NASA Ocean Color

ocssw V2022

 #include "mfhdf.h"
  
 int read_extract_metadata(int32 sd_id,
                           int32 *extract_pixel_offset,
                           int32 *extract_pixel_count,
                           int32 *extract_line_offset,
                           int32 *extract_line_count) {
  
     int32 attr_index;
     *extract_pixel_offset = -1;
     *extract_pixel_count = -1;
     *extract_line_offset = -1;
     *extract_line_count = -1;
  
     attr_index = SDfindattr(sd_id, "Extract Pixel Offset");
     if (attr_index != FAIL)
         SDreadattr(sd_id, attr_index, (VOIDP) extract_pixel_offset);
  
     attr_index = SDfindattr(sd_id, "Extract Pixel Count");
     if (attr_index != FAIL)
         SDreadattr(sd_id, attr_index, (VOIDP) extract_pixel_count);
  
     attr_index = SDfindattr(sd_id, "Extract Line Offset");
     if (attr_index != FAIL)
         SDreadattr(sd_id, attr_index, (VOIDP) extract_line_offset);
  
     attr_index = SDfindattr(sd_id, "Extract Line Count");
     if (attr_index != FAIL)
         SDreadattr(sd_id, attr_index, (VOIDP) extract_line_count);
  
     return SUCCEED;
 }
  
 int write_extract_metadata(int32 sd_id,
                            int32 extract_pixel_offset,
                            int32 extract_pixel_count,
                            int32 extract_line_offset,
                            int32 extract_line_count) {
  
     if (extract_pixel_offset != -1)
         SDsetattr(sd_id, "Extract Pixel Offset",
                   DFNT_INT32, 1,
                   (VOIDP) &extract_pixel_offset);
  
     if (extract_pixel_count != -1)
         SDsetattr(sd_id, "Extract Pixel Count",
                   DFNT_INT32, 1,
                   (VOIDP) &extract_pixel_count);
  
     if (extract_line_offset != -1)
         SDsetattr(sd_id, "Extract Line Offset",
                   DFNT_INT32, 1,
                   (VOIDP) &extract_line_offset);
  
     if (extract_line_count != -1)
         SDsetattr(sd_id, "Extract Line Count",
                   DFNT_INT32, 1,
                   (VOIDP) &extract_line_count);
  
     return SUCCEED;
 }

write_extract_metadata

int write_extract_metadata(int32 sd_id, int32 extract_pixel_offset, int32 extract_pixel_count, int32 extract_line_offset, int32 extract_line_count)

Definition: granule_extract_metadata.c:34

FAIL

#define FAIL

Definition: ObpgReadGrid.h:18

extract_line_count

int32 extract_line_count

Definition: Preprocess.c:66

DFNT_INT32

HDF4 data type of the output SDS Default is DFNT_FLOAT32 Common types used DFNT_INT32

Definition: HOWTO_Add_a_product.txt:67

extract_pixel_offset

int32 extract_pixel_offset

Definition: Preprocess.c:63

extract_line_offset

int32 extract_line_offset

Definition: Preprocess.c:65

extract_pixel_count

int32 extract_pixel_count

Definition: Preprocess.c:64

read_extract_metadata

int read_extract_metadata(int32 sd_id, int32 *extract_pixel_offset, int32 *extract_pixel_count, int32 *extract_line_offset, int32 *extract_line_count)

Definition: granule_extract_metadata.c:3