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Purpose:
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Represents the intersection of a curve with a surface and returns the intersections as a list.
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Derivation:
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curve_surf_int : ACIS_OBJECT : -
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Filename:
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kern/kernel/kernint/intcusf/cusfint.hxx
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Description:
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This class represents the intersection of a curve with a surface. This class returns all intersections inside the bounding box in a list. This list can be walked using the "next" data member of the class.
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If an end point lies on the surface, the intersection is first coerced to that point and then checked against the bounding box. In this way, a vertex is treated the same for every edge running through it.
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References:
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BASE
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SPApar_pos, SPAparameter, SPAposition
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Data:
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public const void *data1;
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General purpose pointer used to store the element on a
meshsurf from which this intersection originated.
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public const void *data2;
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General purpose pointer used to store the element on a
compcurv from which this intersection originated.
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public curve_surf_int *next;
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The pointer to the list.
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public curve_surf_rel high_rel;
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The relationship between the curve and the surface in the neighborhood of the intersection, in the positive parameter direction.
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public curve_surf_rel low_rel;
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The relationship between the curve and the surface in the neighborhood of the intersection, in the negative parameter direction.
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public curve_surf_userdata *userdata;
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Pointer to an arbitrary object to store user data. If non-NULL, it is deleted when this object is deleted. It is the responsibility of the user's class derived from this to ensure that the destructor does what is necessary.
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public logical fuzzy;
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This is
TRUE if the intersection is not tightly defined (a tangency or small-angle crossing).
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public SPApar_pos surf_param;
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The parameters of the intersection point on the surface.
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public SPAparameter high_param;
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The high end of the parameter range if it is fuzzy; the same as
param if it is not fuzzy.
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public SPAparameter low_param;
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The low end of the parameter range if it is fuzzy; the same as
param if it is not fuzzy.
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public SPAposition int_point;
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The point of intersection.
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public SPAparameter param;
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The parameters of the intersection point on the curve.
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public double tolerance;
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Supports tolerant modeling. The value is used to record the tolerance value of the intersection. It is defaulted to
SPAresabs.
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Constructor:
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public: curve_surf_int::curve_surf_int
(
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curve_surf_int*,
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// next intersection
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SPAposition const&,
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// intersection point
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double,
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// param at intersection
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curve_surf_rel
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// relationship before
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= curve_unknown,
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// param
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curve_surf_rel
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// relationship after
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= curve_unknown
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// param
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);
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C++ initialize constructor requests memory for this object and populates it with the data supplied as arguments.
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public: curve_surf_int::curve_surf_int
(
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curve_surf_int const&
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// curve-surf
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// intersection
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);
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C++ copy constructor requests memory for this object and populates it with the data from the object supplied as an argument.
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Destructor:
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public: curve_surf_int::~curve_surf_int
();
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C++ destructor, deleting a
curve_surf_int.
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Methods:
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public: void curve_surf_int::debug
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FILE*
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// file name
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= debug_file_ptr
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) const;
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Writes debug information about
curve_surf_int to the printer or to the specified file.
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Related Fncs:
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delete_curve_surf_ints
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