AnyCAD Rapid API 2024
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Public 成员函数  
GDir ()  
GDir (GVec theV)  
GDir (GXYZ theCoord)  
GDir (double theXv, double theYv, double theZv)  
void  SetCoord (int theIndex, double theXi) 
void  SetCoord (double theXv, double theYv, double theZv) 
void  SetX (double theX) 
void  SetY (double theY) 
void  SetZ (double theZ) 
void  SetXYZ (GXYZ theCoord) 
double  Coord (int theIndex) 
void  Coord (double[] theXv, double[] theYv, double[] theZv) 
double  X () 
double  Y () 
double  Z () 
GXYZ  XYZ () 
boolean  IsEqual (GDir theOther, double theAngularTolerance) 
boolean  IsNormal (GDir theOther, double theAngularTolerance) 
boolean  IsOpposite (GDir theOther, double theAngularTolerance) 
boolean  IsParallel (GDir theOther, double theAngularTolerance) 
double  Angle (GDir theOther) 
double  AngleWithRef (GDir theOther, GDir theVRef) 
void  Cross (GDir theRight) 
GDir  Crossed (GDir theRight) 
void  CrossCross (GDir theV1, GDir theV2) 
GDir  CrossCrossed (GDir theV1, GDir theV2) 
double  Dot (GDir theOther) 
double  DotCross (GDir theV1, GDir theV2) 
void  Reverse () 
GDir  Reversed () 
void  Mirror (GDir theV) 
GDir  Mirrored (GDir theV) 
void  Mirror (GAx1 theA1) 
GDir  Mirrored (GAx1 theA1) 
void  Mirror (GAx2 theA2) 
GDir  Mirrored (GAx2 theA2) 
void  Rotate (GAx1 theA1, double theAng) 
GDir  Rotated (GAx1 theA1, double theAng) 
void  Transform (GTrsf theT) 
GDir  Transformed (GTrsf theT) 
Describes a unit vector in 3D space. This unit vector is also called "Direction". See Also gce_MakeDir which provides functions for more complex unit vector constructions Geom_Direction which provides additional functions for constructing unit vectors and works, in particular, with the parametric equations of unit vectors.
GDir.GDir  (  ) 
Creates a direction corresponding to X axis.
GDir.GDir  (  GVec  theV  ) 
Normalizes the vector theV and creates a direction. Raises ConstructionError if theV.Magnitude() <= Resolution.
GDir.GDir  (  GXYZ  theCoord  ) 
Creates a direction from a triplet of coordinates. Raises ConstructionError if theCoord.Modulus() <= Resolution from gp.
GDir.GDir  (  double  theXv, 
double  theYv,  
double  theZv ) 
Creates a direction with its 3 cartesian coordinates. Raises ConstructionError if Sqrt(theXv*theXv + theYv*theYv + theZv*theZv) <= Resolution Modification of the direction's coordinates If Sqrt (theXv*theXv + theYv*theYv + theZv*theZv) <= Resolution from gp where theXv, theYv ,theZv are the new coordinates it is not possible to construct the direction and the method raises the exception ConstructionError.
double GDir.Angle  (  GDir  theOther  ) 
Computes the angular value in radians between <me> and <theOther>. This value is always positive in 3D space. Returns the angle in the range [0, PI]
Computes the angular value between <me> and <theOther>. <theVRef> is the direction of reference normal to <me> and <theOther> and its orientation gives the positive sense of rotation. If the cross product <me> ^ <theOther> has the same orientation as <theVRef> the angular value is positive else negative. Returns the angular value in the range PI and PI (in radians). Raises DomainError if <me> and <theOther> are not parallel this exception is raised when <theVRef> is in the same plane as <me> and <theOther> The tolerance criterion is Resolution from package gp.
void GDir.Coord  (  double[]  theXv, 
double[]  theYv,  
double[]  theZv ) 
Returns for the unit vector its three coordinates theXv, theYv, and theZv.
double GDir.Coord  (  int  theIndex  ) 
Returns the coordinate of range theIndex : theIndex = 1 => X is returned Ithendex = 2 => Y is returned theIndex = 3 => Z is returned Exceptions Standard_OutOfRange if theIndex is not 1, 2, or 3.
void GDir.Cross  (  GDir  theRight  ) 
Computes the cross product between two directions Raises the exception ConstructionError if the two directions are parallel because the computed vector cannot be normalized to create a direction.
Computes the double vector product this ^ (theV1 ^ theV2).  CrossCrossed creates a new unit vector. Exceptions Standard_ConstructionError if:  theV1 and theV2 are parallel, or  this unit vector and (theV1 ^ theV2) are parallel. This is because, in these conditions, the computed vector is null and cannot be normalized.
Computes the triple vector product. <me> ^ (V1 ^ V2) Raises the exception ConstructionError if V1 and V2 are parallel or <me> and (V1^V2) are parallel because the computed vector can't be normalized to create a direction.
double GDir.Dot  (  GDir  theOther  ) 
Computes the scalar product
Computes the triple scalar product <me> * (theV1 ^ theV2). Warnings : The computed vector theV1' = theV1 ^ theV2 is not normalized to create a unitary vector. So this method never raises an exception even if theV1 and theV2 are parallel.
boolean GDir.IsEqual  (  GDir  theOther, 
double  theAngularTolerance ) 
Returns True if the angle between the two directions is lower or equal to theAngularTolerance.
boolean GDir.IsNormal  (  GDir  theOther, 
double  theAngularTolerance ) 
Returns True if the angle between this unit vector and the unit vector theOther is equal to Pi/2 (normal).
boolean GDir.IsOpposite  (  GDir  theOther, 
double  theAngularTolerance ) 
Returns True if the angle between this unit vector and the unit vector theOther is equal to Pi (opposite).
boolean GDir.IsParallel  (  GDir  theOther, 
double  theAngularTolerance ) 
Returns true if the angle between this unit vector and the unit vector theOther is equal to 0 or to Pi. Note: the tolerance criterion is given by theAngularTolerance.
Performs the symmetrical transformation of a direction with respect to an axis placement which is the axis of the symmetry.
Performs the symmetrical transformation of a direction with respect to a plane. The axis placement theA2 locates the plane of the symmetry : (Location, XDirection, YDirection).
Performs the symmetrical transformation of a direction with respect to the direction theV which is the center of the symmetry.
GDir GDir.Reversed  (  ) 
Reverses the orientation of a direction geometric transformations Performs the symmetrical transformation of a direction with respect to the direction V which is the center of the symmetry.]
Rotates a direction. theA1 is the axis of the rotation. theAng is the angular value of the rotation in radians.
void GDir.SetCoord  (  double  theXv, 
double  theYv,  
double  theZv ) 
For this unit vector, assigns the values theXv, theYv and theZv to its three coordinates. Remember that all the coordinates of a unit vector are implicitly modified when any single one is changed directly.
void GDir.SetCoord  (  int  theIndex, 
double  theXi ) 
For this unit vector, assigns the value Xi to:  the X coordinate if theIndex is 1, or  the Y coordinate if theIndex is 2, or  the Z coordinate if theIndex is 3, and then normalizes it. Warning Remember that all the coordinates of a unit vector are implicitly modified when any single one is changed directly. Exceptions Standard_OutOfRange if theIndex is not 1, 2, or 3. Standard_ConstructionError if either of the following is less than or equal to gp::Resolution():  Sqrt(Xv*Xv + Yv*Yv + Zv*Zv), or  the modulus of the number triple formed by the new value theXi and the two other coordinates of this vector that were not directly modified.
void GDir.SetX  (  double  theX  ) 
Assigns the given value to the X coordinate of this unit vector.
void GDir.SetXYZ  (  GXYZ  theCoord  ) 
Assigns the three coordinates of theCoord to this unit vector.
void GDir.SetY  (  double  theY  ) 
Assigns the given value to the Y coordinate of this unit vector.
void GDir.SetZ  (  double  theZ  ) 
Assigns the given value to the Z coordinate of this unit vector.
Transforms a direction with a "Trsf" from gp. Warnings : If the scale factor of the "Trsf" theT is negative then the direction <me> is reversed.
double GDir.X  (  ) 
Returns the X coordinate for a unit vector.
GXYZ GDir.XYZ  (  ) 
for this unit vector, returns its three coordinates as a number triplea.
double GDir.Y  (  ) 
Returns the Y coordinate for a unit vector.
double GDir.Z  (  ) 
Returns the Z coordinate for a unit vector.