From 62099b81c47126c2d159ae210c08aee7ed76bada Mon Sep 17 00:00:00 2001
From: Alexey Pechnikov <pechnikov@mobigroup.ru>
Date: Sat, 3 Aug 2024 00:14:41 +0700
Subject: [PATCH] Temporally set unwrap matrix equal to least-squares matrix.

---
 pygmtsar/pygmtsar/Stack_unwrap.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pygmtsar/pygmtsar/Stack_unwrap.py b/pygmtsar/pygmtsar/Stack_unwrap.py
index cbdbd216..77f1cd64 100644
--- a/pygmtsar/pygmtsar/Stack_unwrap.py
+++ b/pygmtsar/pygmtsar/Stack_unwrap.py
@@ -399,7 +399,9 @@ def unwrap_matrix(self, pairs):
             -1 indicating the end date, 0 if the date is covered by the corresponding
             interferogram timeline, and NaN otherwise.
         """
-        return self.get_pairs_matrix(pairs)
+        #return self.get_pairs_matrix(pairs)
+        # revert temporally for backward compatibility
+        return (self.get_pairs_matrix(pairs)>=0).astype(int)
 
     def unwrap1d(self, data, weight=None, tolerance=np.pi/2):
         import xarray as xr