PostGIS  3.4.0dev-r@@SVN_REVISION@@

◆ lwpoint_make3dm()

LWPOINT* lwpoint_make3dm ( int32_t  srid,
double  x,
double  y,
double  m 
)

Definition at line 184 of file lwpoint.c.

185 {
186  POINT4D p = {x, y, 0.0, m};
187  POINTARRAY *pa = ptarray_construct_empty(0, 1, 1);
188 
189  ptarray_append_point(pa, &p, LW_TRUE);
190 
191  return lwpoint_construct(srid, NULL, pa);
192 }
ptarray_construct_empty
POINTARRAY * ptarray_construct_empty(char hasz, char hasm, uint32_t maxpoints)
Create a new POINTARRAY with no points.
Definition: ptarray.c:59
ptarray_append_point
int ptarray_append_point(POINTARRAY *pa, const POINT4D *pt, int allow_duplicates)
Append a point to the end of an existing POINTARRAY If allow_duplicate is LW_FALSE,...
Definition: ptarray.c:147
LW_TRUE
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:93
lwpoint_construct
LWPOINT * lwpoint_construct(int32_t srid, GBOX *bbox, POINTARRAY *point)
Definition: lwpoint.c:129

References LW_TRUE, lwpoint_construct(), ptarray_append_point(), ptarray_construct_empty(), pixval::x, and pixval::y.

Referenced by LWGEOM_makepoint3dm(), and ST_PointM().

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