Issue099 bsplines deg2 tri

bsplines2d/__init__.py

@@ -23,3 +23,4 @@
 from ._class03_Bins import Bins as BSplines2D
 from ._saveload import load
 from . import tests
+from . import tutorials

bsplines2d/_class02_BSplines2D.py

@@ -295,6 +295,7 @@ def extract(
             inplace=inplace,
             return_keys=True,
         )
+
         return _compute.extract(
             coll=self,
             keys=keys,
@@ -1314,4 +1315,4 @@ def save(
 
         _saveload.restore_bsplines(self, dclas=dclas)
 
-        return out
+        return out

bsplines2d/_class02_compute.py

@@ -360,8 +360,17 @@ def extract(
     # trivial
     # ---------------
 
+    return_keys = ds._generic_check._check_var(
+        return_keys, 'return_keys',
+        types=bool,
+        default=False,
+    )
+
     if len(lmesh) == 0:
-        return coll2, keys
+        if return_keys is True:
+            return coll2, keys
+        else:
+            return coll2
 
     # ---------------
     # add mesh
@@ -974,4 +983,4 @@ def _get_possible_ref12d(
         return val, dparams
     else:
         return val
-"""
+"""

bsplines2d/tutorials/__init__.py

@@ -0,0 +1,5 @@
+
+
+from ._tuto01_bsplines_types import main as tuto01_bsplines_types
+
+