lwiterator.c File Reference
Include dependency graph for lwiterator.c:
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Data Structures | |
| struct | LISTNODE |
| struct | LWPOINTITERATOR |
Typedefs | |
| typedef struct LISTNODE | LISTNODE |
Functions | |
| static LISTNODE * | prepend_node (const void *g, LISTNODE *front) |
| static LISTNODE * | pop_node (LISTNODE *i) |
| static int | add_lwgeom_to_stack (LWPOINTITERATOR *s, const LWGEOM *g) |
| static LISTNODE * | extract_pointarrays_from_lwgeom (const LWGEOM *g) |
| Return a pointer to the first of one or more LISTNODEs holding the POINTARRAYs of a geometry. More... | |
| static void | unroll_collection (LWPOINTITERATOR *s) |
| Remove an LWCOLLECTION from the iterator stack, and add the components of the LWCOLLECTIONs to the stack. More... | |
| static void | unroll_collections (LWPOINTITERATOR *s) |
| Unroll LWCOLLECTIONs from the top of the stack, as necessary, until the element at the top of the stack is not a LWCOLLECTION. More... | |
| static int | lwpointiterator_advance (LWPOINTITERATOR *s) |
| int | lwpointiterator_peek (LWPOINTITERATOR *s, POINT4D *p) |
| Attempts to assigns the next point in the iterator to p. More... | |
| int | lwpointiterator_has_next (LWPOINTITERATOR *s) |
| Returns LW_TRUE if there is another point available in the iterator. More... | |
| int | lwpointiterator_next (LWPOINTITERATOR *s, POINT4D *p) |
| Attempts to assign the next point in the iterator to p, and advances the iterator to the next point. More... | |
| int | lwpointiterator_modify_next (LWPOINTITERATOR *s, const POINT4D *p) |
| Attempts to replace the next point int the iterator with p, and advances the iterator to the next point. More... | |
| LWPOINTITERATOR * | lwpointiterator_create (const LWGEOM *g) |
| Create a new LWPOINTITERATOR over supplied LWGEOM*. More... | |
| LWPOINTITERATOR * | lwpointiterator_create_rw (LWGEOM *g) |
| Create a new LWPOINTITERATOR over supplied LWGEOM* Supports modification of coordinates during iteration. More... | |
| void | lwpointiterator_destroy (LWPOINTITERATOR *s) |
| Free all memory associated with the iterator. More... | |
