Chart: Add coord_restrictions init arg

sagemath · Jul 3, 2021 · d9520ae · d9520ae
1 parent 473cd41
commit d9520ae
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Showing 2 changed files with 13 additions and 5 deletions.
diff --git a/src/sage/manifolds/chart.py b/src/sage/manifolds/chart.py
@@ -261,7 +261,15 @@ class Chart(UniqueRepresentation, SageObject):
         manifolds over `\RR`.
 
     """
-    def __init__(self, domain, coordinates='', names=None, calc_method=None):
+    @staticmethod
+    def __classcall__(cls, domain, coordinates='', names=None, calc_method=None,
+                      coord_restrictions=None):
+
+        return super().__classcall__(cls, domain, coordinates, names, calc_method,
+                                     coord_restrictions)
+
+
+    def __init__(self, domain, coordinates, names, calc_method, coord_restrictions):
         r"""
         Construct a chart.
 
@@ -1576,7 +1584,7 @@ class RealChart(Chart):
     :meth:`plot`.
 
     """
-    def __init__(self, domain, coordinates='', names=None, calc_method=None):
+    def __init__(self, domain, coordinates, names, calc_method, coord_restrictions):
         r"""
         Construct a chart on a real topological manifold.
 
@@ -1595,7 +1603,7 @@ def __init__(self, domain, coordinates='', names=None, calc_method=None):
 
         """
         Chart.__init__(self, domain, coordinates=coordinates, names=names,
-                       calc_method=calc_method)
+                       calc_method=calc_method, coord_restrictions=coord_restrictions)
         self._fast_valid_coordinates = None
 
     def _init_coordinates(self, coord_list):

diff --git a/src/sage/manifolds/differentiable/chart.py b/src/sage/manifolds/differentiable/chart.py
@@ -259,7 +259,7 @@ class DiffChart(Chart):
         on differentiable manifolds over `\RR`.
 
     """
-    def __init__(self, domain, coordinates='', names=None, calc_method=None):
+    def __init__(self, domain, coordinates, names, calc_method, coord_restrictions):
         r"""
         Construct a chart.
 
@@ -942,7 +942,7 @@ class RealDiffChart(DiffChart, RealChart):
     :meth:`~sage.manifolds.chart.RealChart.plot`.
 
     """
-    def __init__(self, domain, coordinates='', names=None, calc_method=None):
+    def __init__(self, domain, coordinates, names, calc_method, coord_restrictions):
         r"""
         Construct a chart on a real differentiable manifold.