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| Ellipse (global::System.IntPtr cPtr, bool cMemoryOwn) |
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| | Ellipse (cadex.Geom.Axis3d thePosition, double theMajorRadius, double theMinorRadius) |
| | Constructor.
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| double | MajorRadius () |
| | Returns a major radius.
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| double | MinorRadius () |
| | Returns a minor radius.
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| Conic (global::System.IntPtr cPtr, bool cMemoryOwn) |
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| cadex.Geom.Axis3d | Position () |
| | Returns the value specified in the constructor of respective subclass.
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| double | Parameter (cadex.Geom.Point thePoint) |
| | Returns parameter for a 3D point.
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| Curve (global::System.IntPtr cPtr, bool cMemoryOwn) |
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cadex.Geom.CurveType | Type () |
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| cadex.Geom.Continuity | Continuity () |
| | Returns a continuity type of the curve.
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| cadex.Geom.Point | Value (double theParameter) |
| | Evaluates a point on the curve.
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| cadex.Geom.Direction | Normal (double theParameter) |
| | Returns the normal direction theNormal of parameter theParam.
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| double | Curvature (double theParameter) |
| | Returns the curvature value of parameter theParam.
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| bool | IsPeriodic () |
| | Returns true if the curve is periodic.
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| double | UMin () |
| | Returns a minimum parameter of a definition domain.
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| double | UMax () |
| | Returns a maximum parameter of a definition domain.
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| void | Domain (out double theUMin, out double theUMax) |
| | Returns a definition domain.
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| bool | IsTrimmed () |
| | Returns whether curve is trimmed or not.
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| void | SetTrim (double theFirst, double theLast) |
| | Trims curve with [theFirst, theLast] section.
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| void | Transform (cadex.Geom.Transformation theTransformation) |
| | Results depends on the actual curve type.
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| cadex.Geom.Curve | Transformed (cadex.Geom.Transformation theTransformation) |
| | The contents of this object is not modified.
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| void | D0 (double theParameter, cadex.Geom.Point theValue) |
| | Throws exception only for the OffsetCurve if it is not possible to compute the current point.
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| void | D1 (double theParameter, cadex.Geom.Point theValue, cadex.Geom.Vector theD1) |
| | Returns the point theValue of parameter theParam and the first derivative theD1.
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| void | D2 (double theParameter, cadex.Geom.Point theValue, cadex.Geom.Vector theD1, cadex.Geom.Vector theD2) |
| | Returns the point theValue of parameter theParam, the first theD1 and second theD2 derivatives.
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| bool | DN (double theParameter, uint theDerivativeOrder, cadex.Geom.Point theValue, cadex.Collections.VectorList theD) |
| | Returns true if calculation completed successfully.
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void | Mirror (cadex.Geom.Point thePoint) |
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void | Mirror (cadex.Geom.Axis1d theAxis) |
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void | Mirror (cadex.Geom.Axis3d theAxis) |
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cadex.Geom.Curve | Mirrored (cadex.Geom.Point theRef) |
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cadex.Geom.Curve | Mirrored (cadex.Geom.Axis1d theAxis) |
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cadex.Geom.Curve | Mirrored (cadex.Geom.Axis3d theAxis) |
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void | Rotate (cadex.Geom.Axis1d theAxis, double theAngle) |
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cadex.Geom.Curve | Rotated (cadex.Geom.Axis1d theAxis, double theAngle) |
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void | Translate (cadex.Geom.Vector theVector) |
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cadex.Geom.Curve | Translated (cadex.Geom.Vector theVector) |
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void | Scale (cadex.Geom.Point thePoint, double theScale) |
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cadex.Geom.Curve | Scaled (cadex.Geom.Point thePoint, double theScale) |
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| Geometry (global::System.IntPtr cPtr, bool cMemoryOwn) |
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| BaseObject (global::System.IntPtr cPtr, bool cMemoryOwn) |
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void | Dispose () |
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bool | IsNull () |
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| ulong | Id () |
| | Return unique identifier of public object.
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bool | IsEqual (cadex.BaseObject theObj) |
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override int | GetHashCode () |
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override bool | Equals (System.Object o) |
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Defines 3D ellipse.
An ellipse is defined by axis placement, major and minor radii. The following image depicts an ellipse example:
Ellipse
An ellipse is a periodic curve parametrized as follows: \(\mathbf{C}(t) = \mathbf{P} + R_{major}\cos(t)\mathbf{X} + R_{minor}\sin(t)\mathbf{Y}\), where
- \(\mathbf{P}\) is an origin point,
- \(\mathbf{X}\) and \(\mathbf{Y}\) are directions,
- \(R_{major}\) and \(R_{minor}\) are major and minor radii,
- \(t\) belongs to \([0, 2\pi]\).
Note that major radius is always along the X-axis and minor radius - along the Y-axis, and that the \(\mathbf{C}(0)\) point lies on the major radius.
- See also
- Ellipse2d.
- Examples
- exploring/brep_geometry/Program.cs, and exploring/brep_geometry/main.cxx.