readfile: grab ORBIT_DIRECTION for gmtsar (#1227)

+ utils.readfile._attribute_gmtsar2roipac(): grab ORBIT_DIRECTION for gmtsar
insarlab · Jul 17, 2024 · a8471b3 · a8471b3
1 parent 6495001
commit a8471b3
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diff --git a/docs/dir_structure.md b/docs/dir_structure.md
@@ -484,7 +484,6 @@ ALOOKS          = 8          #[int], number of looks in the azimuth direction
 RLOOKS          = 32         #[int], number of looks in the range direction
 HEADING         = -168.0     #[float], satellite heading angle, measured from the north in clockwise as positive
                              # One could open the *.kml file in Google Earth and measure it manually
-ORBIT_DIRECTION = DESCENDING #[ASCENDING, DESCENDING]
 
 mintpy.load.processor    = gmtsar
 mintpy.load.metaFile     = $DATA_DIR/SanFranBaySenD42/supermaster.PRM

diff --git a/src/mintpy/utils/readfile.py b/src/mintpy/utils/readfile.py
@@ -1810,6 +1810,14 @@ def _attribute_gmtsar2roipac(prm_dict_in):
         else:
             prm_dict['ANTENNA_SIDE'] = '1'
 
+    # orbdir -> ORBIT_DIRECTION
+    key = 'obsdir'
+    if key in prm_dict_in.keys():
+        prm_dict['ORBIT_DIRECTION'] = {
+            'A' : 'ASCENDING',
+            'D' : 'DESCENDING',
+        }[prm_dict[key]]
+
     # SC_vel -> AZIMUTH_PIXEL_SIZE (in single look)
     key = 'SC_vel'
     if key in prm_dict_in.keys():