PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ linestring_from_pa()

static LWGEOM* linestring_from_pa ( const POINTARRAY *  pa,
int  srid,
int  start,
int  end 
)
static

Definition at line 843 of file lwstroke.c.

844 {
845  int i = 0, j = 0;
846  POINT4D p;
847  POINTARRAY *pao = ptarray_construct(ptarray_has_z(pa), ptarray_has_m(pa), end-start+2);
848  LWDEBUGF(4, "srid=%d, start=%d, end=%d", srid, start, end);
849  for( i = start; i < end + 2; i++ )
850  {
851  getPoint4d_p(pa, i, &p);
852  ptarray_set_point4d(pao, j++, &p);
853  }
854  return lwline_as_lwgeom(lwline_construct(srid, NULL, pao));
855 }
lwline_as_lwgeom
LWGEOM * lwline_as_lwgeom(const LWLINE *obj)
Definition: lwgeom.c:330
ptarray_construct
POINTARRAY * ptarray_construct(char hasz, char hasm, uint32_t npoints)
Construct an empty pointarray, allocating storage and setting the npoints, but not filling in any inf...
Definition: ptarray.c:62
getPoint4d_p
int getPoint4d_p(const POINTARRAY *pa, uint32_t n, POINT4D *point)
Definition: lwgeom_api.c:123
lwline_construct
LWLINE * lwline_construct(int srid, GBOX *bbox, POINTARRAY *points)
Definition: lwline.c:42
ptarray_set_point4d
void ptarray_set_point4d(POINTARRAY *pa, uint32_t n, const POINT4D *p4d)
Definition: lwgeom_api.c:435
ptarray_has_z
int ptarray_has_z(const POINTARRAY *pa)
Definition: ptarray.c:36
ptarray_has_m
int ptarray_has_m(const POINTARRAY *pa)
Definition: ptarray.c:43
LWDEBUGF
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:88

References getPoint4d_p(), LWDEBUGF, lwline_as_lwgeom(), lwline_construct(), ptarray_construct(), ptarray_has_m(), ptarray_has_z(), and ptarray_set_point4d().

Referenced by geom_from_pa().

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