DbRay.h
This class implements the ray object (Ray entity) in the database. This class inherits the base functionality of entities. A ray is a semi-infinite line.
TD_Db
Example of Working with the Ray Object
Working with Rays
OdDbXline, OdDbLine classes
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Description |
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Builds an instance of the ray object. |
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Name |
Description |
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Returns the WCS coordinates of the base point from which the ray outs (DXF 10) as three-dimensional point instance. | |
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Reads the .dwg file data of this object. | |
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This is DWGMAP_DECLARE_MEMBERS, a member of class OdDbRay. | |
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Writes the .dwg file data of this object. | |
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Reads the DXF data of this object. | |
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Writes the DXF data of this object. | |
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This method is not applicable for the ray entity. | |
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Computes the distance along the ray measured from the base point in drawing units at the specified parameter. | |
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This method is not applicable for the ray entity. | |
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This method is not applicable for the ray entity. | |
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Computes the first derivative for the specified parameter of the ray entity and returns the three-dimensional vector instance. The first derivative is constant for any point of the ray. | |
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Returns an OdGeCurve3d that is geometrically identical to this OdDbCurve. | |
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Computes the parameter at the distance along the ray measured from the base point. | |
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Computes the parameter at the point placed on the ray. | |
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Gets an arbitrary plane passed through the ray entity. This method is inherited from the OdDbEntity class. | |
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Computes the WCS coordinates of the point on the ray at the specified parameter value. | |
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Computes the second derivative for the specified parameter of the ray entity and returns the three-dimensional vector instance. The second derivative has (0,0,0) coordinates for any point of the ray. | |
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Gets the start parameter value. The start parameter equals a zero for rays. | |
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Computes the WCS coordinates of the start point of the ray for which the parameter equals zero. The start point coincides with the base point. | |
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Returns true if and only if this Curve object is closed. | |
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Returns true if and only if this Curve object is periodic. | |
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Determines whether the ray entity is planar as a Boolean value and returns True. This method is inherited from the OdDbEntity class. | |
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Sets the base point of the from which the ray outs (DXF 10). The initial value is (0,0,0) by default. | |
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Takes an OdGeCurve3d and sets this OdDbCurve to be geometrically identical to the OdGeCurve3d. | |
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Sets the direction vector of the ray (DXF 11) in WCS. The initial value is (0,0,1) by default. | |
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overridables | |
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This is subTransformBy, a member of class OdDbRay. | |
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This is subWorldDraw, a member of class OdDbRay. | |
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This is the overview for the TD_USING method overload. | |
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Returns the WCS unit direction vector of the ray (DXF 11) as three-dimensional vector instance. This vector orients the ray in would space. |
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