ptarray_strip_nan_coords_in_place()

static void ptarray_strip_nan_coords_in_place ( POINTARRAY *  pa )

static

Definition at line 43 of file liblwgeom/lwgeom_geos_clean.c.

{
        uint32_t i, j = 0;
        POINT4D *p, *np;
        int ndims = FLAGS_NDIMS(pa->flags);
        for ( i = 0; i < pa->npoints; i++ )
        {
                int isnan = 0;
                p = (POINT4D *)(getPoint_internal(pa, i));
                if ( isnan(p->x) || isnan(p->y) ) isnan = 1;
                else if (ndims > 2 && isnan(p->z) ) isnan = 1;
                else if (ndims > 3 && isnan(p->m) ) isnan = 1;
                if ( isnan ) continue;
 
                np = (POINT4D *)(getPoint_internal(pa, j++));
                if ( np != p ) {
                        np->x = p->x;
                        np->y = p->y;
                        if (ndims > 2)
                                np->z = p->z;
                        if (ndims > 3)
                                np->m = p->m;
                }
        }
        pa->npoints = j;
}

References POINTARRAY::flags, FLAGS_NDIMS, getPoint_internal(), POINT4D::m, POINTARRAY::npoints, POINT4D::x, POINT4D::y, and POINT4D::z.

Referenced by lwgeom_make_geos_friendly(), lwline_make_geos_friendly(), and ring_make_geos_friendly().

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