CompareBoundaryRelation

Loop relation for CompareBoundary().

class CompareBoundaryRelation : LoopRelation {

this(bool reverse_b);

bool foundSharedVertex();

bool containsEdge();

int aCrossingTarget();

int bCrossingTarget();

bool wedgesCross(S2Point a0, S2Point ab1, S2Point a2, S2Point b0, S2Point b2);

protected const

bool _reverseB;

bool _foundSharedVertex;

bool _containsEdge;

bool _excludesEdge;

}

Constructors

this this(bool reverse_b): Undocumented in source.

Members

Functions

aCrossingTarget int aCrossingTarget(): Undocumented in source. Be warned that the author may not have intended to support it.
bCrossingTarget int bCrossingTarget(): Undocumented in source. Be warned that the author may not have intended to support it.
containsEdge bool containsEdge(): Undocumented in source. Be warned that the author may not have intended to support it.
foundSharedVertex bool foundSharedVertex(): Undocumented in source. Be warned that the author may not have intended to support it.
wedgesCross bool wedgesCross(S2Point a0, S2Point ab1, S2Point a2, S2Point b0, S2Point b2): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

_containsEdge bool _containsEdge;: Undocumented in source.
_excludesEdge bool _excludesEdge;: Undocumented in source.
_foundSharedVertex bool _foundSharedVertex;: Undocumented in source.
_reverseB bool _reverseB;: Undocumented in source.

Inherited Members

From LoopRelation

aCrossingTarget int aCrossingTarget(): Optionally, a_target() and b_target() can specify an early-exit condition for the loop relation. If any point P is found such that
bCrossingTarget int bCrossingTarget(): Undocumented in source.
wedgesCross bool wedgesCross(S2Point a0, S2Point ab1, S2Point a2, S2Point b0, S2Point b2): Given a vertex "ab1" that is shared between the two loops, return true if the two associated wedges (a0, ab1, b2) and (b0, ab1, b2) are equivalent to an edge crossing. The loop relation is also allowed to maintain its own internal state, and can return true if it observes any sequence of wedges that are equivalent to an edge crossing.

Meta

Source

See Implementation

s2 s2loop classes

variables

LAZY_INDEXING