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Purpose:
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Implements the list of return codes for status checking.
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Derivation:
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check_status_list : ACIS_OBJECT : -
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Filename:
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kern/kernel/kernint/d3_chk/chk_stat.hxx
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Description:
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Both curve and surface checkers return similar lists of return codes when a curve or surface is illegal, or
NULL if it is OK. Note that in both cases the subdivision and self-intersection tests are only performed if everything else worked.
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Return codes are as follows:
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check_irregular
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very scrunched up/twisted. (Subdivision fails.)
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check_self_intersects
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curve/surface self intersects.
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check_bad_closure
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either the curve/surface says it is closed when it isn't, or that it is not closed when it is.
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check_bs3_null
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no bs3 curve or surface. It does not check vertex blends. No further tests are made in this case.
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check_bs3_coi_verts
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either adjacent control vertices are coincident or, for degenerate surfaces, vertices which should be coincident are not.
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check_bad_degeneracies
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the degenerate edges on a surface make it untreatable (for example, two adjacent edges degenerate). This code is never returned for curves.
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check_untreatable_singularities
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a singularity on the surface is beyond the scope of singularity current processing. This code is never returned for curves.
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check_non_G0
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position continuous.
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check_non_G1
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curve/surface not G1. For surfaces this may mean that parameter lines are not tangent continuous. But it is G0.
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check_non_G2
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not G2, though it is G0 and G1 with smooth parameter lines, if a surface.
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check_non_C1
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not C1, though it is G1. It may or may not have been G2.
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check_unknown
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status is unknown. This does not get returned.
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check_inconsistent
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Data mismatch in the given edge.
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Destructor:
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public: check_status_list::~check_status_list
();
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Destructor, destroying the list from here on.
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Methods:
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public: check_status_list*
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check_status_list::add_error (
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check_status status
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// error to add to list
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);
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Adds an error to the front of the list. Returns a new
check_status_list with the new error incorporated.
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public: check_status_list*
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check_status_list::add_list (
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check_status_list* list
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// error list
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);
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Adds a list of errors to the front of the list. Returns the new start.
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public: logical check_status_list::contains
(
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check_status wanted
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// status to check for
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) const;
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Checks for a particular status.
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public: check_status_list*
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check_status_list::next ();
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Returns the next element of the error
check_status_list, or
NULL if there is none.
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public: check_status check_status_list::status
();
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Returns the status code of this element of the list.
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