InternalSolver: set_constraint_sense, set_constraint_rhs

2025-12-08 02:18:51 -06:00 · 2020-12-05 21:09:35 -06:00
parent 8bb9996384
commit 5b5f4b7671
4 changed files with 36 additions and 7 deletions
--- a/miplearn/solvers/gurobi.py
+++ b/miplearn/solvers/gurobi.py
@@ -274,6 +274,14 @@ class GurobiSolver(InternalSolver):
    def get_constraint_slacks(self):
        return {c.ConstrName: c.Slack for c in self.model.getConstrs()}

+    def set_constraint_sense(self, cid, sense):
+        c = self.model.getConstrByName(cid)
+        c.Sense = sense
+
+    def set_constraint_rhs(self, cid, rhs):
+        c = self.model.getConstrByName(cid)
+        c.RHS = rhs
+
    def relax(self):
        self.model = self.model.relax()
        self._update_vars()