#include <IGESGeom_ConicArc.hxx>
Inheritance diagram for IGESGeom_ConicArc:
Public Member Functions | |
Standard_EXPORT | IGESGeom_ConicArc () |
Standard_EXPORT void | Init (const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D, const Standard_Real E, const Standard_Real F, const Standard_Real ZT, const gp_XY &aStart, const gp_XY &anEnd) |
This method is used to set the fields of the class ConicalArc - A, B, C, D, E, F : Coefficients of the equation defining conic arc - ZT : Parallel ZT displacement of the arc from XT, YT plane. - aStart : Starting point of the conic arc - anEnd : End point of the conic arc . | |
Standard_EXPORT Standard_Boolean | OwnCorrect () |
sets the Form Number equal to ComputedFormNumber, returns True if changed | |
Standard_EXPORT Standard_Integer | ComputedFormNumber () const |
Computes the Form Number according to the equation 1 for Ellipse, 2 for Hyperbola, 3 for Parabola . | |
Standard_EXPORT void | Equation (Standard_Real &A, Standard_Real &B, Standard_Real &C, Standard_Real &D, Standard_Real &E, Standard_Real &F) const |
Standard_EXPORT Standard_Real | ZPlane () const |
returns the Z displacement of the arc from XT, YT plane | |
Standard_EXPORT gp_Pnt2d | StartPoint () const |
returns the starting point of the arc | |
Standard_EXPORT gp_Pnt | TransformedStartPoint () const |
returns the starting point of the arc after applying Transf. Matrix | |
Standard_EXPORT gp_Pnt2d | EndPoint () const |
returns the end point of the arc | |
Standard_EXPORT gp_Pnt | TransformedEndPoint () const |
returns the end point of the arc after applying Transf. Matrix | |
Standard_EXPORT Standard_Boolean | IsFromEllipse () const |
returns True if parent conic curve is an ellipse | |
Standard_EXPORT Standard_Boolean | IsFromParabola () const |
returns True if parent conic curve is a parabola | |
Standard_EXPORT Standard_Boolean | IsFromHyperbola () const |
returns True if parent conic curve is a hyperbola | |
Standard_EXPORT Standard_Boolean | IsClosed () const |
returns True if StartPoint = EndPoint | |
Standard_EXPORT gp_Dir | Axis () const |
Z-Axis of conic (i.e. [0,0,1]) . | |
Standard_EXPORT gp_Dir | TransformedAxis () const |
Z-Axis after applying Trans. Matrix . | |
Standard_EXPORT void | Definition (gp_Pnt &Center, gp_Dir &MainAxis, Standard_Real &rmin, Standard_Real &rmax) const |
Returns a Definition computed from equation, easier to use a parabola) (defined with Z displacement) <mainaxis> : the Main Axis of the conic (for a Circle, arbitrary the X Axis) <Rmin,Rmax> : Minor and Major Radii of the conic For a Circle, Rmin = Rmax, For a Parabola, Rmin = Rmax = the Focal Warning : the basic definition (by equation) is not very stable, limit cases may be approximative . | |
Standard_EXPORT void | TransformedDefinition (gp_Pnt &Center, gp_Dir &MainAxis, Standard_Real &rmin, Standard_Real &rmax) const |
Same as Definition, but the Location is applied on the Center and the MainAxis . | |
Standard_EXPORT void | ComputedDefinition (Standard_Real &Xcen, Standard_Real &Ycen, Standard_Real &Xax, Standard_Real &Yax, Standard_Real &Rmin, Standard_Real &Rmax) const |
Computes and returns the coordinates of the definition of a comic from its equation. Used by Definition & TransformedDefinition, or may be called directly if needed . | |
Standard_EXPORT const | Handle (Standard_Type)&DynamicType() const |
Private Attributes | |
Standard_Real | theA |
Standard_Real | theB |
Standard_Real | theC |
Standard_Real | theD |
Standard_Real | theE |
Standard_Real | theF |
Standard_Real | theZT |
gp_XY | theStart |
gp_XY | theEnd |
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Reimplemented from IGESData_IGESEntity. |
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