Add vertices and points, messy!

[linpy.git] / pypol / domains.py

diff --git a/pypol/domains.py b/pypol/domains.py
index a2650e4..f3f551a 100644 (file)
--- a/pypol/domains.py
+++ b/pypol/domains.py
@@ -246,7 +246,37 @@ class Domain:
         value = bool(libisl.isl_set_involves_dims(islset, libisl.isl_dim_set, first, n))
         libisl.isl_set_free(islset)
         return value
-
+    
+    def vertices(self):
+        if self.isbounded():
+            islbset = self._toislbasicset(self.equalities, self.inequalities, self.symbols)
+            vertices = libisl.isl_basic_set_compute_vertices(islbset);
+            vertexes = islhelper.isl_vertices_vertices(vertices)
+            #vertex = libisl.isl_vertices_get_n_vertices(vertices)
+            for verts in vertexes:
+                expr = libisl.isl_vertex_get_expr(verts);
+                this = islhelper.isl_set_to_str(expr)
+                print(this)
+        else:
+            raise TypeError('set must be bounded')
+        return string
+
+    def points(self):
+        bounds = {}
+        coordinates = []
+        symbols = self.symbols
+        if self.isbounded():
+            islset = self._toislset(self.polyhedra, self.symbols)
+            points = islhelper.isl_set_points(islset)
+            for sym in symbols:
+                for point in points:
+                    coordinate = libisl.isl_point_get_coordinate_val(point, libisl.isl_dim_set, symbols.index(sym))
+                    coordinate = islhelper.isl_val_to_int(coordinate)
+                    coordinates.append(coordinate)
+        else:
+            raise TypeError('set must be bounded')
+        return coordinates
+    
     @classmethod
     def _fromislset(cls, islset, symbols):
         from .polyhedra import Polyhedron