pnt2d &P1, const gp_Dir2d &V, const gp_Pnt2d &P2)
	Make a segment of Line from the point <P1> with the direction. More...
	GCE2d_MakeSegment (const gp_Lin2d &Line, const Standard_Real U1, const Standard_Real U2)
	Make a segment of Line from the line <Line> between the two parameters U1 and U2. Status is "SameParamters" if <U1> is equal <U2>. More...
	GCE2d_MakeSegment (const gp_Lin2d &Line, const gp_Pnt2d &Point, const Standard_Real Ulast)
	Make a segment of Line from the line <Line> between the point <Point> and the parameter Ulast. It returns NullObject if <U1> is equal <U2>. More...
	GCE2d_MakeSegment (const gp_Lin2d &Line, const gp_Pnt2d &P1, const gp_Pnt2d &P2)
	Make a segment of Line from the line <Line> <br> between the two points <P1> and <P2>. <br> It returns NullObject if <P1> and <P2> are confused. <br> Warning If the points which limit the segment are coincident for given points or for the projection of given points on the line which supports the line segment (that is, when IsDone returns false), the Status function returns gce_ConfusedPoints. This warning only concerns the first two constructors. More...
const Handle_Geom2d_TrimmedCurve &	Value () const
	Returns the constructed line segment. <br> Exceptions StdFail_NotDone if no line segment is constructed. More...
const Handle_Geom2d_TrimmedCurve &	Operator () const
	operator Handle_Geom2d_TrimmedCurve () const
Public Member Functions inherited from GCE2d_Root
Standard_Boolean	IsDone () const
	Returns true if the construction is successful. More...
gce_ErrorType	Status () const
	Returns the status of the construction More...

Additional Inherited Members
Protected Attributes inherited from GCE2d_Root
gce_ErrorType	TheError

Detailed Description

Implements construction algorithms for a line
segment in the plane. The result is a
Geom2d_TrimmedCurve curve.
A MakeSegment object provides a framework for:

• defining the construction of the line segment,
  
• implementing the construction algorithm, and
  
• consulting the results. In particular, the Value
  function returns the constructed line segment.
  

Constructor & Destructor Documentation

GCE2d_MakeSegment::GCE2d_MakeSegment	(	const gp_Pnt2d &	P1,
		const gp_Pnt2d &	P2
	)

Make a segment of Line from the 2 points <P1> and <P2>.
Status is "ConfusedPoints" if <P1> and <P2> are confused.

GCE2d_MakeSegment::GCE2d_MakeSegment	(	const gp_Pnt2d &	P1,
		const gp_Dir2d &	V,
		const gp_Pnt2d &	P2
	)

Make a segment of Line from the point <P1> with
the direction.

and ended by the projection of
<P2> on the line <P1,V>.
Status is "ConfusedPoints" if <P1> and <P2> are confused.

GCE2d_MakeSegment::GCE2d_MakeSegment	(	const gp_Lin2d &	Line,
		const Standard_Real	U1,
		const Standard_Real	U2
	)

Make a segment of Line from the line <Line>
between the two parameters U1 and U2.
Status is "SameParamters" if <U1> is equal <U2>.

GCE2d_MakeSegment::GCE2d_MakeSegment	(	const gp_Lin2d &	Line,
		const gp_Pnt2d &	Point,
		const Standard_Real	Ulast
	)

Make a segment of Line from the line <Line>
between the point <Point> and the parameter Ulast.
It returns NullObject if <U1> is equal <U2>.

GCE2d_MakeSegment::GCE2d_MakeSegment	(	const gp_Lin2d &	Line,
		const gp_Pnt2d &	P1,
		const gp_Pnt2d &	P2
	)

 Make a segment of Line from the line <Line> <br>
     between the two points <P1> and <P2>. <br>
     It returns NullObject if <P1> and <P2> are confused. <br>

Warning
If the points which limit the segment are coincident
for given points or for the projection of given points
on the line which supports the line segment (that is,
when IsDone returns false), the Status function
returns gce_ConfusedPoints. This warning only
concerns the first two constructors.

Member Function Documentation

const Handle_Geom2d_TrimmedCurve& GCE2d_MakeSegment::Operator

(

)

const

GCE2d_MakeSegment::operator Handle_Geom2d_TrimmedCurve

(

)

const

const Handle_Geom2d_TrimmedCurve& GCE2d_MakeSegment::Value

(

)

const

 Returns the constructed line segment. <br>

Exceptions StdFail_NotDone if no line segment is constructed.

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

• GCE2d_MakeSegment.hxx