From: Vivien Maisonneuve Date: Sun, 6 Jul 2014 10:22:41 +0000 (+0200) Subject: Add methods Domain.subs(), Polyhedron.subs() X-Git-Tag: 1.0~138 X-Git-Url: https://scm.cri.ensmp.fr/git/linpy.git/commitdiff_plain/17f12d8f63d696f09dbb44be3dc24b9aba7b88d3?hp=9de8ee74599e94260da37ce8349ac04cc3ae89c3 Add methods Domain.subs(), Polyhedron.subs() --- diff --git a/pypol/domains.py b/pypol/domains.py index fdb0ab0..2fbd544 100644 --- a/pypol/domains.py +++ b/pypol/domains.py @@ -301,6 +301,11 @@ class Domain: points.append(point) return points + def subs(self, symbol, expression=None): + polyhedra = [polyhedron.subs(symbol, expression) + for polyhedron in self.polyhedra] + return Domain(*polyhedra) + @classmethod def _fromislset(cls, islset, symbols): from .polyhedra import Polyhedron @@ -323,6 +328,7 @@ class Domain: self._dimension = len(self._symbols) return self + @classmethod def _toislset(cls, polyhedra, symbols): polyhedron = polyhedra[0] islbset = polyhedron._toislbasicset(polyhedron.equalities, diff --git a/pypol/polyhedra.py b/pypol/polyhedra.py index a6adeda..63ecb64 100644 --- a/pypol/polyhedra.py +++ b/pypol/polyhedra.py @@ -85,6 +85,13 @@ class Polyhedron(Domain): def aspolyhedron(self): return self + def subs(self, symbol, expression=None): + equalities = [equality.subs(symbol, expression) + for equality in self.equalities] + inequalities = [inequality.subs(symbol, expression) + for inequality in self.inequalities] + return Polyhedron(equalities, inequalities) + @classmethod def _fromislbasicset(cls, islbset, symbols): islconstraints = islhelper.isl_basic_set_constraints(islbset)