Files
solver/GNN/OndselSolver/Integral.cpp
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

60 lines
1.4 KiB
C++

#include "Integral.h"
using namespace MbD;
MbD::Integral::Integral(Symsptr arg) : ExpressionX(arg)
{
}
MbD::Integral::Integral(Symsptr, Symsptr)
{
throw SimulationStoppingError("To be implemented.");
}
void MbD::Integral::arguments(Symsptr args)
{
auto arguments = args->getTerms();
xx = arguments->at(0);
integrand = arguments->at(1);
expression = integrand->integrateWRT(xx);
}
Symsptr MbD::Integral::expandUntil(Symsptr, std::shared_ptr<std::unordered_set<Symsptr>> set)
{
auto expand = expression->expandUntil(expression, set);
auto answer = std::make_shared<Integral>();
answer->xx = xx;
answer->expression = expand;
answer->integrand = integrand;
answer->integrationConstant = integrationConstant;
return answer;
}
Symsptr MbD::Integral::simplifyUntil(Symsptr, std::shared_ptr<std::unordered_set<Symsptr>> set)
{
auto simple = expression->simplifyUntil(expression, set);
auto answer = std::make_shared<Integral>();
answer->xx = xx;
answer->expression = simple;
answer->integrand = integrand;
answer->integrationConstant = integrationConstant;
return answer;
}
void MbD::Integral::setIntegrationConstant(double integConstant)
{
integrationConstant = sptrConstant(integConstant);
}
std::ostream& MbD::Integral::printOn(std::ostream& s) const
{
s << *expression << " + ";
s << *integrationConstant;
return s;
}
Symsptr MbD::Integral::copyWith(Symsptr arg)
{
return std::make_shared<Integral>(arg);
}