Describes a line in 2D space. A line is positioned in the plane with an axis (a gp_Ax2d object) which gives the line its origin and unit vector. A line and an axis are similar objects, thus, we can convert one into the other. A line provides direct access to the majority of the edit and query functions available on its positioning axis. In addition, however, a line has specific functions for computing distances and positions. See Also GccAna and Geom2dGcc packages which provide functions for constructing lines defined by geometric constraints gce_MakeLin2d which provides functions for more complex line constructions Geom2d_Line which provides additional functions for constructing lines and works, in particular, with the parametric equations of lines 更多...
Public 成员函数 | |
| GLin2d (global::System.IntPtr cPtr, bool cMemoryOwn) | |
| 仅供内部使用 | |
| void | Dispose () |
| GLin2d () | |
| Creates a Line corresponding to X axis of the reference coordinate system. | |
| GLin2d (GAx2d theA) | |
| Creates a line located with theA. | |
| GLin2d (GPnt2d theP, GDir2d theV) | |
| <theP> is the location point (origin) of the line and <theV> is the direction of the line. | |
| GLin2d (double theA, double theB, double theC) | |
| Creates the line from the equation theA*X + theB*Y + theC = 0.0 Raises ConstructionError if Sqrt(theA*theA + theB*theB) <= Resolution from gp. Raised if Sqrt(theA*theA + theB*theB) <= Resolution from gp. | |
| void | Reverse () |
| GLin2d | Reversed () |
| Reverses the positioning axis of this line. Note: - Reverse assigns the result to this line, while - Reversed creates a new one. | |
| void | SetDirection (GDir2d theV) |
| Changes the direction of the line. | |
| void | SetLocation (GPnt2d theP) |
| Changes the origin of the line. | |
| void | SetPosition (GAx2d theA) |
| Complete redefinition of the line. The "Location" point of <theA> is the origin of the line. The "Direction" of <theA> is the direction of the line. | |
| void | Coefficients (ref double theA, ref double theB, ref double theC) |
| Returns the normalized coefficients of the line : theA * X + theB * Y + theC = 0. | |
| GDir2d | Direction () |
| Returns the direction of the line. | |
| GPnt2d | Location () |
| Returns the location point (origin) of the line. | |
| GAx2d | Position () |
| Returns the axis placement one axis with the same location and direction as <me>. | |
| double | Angle (GLin2d theOther) |
| Computes the angle between two lines in radians. | |
| bool | Contains (GPnt2d theP, double theLinearTolerance) |
| Returns true if this line contains the point theP, that is, if the distance between point theP and this line is less than or equal to theLinearTolerance. | |
| double | Distance (GPnt2d theP) |
| Computes the distance between <me> and the point <theP>. | |
| double | Distance (GLin2d theOther) |
| Computes the distance between two lines. | |
| double | SquareDistance (GPnt2d theP) |
| Computes the square distance between <me> and the point <theP>. | |
| double | SquareDistance (GLin2d theOther) |
| Computes the square distance between two lines. | |
| GLin2d | Normal (GPnt2d theP) |
| Computes the line normal to the direction of <me>, passing through the point <theP>. | |
| void | Mirror (GPnt2d theP) |
| GLin2d | Mirrored (GPnt2d theP) |
| Performs the symmetrical transformation of a line with respect to the point <theP> which is the center of the symmetry | |
| void | Mirror (GAx2d theA) |
| GLin2d | Mirrored (GAx2d theA) |
| Performs the symmetrical transformation of a line with respect to an axis placement which is the axis of the symmetry. | |
| void | Rotate (GPnt2d theP, double theAng) |
| GLin2d | Rotated (GPnt2d theP, double theAng) |
| Rotates a line. theP is the center of the rotation. theAng is the angular value of the rotation in radians. | |
| void | Scale (GPnt2d theP, double theS) |
| GLin2d | Scaled (GPnt2d theP, double theS) |
| Scales a line. theS is the scaling value. Only the origin of the line is modified. | |
| void | Transform (GTrsf2d theT) |
| GLin2d | Transformed (GTrsf2d theT) |
| Transforms a line with the transformation theT from class Trsf2d. | |
| void | Translate (GVec2d theV) |
| GLin2d | Translated (GVec2d theV) |
| Translates a line in the direction of the vector theV. The magnitude of the translation is the vector's magnitude. | |
| void | Translate (GPnt2d theP1, GPnt2d theP2) |
| GLin2d | Translated (GPnt2d theP1, GPnt2d theP2) |
| Translates a line from the point theP1 to the point theP2. | |
详细描述
Describes a line in 2D space. A line is positioned in the plane with an axis (a gp_Ax2d object) which gives the line its origin and unit vector. A line and an axis are similar objects, thus, we can convert one into the other. A line provides direct access to the majority of the edit and query functions available on its positioning axis. In addition, however, a line has specific functions for computing distances and positions. See Also GccAna and Geom2dGcc packages which provide functions for constructing lines defined by geometric constraints gce_MakeLin2d which provides functions for more complex line constructions Geom2d_Line which provides additional functions for constructing lines and works, in particular, with the parametric equations of lines
