
 gp_Parab () 
 Creates an indefinite Parabola. More...


 gp_Parab (const gp_Ax2 &theA2, const Standard_Real theFocal) 
 Creates a parabola with its local coordinate system "theA2" and it's focal length "Focal". The XDirection of theA2 defines the axis of symmetry of the parabola. The YDirection of theA2 is parallel to the directrix of the parabola. The Location point of theA2 is the vertex of the parabola Raises ConstructionError if theFocal < 0.0 Raised if theFocal < 0.0. More...


 gp_Parab (const gp_Ax1 &theD, const gp_Pnt &theF) 
 theD is the directrix of the parabola and theF the focus point. The symmetry axis (XAxis) of the parabola is normal to the directrix and pass through the focus point theF, but its location point is the vertex of the parabola. The YAxis of the parabola is parallel to theD and its location point is the vertex of the parabola. The normal to the plane of the parabola is the cross product between the XAxis and the YAxis. More...


void  SetAxis (const gp_Ax1 &theA1) 
 Modifies this parabola by redefining its local coordinate system so that. More...


void  SetFocal (const Standard_Real theFocal) 
 Changes the focal distance of the parabola. Raises ConstructionError if theFocal < 0.0. More...


void  SetLocation (const gp_Pnt &theP) 
 Changes the location of the parabola. It is the vertex of the parabola. More...


void  SetPosition (const gp_Ax2 &theA2) 
 Changes the local coordinate system of the parabola. More...


const gp_Ax1 &  Axis () const 
 Returns the main axis of the parabola. It is the axis normal to the plane of the parabola passing through the vertex of the parabola. More...


gp_Ax1  Directrix () const 
 Computes the directrix of this parabola. The directrix is: More...


Standard_Real  Focal () const 
 Returns the distance between the vertex and the focus of the parabola. More...


gp_Pnt  Focus () const 

const gp_Pnt &  Location () const 
 Returns the vertex of the parabola. It is the "Location" point of the coordinate system of the parabola. More...


Standard_Real  Parameter () const 
 Computes the parameter of the parabola. It is the distance between the focus and the directrix of the parabola. This distance is twice the focal length. More...


const gp_Ax2 &  Position () const 
 Returns the local coordinate system of the parabola. More...


gp_Ax1  XAxis () const 
 Returns the symmetry axis of the parabola. The location point of the axis is the vertex of the parabola. More...


gp_Ax1  YAxis () const 
 It is an axis parallel to the directrix of the parabola. The location point of this axis is the vertex of the parabola. More...


void  Mirror (const gp_Pnt &theP) 

gp_Parab  Mirrored (const gp_Pnt &theP) const 
 Performs the symmetrical transformation of a parabola with respect to the point theP which is the center of the symmetry. More...


void  Mirror (const gp_Ax1 &theA1) 

gp_Parab  Mirrored (const gp_Ax1 &theA1) const 
 Performs the symmetrical transformation of a parabola with respect to an axis placement which is the axis of the symmetry. More...


void  Mirror (const gp_Ax2 &theA2) 

gp_Parab  Mirrored (const gp_Ax2 &theA2) const 
 Performs the symmetrical transformation of a parabola with respect to a plane. The axis placement theA2 locates the plane of the symmetry (Location, XDirection, YDirection). More...


void  Rotate (const gp_Ax1 &theA1, const Standard_Real theAng) 

gp_Parab  Rotated (const gp_Ax1 &theA1, const Standard_Real theAng) const 
 Rotates a parabola. theA1 is the axis of the rotation. Ang is the angular value of the rotation in radians. More...


void  Scale (const gp_Pnt &theP, const Standard_Real theS) 

gp_Parab  Scaled (const gp_Pnt &theP, const Standard_Real theS) const 
 Scales a parabola. theS is the scaling value. If theS is negative the direction of the symmetry axis XAxis is reversed and the direction of the YAxis too. More...


void  Transform (const gp_Trsf &theT) 

gp_Parab  Transformed (const gp_Trsf &theT) const 
 Transforms a parabola with the transformation theT from class Trsf. More...


void  Translate (const gp_Vec &theV) 

gp_Parab  Translated (const gp_Vec &theV) const 
 Translates a parabola in the direction of the vector theV. The magnitude of the translation is the vector's magnitude. More...


void  Translate (const gp_Pnt &theP1, const gp_Pnt &theP2) 

gp_Parab  Translated (const gp_Pnt &theP1, const gp_Pnt &theP2) const 
 Translates a parabola from the point theP1 to the point theP2. More...

