Stay organized with collections
Save and categorize content based on your preferences.
C++ Reference: class FlowCoverCutHelper
Note: This documentation is automatically generated.
| Method |
ComputeFlowCoverRelaxation | Return type: SingleNodeFlow Arguments:
const LinearConstraint& base_ct,
const absl::StrongVector<IntegerVariable, double>& lp_values,
IntegerTrail* integer_trail, ImpliedBoundsProcessor* ib_helper Try to extract a nice SingleNodeFlow relaxation for the given upper bounded
linear constraint.
|
cut | Return type: const LinearConstraint& |
GenerateCut | Return type: bool Arguments: const SingleNodeFlow& data Try to generate a cut for the given single node flow problem. Returns true
if a cut was generated. It can be accessed by cut()/mutable_cut().
|
Info | Return type: const std::string Single line of text that we append to the cut log line.
|
mutable_cut | Return type: LinearConstraint* If successful, info about the last generated cut.
|
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-08-06 UTC.
[null,null,["Last updated 2024-08-06 UTC."],[[["\u003cp\u003e\u003ccode\u003eFlowCoverCutHelper\u003c/code\u003e assists in generating cuts for the single node flow problem based on a given linear constraint and LP values.\u003c/p\u003e\n"],["\u003cp\u003eThe core functionality involves computing a flow cover relaxation (\u003ccode\u003eComputeFlowCoverRelaxation\u003c/code\u003e) and subsequently attempting to generate a cut (\u003ccode\u003eGenerateCut\u003c/code\u003e).\u003c/p\u003e\n"],["\u003cp\u003eIf a cut is successfully generated, it can be accessed via the \u003ccode\u003ecut()\u003c/code\u003e or \u003ccode\u003emutable_cut()\u003c/code\u003e methods, along with associated information (\u003ccode\u003eInfo\u003c/code\u003e).\u003c/p\u003e\n"]]],["The `FlowCoverCutHelper` class in C++ facilitates generating cuts for optimization problems. It includes methods to `ComputeFlowCoverRelaxation` for extracting a `SingleNodeFlow` relaxation from a linear constraint. The `GenerateCut` method attempts to produce a cut for a given `SingleNodeFlow`, returning true if successful. Generated cut details are accessible via `cut()` or `mutable_cut()`. Additional info for logging is provided by the `Info` method.\n"],null,["# FlowCoverCutHelper\n\nC++ Reference: class FlowCoverCutHelper\n=======================================\n\n\nNote: This documentation is automatically generated.\n\n| Method ||\n|------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [`ComputeFlowCoverRelaxation`](https://github.com/google/or-tools/blob/v9.4/ortools/sat/cuts.h#L213) | Return type: `SingleNodeFlow ` Arguments: ` const LinearConstraint& base_ct, const absl::StrongVector\u003cIntegerVariable, double\u003e& lp_values, IntegerTrail* integer_trail, ImpliedBoundsProcessor* ib_helper` Try to extract a nice SingleNodeFlow relaxation for the given upper bounded linear constraint. |\n| [`cut`](https://github.com/google/or-tools/blob/v9.4/ortools/sat/cuts.h#L224) | Return type: `const LinearConstraint& ` \u003cbr /\u003e |\n| [`GenerateCut`](https://github.com/google/or-tools/blob/v9.4/ortools/sat/cuts.h#L220) | Return type: `bool ` Arguments: `const SingleNodeFlow& data` Try to generate a cut for the given single node flow problem. Returns true if a cut was generated. It can be accessed by cut()/mutable_cut(). |\n| [`Info`](https://github.com/google/or-tools/blob/v9.4/ortools/sat/cuts.h#L227) | Return type: `const std::string ` Single line of text that we append to the cut log line. |\n| [`mutable_cut`](https://github.com/google/or-tools/blob/v9.4/ortools/sat/cuts.h#L223) | Return type: `LinearConstraint* ` If successful, info about the last generated cut. |"]]
