int pj_apply_gridshift( projCtx ctx, const char *nadgrids, int inverse,
long point_count, int point_offset,
double *x, double *y, double *z )
{
PJ_GRIDINFO **gridlist;
int grid_count;
int ret;
gridlist = pj_gridlist_from_nadgrids( ctx, nadgrids, &grid_count );
if( gridlist == NULL || grid_count == 0 )
return ctx->last_errno;
ret = pj_apply_gridshift_3( ctx, gridlist, grid_count, inverse,
point_count, point_offset, x, y, z );
/*
** Note this frees the array of grid list pointers, but not the grids
** which is as intended. The grids themselves live on.
*/
pj_dalloc( gridlist );
return ret;
}
int pj_apply_gridshift_2( PJ *defn, int inverse,
long point_count, int point_offset,
double *x, double *y, double *z )
{
if( defn->gridlist == NULL )
{
defn->gridlist =
pj_gridlist_from_nadgrids( pj_get_ctx( defn ),
pj_param(defn->ctx, defn->params,"snadgrids").s,
&(defn->gridlist_count) );
if( defn->gridlist == NULL || defn->gridlist_count == 0 )
return defn->ctx->last_errno;
}
return pj_apply_gridshift_3( pj_get_ctx( defn ),
defn->gridlist, defn->gridlist_count, inverse,
point_count, point_offset, x, y, z );
}
