Files
solver/GNN/OndselSolver/SystemSolver.h
forbes-0023 98051ba0c9 feat: add Phase 1 constraint solver addon, move prior content to GNN/
- Move existing OndselSolver, GNN ML layer, and tooling into GNN/
  directory for integration in later phases
- Add Create addon scaffold: package.xml, Init.py
- Add expression DAG with eval, symbolic diff, simplification
- Add parameter table with fixed/free variable tracking
- Add quaternion rotation as polynomial Expr trees
- Add RigidBody entity (7 DOF: position + unit quaternion)
- Add constraint classes: Coincident, DistancePointPoint, Fixed
- Add Newton-Raphson solver with symbolic Jacobian + numpy lstsq
- Add pre-solve passes: substitution + single-equation
- Add DOF counting via Jacobian SVD rank
- Add KindredSolver IKCSolver bridge for kcsolve integration
- Add 82 unit tests covering all modules

Registers as 'kindred' solver via kcsolve.register_solver() when
loaded by Create's addon_loader.
2026-02-20 20:35:47 -06:00

121 lines
4.3 KiB
C++

/***************************************************************************
* Copyright (c) 2023 Ondsel, Inc. *
* *
* This file is part of OndselSolver. *
* *
* See LICENSE file for details about copyright. *
***************************************************************************/
#pragma once
#include <memory>
#include <vector>
#include <functional>
#include <set>
#include "Solver.h"
#include "System.h"
#include "IntegratorInterface.h"
//#include "Constraint.h"
//#include "NewtonRaphson.h"
//#include "QuasiIntegrator.h"
namespace MbD {
class System;
class Constraint;
class Solver;
class QuasiIntegrator;
class Limit;
class SystemSolver : public Solver
{
//system parts jointsMotions forcesTorques sensors variables icTypeSolver setsOfRedundantConstraints errorTolPosKine errorTolAccKine
//iterMaxPosKine iterMaxAccKine basicIntegrator tstartPasts tstart hmin hmax tend toutFirst hout direction corAbsTol corRelTol
//intAbsTol intRelTol iterMaxDyn orderMax translationLimit rotationLimit
public:
SystemSolver(System* x) : system(x) {
initialize();
}
void setSystem(Solver* sys) override;
void initialize() override;
void initializeLocally() override;
void initializeGlobally() override;
void runAllIC();
void runPosIC();
void runVelIC();
void runAccIC();
bool needToRedoPosIC();
void preCollision();
void runCollisionDerivativeIC();
void runBasicCollision();
void runBasicKinematic();
void runPreDrag();
void runDragStep(std::shared_ptr<std::vector<std::shared_ptr<Part>>> dragParts);
void runQuasiKinematic();
void runPosKine();
void runVelKine();
void runAccKine();
void runPosICDrag(std::shared_ptr<std::vector<std::shared_ptr<Part>>> dragParts);
void runPosICDragLimit();
void runPosICKine();
void runVelICKine();
void runAccICKine();
void logString(const std::string& str) override;
std::shared_ptr<std::vector<std::shared_ptr<Part>>> parts();
std::shared_ptr<std::vector<std::shared_ptr<LimitIJ>>> limits();
//std::shared_ptr<std::vector<ContactEndFrame>> contactEndFrames();
//std::shared_ptr<std::vector<UHolder>> uHolders();
std::shared_ptr<std::vector<std::shared_ptr<Constraint>>> essentialConstraints();
std::shared_ptr<std::vector<std::shared_ptr<Constraint>>> displacementConstraints();
std::shared_ptr<std::vector<std::shared_ptr<Constraint>>> perpendicularConstraints();
std::shared_ptr<std::vector<std::shared_ptr<Constraint>>> allRedundantConstraints();
std::shared_ptr<std::vector<std::shared_ptr<Constraint>>> allConstraints();
virtual void postNewtonRaphson();
void partsJointsMotionsDo(const std::function <void(std::shared_ptr<Item>)>& f);
void partsJointsMotionsForcesTorquesDo(const std::function <void(std::shared_ptr<Item>)>& f);
void partsJointsMotionsLimitsDo(const std::function <void(std::shared_ptr<Item>)>& f);
void partsJointsMotionsLimitsForcesTorquesDo(const std::function <void(std::shared_ptr<Item>)>& f);
void discontinuityBlock();
double startTime();
double outputStepSize();
double maxStepSize();
double minStepSize();
double firstOutputTime();
double endTime();
void settime(double tnew);
System* system; //Use raw pointer when pointing backwards.
std::shared_ptr<Solver> icTypeSolver;
std::shared_ptr<std::vector<std::shared_ptr<std::set<std::string>>>> setsOfRedundantConstraints;
void tstartPastsAddFirst(double t);
void output();
void time(double t);
bool limitsSatisfied();
void deactivateLimits();
double errorTolPosKine = 1.0e-6;
double errorTolAccKine = 1.0e-6;
size_t iterMaxPosKine = 25;
size_t iterMaxAccKine = 25;
std::shared_ptr <IntegratorInterface> basicIntegrator;
std::shared_ptr<std::vector<double>> tstartPasts;
double tstart = 0.0;
double tend = 25;
double toutFirst = 0.0;
double hmin = 1.0e-9;
double hmax = 1.0;
double hout = 1.0e-1;
double direction = 1;
double corAbsTol = 0.0;
double corRelTol = 0.0;
double intAbsTol = 0.0;
double intRelTol = 0.0;
size_t iterMaxDyn = 0;
size_t orderMax = 0;
double translationLimit = 0.0;
double rotationLimit = 0.0;
};
}