From: Vivien Maisonneuve Date: Wed, 9 Jul 2014 16:07:44 +0000 (+0200) Subject: Fix Polyhedron.vertices() for ISL 0.13 X-Git-Tag: 1.0~134 X-Git-Url: https://scm.cri.ensmp.fr/git/linpy.git/commitdiff_plain/dba7d8fa774455d02d3cd3e0ab740fa9a727e4bb?ds=inline Fix Polyhedron.vertices() for ISL 0.13 --- diff --git a/pypol/domains.py b/pypol/domains.py index 375be85..45040c8 100644 --- a/pypol/domains.py +++ b/pypol/domains.py @@ -265,37 +265,35 @@ class Domain: islbset = self._toislbasicset(self.equalities, self.inequalities, self.symbols) vertices = libisl.isl_basic_set_compute_vertices(islbset); vertices = islhelper.isl_vertices_vertices(vertices) - points = {} - num = 0 - vertices_points = [] + points = [] for vertex in vertices: + expr = libisl.isl_vertex_get_expr(vertex) + point = {} if islhelper.isl_version < '0.13': - expr = libisl.isl_vertex_get_expr(vertex) - constraints = islhelper.isl_basic_set_constraints(expr) #get bset constraints - for index, dim in enumerate(self.symbols): - for c in constraints: #for each constraint - constant = libisl.isl_constraint_get_constant_val(c) #get constant value - constant = islhelper.isl_val_to_int(constant) - coefficient = libisl.isl_constraint_get_coefficient_val(c,libisl.isl_dim_set, index) - coefficient = islhelper.isl_val_to_int(coefficient) #get coefficient + constraints = islhelper.isl_basic_set_constraints(expr) + for constraint in constraints: + constant = libisl.isl_constraint_get_constant_val(constraint) + constant = islhelper.isl_val_to_int(constant) + for index, symbol in enumerate(self.symbols): + coefficient = libisl.isl_constraint_get_coefficient_val(constraint, + libisl.isl_dim_set, index) + coefficient = islhelper.isl_val_to_int(coefficient) if coefficient != 0: - num = -Fraction(constant, coefficient) - points[dim]= float(num) - vertices_points.append(points.copy()) + coordinate = -Fraction(constant, coefficient) + point[symbol]= coordinate else: - points = [] + # horrible hack, find a cleaner solution string = islhelper.isl_multi_aff_to_str(expr) matches = self._RE_COORDINATE.finditer(string) - point = {} for symbol, match in zip(self.symbols, matches): numerator = int(match.group('num')) denominator = match.group('den') denominator = 1 if denominator is None else int(denominator) coordinate = Fraction(numerator, denominator) point[symbol] = coordinate - points.append(point) - return vertices_points - + points.append(point) + return points + def points(self): if not self.isbounded(): raise ValueError('domain must be bounded')