Files
solver/GNN/OndselSolver/DifferenceOperator.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

39 lines
1.3 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 "FullMatrix.h"
namespace MbD {
class DifferenceOperator
{
//iStep order taylorMatrix operatorMatrix time timeNodes
public:
virtual ~DifferenceOperator() {}
void calcOperatorMatrix();
virtual void initialize();
virtual void initializeLocally();
virtual void setiStep(size_t i);
virtual void setorder(size_t o);
virtual void formTaylorMatrix() = 0;
virtual void instantiateTaylorMatrix();
virtual void formTaylorRowwithTimeNodederivative(size_t i, size_t ii, size_t k);
void settime(double t);
size_t iStep = 0, order = 0;
FMatDsptr taylorMatrix, operatorMatrix;
double time = 0.0;
std::shared_ptr<std::vector<double>> timeNodes; //"Row of past times in order of increasing past."
static FRowDsptr OneOverFactorials;
};
}