v1.5.1). The flag alters the validity checking behavior. The flags parameter is a bitfield with the following options:
- 0 (default): Use usual OGC SFS (Simple Features Specification) validity semantics.
- 1: “ESRI flag”, Accepts certain self-touching rings as valid, which are considered invalid under OGC standards.
Signatures
Parameters
The input geometry.
The validation flag.
Return type
Returns
true or false.