PostGIS  2.2.7dev-r@@SVN_REVISION@@
rt_errorstate rt_band_set_isnodata_flag ( rt_band  band,
int  flag 
)

Set isnodata flag value.

Parameters
band: the band on which to set the isnodata flag
flag: the new isnodata flag value. Must be 1 or 0
Returns
ES_NONE or ES_ERROR

Definition at line 562 of file rt_band.c.

References ES_ERROR, ES_NONE, rt_band_t::hasnodata, rt_band_t::isnodata, and rterror().

Referenced by RASTER_setBandIsNoData(), RASTER_tile(), rt_band_set_pixel_line(), and rt_raster_generate_new_band().

562  {
563  assert(NULL != band);
564 
565  if (!band->hasnodata) {
566  /* silently permit setting isnodata flag to FALSE */
567  if (!flag)
568  band->isnodata = 0;
569  else {
570  rterror("rt_band_set_isnodata_flag: Cannot set isnodata flag as band has no NODATA");
571  return ES_ERROR;
572  }
573  }
574  else
575  band->isnodata = (flag) ? 1 : 0;
576 
577  return ES_NONE;
578 }
void rterror(const char *fmt,...)
Wrappers used for reporting errors and info.
Definition: rt_context.c:199
int32_t isnodata
Definition: librtcore.h:2282
int32_t hasnodata
Definition: librtcore.h:2281

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