bugfix in geocode.py --bbox option for gamma products

+ objects/resample.py: fix a bug for `geocode.py --bbox` option while geocoding gamma products with customized SNWE from --bbox option, the output dest_box does not start from 0, thus, should use box[3/4] directly, instead of box[3]-box[1] and box[2]-box[0]

+ cli/subset: check input file exsitence

+ view.py --coord: update help msg to avoid potential confusions by updating utils.arg_utils.add_figure_argument()

+ view.py --coord: set the other choices as yx, instead of radar, and keep radar still in the loop for backward compatiability

src/mintpy/cli/subset.py

@@ -95,8 +95,13 @@ def cmd_line_parse(iargs=None):
     # import
     from mintpy.utils import utils1 as ut
 
+    # check: existence of input file
+    flist = ut.get_file_list(inps.file)
+    if len(flist) == 0:
+        raise FileNotFoundError(f'NO file found in: {inps.file}!')
+    inps.file = flist
+
     # default: disable --output option for multiple input files
-    inps.file = ut.get_file_list(inps.file)
     if len(inps.file) > 1 and inps.outfile:
         inps.outfile = None
         print('WARNING: disable --output option for multiple input files.')

src/mintpy/objects/resample.py

@@ -619,8 +619,7 @@ def project_yx2lalo(yy, xx, SNWE, laloScale):
             print(f'output area extent in (S, N, W, E) in degree: {self.SNWE}')
 
             # parameter 3 - length / width (output grid)
-            self.length = dest_box[3] - dest_box[1]
-            self.width = dest_box[2] - dest_box[0]
+            self.length, self.width = dest_box[3], dest_box[2]
 
             # parameter 4 - list of boxes & geometry definitions
 

src/mintpy/utils/arg_utils.py

@@ -208,8 +208,8 @@ def add_figure_argument(parser):
     fig.add_argument('--no-tight-layout', dest='fig_tight_layout', action='store_false',
                      help='disable automatic tight layout for multiple subplots')
 
-    fig.add_argument('--coord', dest='fig_coord', choices=['radar', 'geo'], default='geo',
-                     help='Display in radar/geo coordination system '
+    fig.add_argument('--coord', dest='fig_coord', choices=['geo','radar','yx'], default='geo',
+                     help='Display axes in geo or yx coordinates '
                           '(for geocoded file only; default: %(default)s).')
     fig.add_argument('--animation', action='store_true',
                      help='enable animation mode')

src/mintpy/utils/plot_ext.py

@@ -96,7 +96,7 @@ def get_poly_mask(fname, datasetName, print_msg=True, view_cmd=''):
 
     d_v, atr ,inps = view.prep_slice(cmd)
     ax = plt.subplots(figsize=inps.fig_size)[1]
-    inps.fig_coord = 'radar'   #selector works for radar coord plot only
+    inps.fig_coord = 'yx'   # selector works for y/x coord plot only
     ax, inps, im = view.plot_slice(ax, d_v, atr, inps)[0:3]
 
     ## Option 2 - Simple plot with matplotlib

src/mintpy/view.py

@@ -185,7 +185,7 @@ def check_map_projection(inps, metadata, print_msg=True):
     This function will update the following variables:
         inps.map_proj_obj  # cartopy.crs.* object or None
         inps.coord_unit    # degree or meter
-        inps.fig_coord     # geo or radar
+        inps.fig_coord     # geo or yx
     """
 
     inps.map_proj_obj = None
@@ -215,7 +215,7 @@ def check_map_projection(inps, metadata, print_msg=True):
             else:
                 print(f'WARNING: Un-recognized coordinate unit: {inps.coord_unit}')
                 print('    Switch to the native Y/X and continue to plot')
-                inps.fig_coord = 'radar'
+                inps.fig_coord = 'yx'
 
     return inps
 
@@ -605,7 +605,7 @@ def format_coord(x, y):
 
     #------------------------ Plot in Y/X-coordinate ------------------------------------------------#
     else:
-        inps.fig_coord = 'radar'
+        inps.fig_coord = 'yx'
         vprint('plotting in Y/X coordinate ...')
 
         # Plot DEM