fix DM resampling criterion

kvangorkom · kvangorkom · commit bd636867d0cd · 2025-09-10T10:51:25.000-07:00
diff --git a/poppy_utils/dm.py b/poppy_utils/dm.py
@@ -166,7 +166,7 @@ def get_opd(self, wave):
         if self.include_reflection:
             opd *= 2
 
-        pxscl_diff = wave.pixelscale.to_value(u.m/u.pix) - self.pixelscale.to_value(u.m/u.pix) 
+        pxscl_diff = xp.abs(wave.pixelscale.to_value(u.m/u.pix) - self.pixelscale.to_value(u.m/u.pix))
         if pxscl_diff > self.pxscl_tol:
             opd = interp_arr(opd, self.pixelscale.to_value(u.m/u.pix), wave.pixelscale.to_value(u.m/u.pix) )
         
