mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-26 13:50:33 +05:00
433 lines
16 KiB
C++
433 lines
16 KiB
C++
#ifdef NG_PYTHON
|
|
|
|
#include <../general/ngpython.hpp>
|
|
#include <csg.hpp>
|
|
|
|
|
|
using namespace netgen;
|
|
|
|
namespace netgen
|
|
{
|
|
extern shared_ptr<NetgenGeometry> ng_geometry;
|
|
}
|
|
|
|
inline void NOOP_Deleter(void *) { ; }
|
|
|
|
|
|
// a shadow solid tree using shared pointers.
|
|
|
|
class SPSolid
|
|
{
|
|
shared_ptr<SPSolid> s1, s2;
|
|
Solid * solid;
|
|
int bc = -1;
|
|
string bcname = "";
|
|
double maxh = -1;
|
|
string material;
|
|
bool owner;
|
|
double red, green, blue;
|
|
bool transp = false;
|
|
public:
|
|
enum optyp { TERM, SECTION, UNION, SUB };
|
|
|
|
SPSolid (Solid * as) : solid(as), owner(true), op(TERM) { ; }
|
|
~SPSolid ()
|
|
{
|
|
; // if (owner) delete solid;
|
|
}
|
|
SPSolid (optyp aop, shared_ptr<SPSolid> as1, shared_ptr<SPSolid> as2)
|
|
: s1(as1), s2(as2), owner(true), op(aop)
|
|
{
|
|
if (aop == UNION)
|
|
solid = new Solid (Solid::UNION, s1->GetSolid(), s2->GetSolid());
|
|
else if (aop == SECTION)
|
|
solid = new Solid (Solid::SECTION, s1->GetSolid(), s2->GetSolid());
|
|
else if (aop == SUB)
|
|
solid = new Solid (Solid::SUB, s1->GetSolid()); // , s2->GetSolid());
|
|
}
|
|
|
|
Solid * GetSolid() { return solid; }
|
|
const Solid * GetSolid() const { return solid; }
|
|
|
|
void GiveUpOwner()
|
|
{
|
|
owner = false;
|
|
if (s1) s1 -> GiveUpOwner();
|
|
if (s2) s2 -> GiveUpOwner();
|
|
}
|
|
|
|
void AddSurfaces(CSGeometry & geom)
|
|
{
|
|
if (op == TERM)
|
|
geom.AddSurfaces (solid->GetPrimitive());
|
|
if (s1) s1 -> AddSurfaces (geom);
|
|
if (s2) s2 -> AddSurfaces (geom);
|
|
}
|
|
|
|
void SetMaterial (string mat) { material = mat; }
|
|
|
|
string GetMaterial ()
|
|
{
|
|
if (!material.empty()) return material;
|
|
if (s1)
|
|
{
|
|
string s1mat = s1->GetMaterial();
|
|
if (!s1mat.empty()) return s1mat;
|
|
}
|
|
if (s2)
|
|
{
|
|
string s2mat = s2->GetMaterial();
|
|
if (!s2mat.empty()) return s2mat;
|
|
}
|
|
return material;
|
|
}
|
|
|
|
void SetBC(int abc)
|
|
{
|
|
if (bc == -1)
|
|
{
|
|
bc = abc;
|
|
if (s1) s1 -> SetBC(bc);
|
|
if (s2) s2 -> SetBC(bc);
|
|
if (op == TERM)
|
|
{
|
|
Primitive * prim = solid -> GetPrimitive();
|
|
for (int i = 0; i < prim->GetNSurfaces(); i++)
|
|
prim->GetSurface(i).SetBCProperty (abc);
|
|
// cout << "set " << prim->GetNSurfaces() << " surfaces to bc " << bc << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SetBCName(string name)
|
|
{
|
|
if (bcname == "")
|
|
{
|
|
bcname = name;
|
|
if (s1) s1 -> SetBCName(name);
|
|
if (s2) s2 -> SetBCName(name);
|
|
if (op == TERM)
|
|
{
|
|
Primitive * prim = solid -> GetPrimitive();
|
|
for (int i = 0; i < prim->GetNSurfaces(); i++)
|
|
prim->GetSurface(i).SetBCName (name);
|
|
// cout << "set " << prim->GetNSurfaces() << " surfaces to bc " << bc << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void SetMaxH(double amaxh)
|
|
{
|
|
if (maxh == -1)
|
|
{
|
|
maxh = amaxh;
|
|
if (s1) s1 -> SetMaxH(maxh);
|
|
if (s2) s2 -> SetMaxH(maxh);
|
|
if (op == TERM)
|
|
{
|
|
Primitive * prim = solid -> GetPrimitive();
|
|
for (int i = 0; i < prim->GetNSurfaces(); i++)
|
|
prim->GetSurface(i).SetMaxH (maxh);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SetColor(double ared, double agreen, double ablue)
|
|
{
|
|
red = ared;
|
|
green = agreen;
|
|
blue = ablue;
|
|
}
|
|
|
|
double GetRed() const { return red; }
|
|
double GetGreen() const { return green; }
|
|
double GetBlue() const { return blue; }
|
|
|
|
void SetTransparent() { transp = true; }
|
|
bool IsTransparent() { return transp; }
|
|
|
|
private:
|
|
optyp op;
|
|
};
|
|
|
|
inline ostream & operator<< (ostream & ost, const SPSolid & sol)
|
|
{
|
|
ost << *sol.GetSolid();
|
|
return ost;
|
|
}
|
|
|
|
namespace netgen
|
|
{
|
|
extern CSGeometry * ParseCSG (istream & istr);
|
|
}
|
|
|
|
DLL_HEADER void ExportCSG()
|
|
{
|
|
ModuleScope module("csg");
|
|
|
|
bp::class_<Point<2>> ("Point2d", bp::init<double,double>())
|
|
.def ("__str__", &ToString<Point<2>>)
|
|
.def(bp::self-bp::self)
|
|
.def(bp::self+Vec<2>())
|
|
.def(bp::self-Vec<2>())
|
|
;
|
|
|
|
bp::class_<Point<3>> ("Point3d", bp::init<double,double,double>())
|
|
.def ("__str__", &ToString<Point<3>>)
|
|
.def(bp::self-bp::self)
|
|
.def(bp::self+Vec<3>())
|
|
.def(bp::self-Vec<3>())
|
|
;
|
|
|
|
bp::def ("Pnt", FunctionPointer
|
|
([](double x, double y, double z) { return Point<3>(x,y,z); }));
|
|
bp::def ("Pnt", FunctionPointer
|
|
([](double x, double y) { return Point<2>(x,y); }));
|
|
|
|
bp::class_<Vec<2>> ("Vec2d", bp::init<double,double>())
|
|
.def ("__str__", &ToString<Vec<3>>)
|
|
.def(bp::self+bp::self)
|
|
.def(bp::self-bp::self)
|
|
.def(-bp::self)
|
|
.def(double()*bp::self)
|
|
.def("Norm", &Vec<2>::Length)
|
|
;
|
|
|
|
bp::class_<Vec<3>> ("Vec3d", bp::init<double,double,double>())
|
|
.def ("__str__", &ToString<Vec<3>>)
|
|
.def(bp::self+bp::self)
|
|
.def(bp::self-bp::self)
|
|
.def(-bp::self)
|
|
.def(double()*bp::self)
|
|
.def("Norm", &Vec<3>::Length)
|
|
;
|
|
|
|
bp::def ("Vec", FunctionPointer
|
|
([] (double x, double y, double z) { return Vec<3>(x,y,z); }));
|
|
bp::def ("Vec", FunctionPointer
|
|
([] (double x, double y) { return Vec<2>(x,y); }));
|
|
|
|
|
|
bp::class_<SPSolid, shared_ptr<SPSolid>, boost::noncopyable> ("Solid", bp::no_init)
|
|
.def ("__str__", &ToString<SPSolid>)
|
|
.def ("__add__", FunctionPointer( [] ( shared_ptr<SPSolid> self, shared_ptr<SPSolid> other) { return make_shared<SPSolid> (SPSolid::UNION, self, other); }))
|
|
.def ("__mul__", FunctionPointer( [] ( shared_ptr<SPSolid> self, shared_ptr<SPSolid> other) { return make_shared<SPSolid> (SPSolid::SECTION, self, other); }))
|
|
.def ("__sub__", FunctionPointer
|
|
([] ( shared_ptr<SPSolid> self, shared_ptr<SPSolid> other)
|
|
{ return make_shared<SPSolid> (SPSolid::SECTION, self,
|
|
make_shared<SPSolid> (SPSolid::SUB, other, nullptr)); }))
|
|
|
|
.def ("bc", FunctionPointer([](shared_ptr<SPSolid> & self, int nr) -> shared_ptr<SPSolid>
|
|
{ self->SetBC(nr); return self; }))
|
|
.def ("bc", FunctionPointer([](shared_ptr<SPSolid> & self, string name) -> shared_ptr<SPSolid>
|
|
{ self->SetBCName(name); return self; }))
|
|
.def ("maxh", FunctionPointer([](shared_ptr<SPSolid> & self, double maxh) -> shared_ptr<SPSolid>
|
|
{ self->SetMaxH(maxh); return self; }))
|
|
.def ("mat", FunctionPointer([](shared_ptr<SPSolid> & self, string mat) -> shared_ptr<SPSolid>
|
|
{ self->SetMaterial(mat); return self; }))
|
|
.def ("mat", &SPSolid::GetMaterial)
|
|
.def("col", FunctionPointer([](shared_ptr<SPSolid> & self, bp::list rgb) -> shared_ptr<SPSolid>
|
|
{
|
|
bp::extract<double> red(rgb[0]);
|
|
bp::extract<double> green(rgb[1]);
|
|
bp::extract<double> blue(rgb[2]);
|
|
self->SetColor(red(),green(),blue());
|
|
return self;
|
|
}))
|
|
.def("transp", FunctionPointer([](shared_ptr<SPSolid> & self)->shared_ptr < SPSolid > { self->SetTransparent(); return self; }))
|
|
;
|
|
|
|
bp::def ("Sphere", FunctionPointer([](Point<3> c, double r)
|
|
{
|
|
Sphere * sp = new Sphere (c, r);
|
|
Solid * sol = new Solid (sp);
|
|
return make_shared<SPSolid> (sol);
|
|
}));
|
|
bp::def ("Plane", FunctionPointer([](Point<3> p, Vec<3> n)
|
|
{
|
|
Plane * sp = new Plane (p,n);
|
|
Solid * sol = new Solid (sp);
|
|
return make_shared<SPSolid> (sol);
|
|
}));
|
|
bp::def ("Cylinder", FunctionPointer([](Point<3> a, Point<3> b, double r)
|
|
{
|
|
Cylinder * cyl = new Cylinder (a, b, r);
|
|
Solid * sol = new Solid (cyl);
|
|
return make_shared<SPSolid> (sol);
|
|
}));
|
|
bp::def ("OrthoBrick", FunctionPointer([](Point<3> p1, Point<3> p2)
|
|
{
|
|
OrthoBrick * brick = new OrthoBrick (p1,p2);
|
|
Solid * sol = new Solid (brick);
|
|
return make_shared<SPSolid> (sol);
|
|
}));
|
|
|
|
bp::def ("Or", FunctionPointer([](shared_ptr<SPSolid> s1, shared_ptr<SPSolid> s2)
|
|
{
|
|
return make_shared<SPSolid> (SPSolid::UNION, s1, s2);
|
|
}));
|
|
bp::def ("And", FunctionPointer([](shared_ptr<SPSolid> s1, shared_ptr<SPSolid> s2)
|
|
{
|
|
return make_shared<SPSolid> (SPSolid::SECTION, s1, s2);
|
|
}));
|
|
|
|
|
|
bp::class_<CSGeometry,shared_ptr<CSGeometry>, boost::noncopyable> ("CSGeometry")
|
|
.def("__init__", bp::make_constructor (FunctionPointer
|
|
([](const string & filename)
|
|
{
|
|
cout << "load geometry";
|
|
ifstream ist(filename);
|
|
shared_ptr<CSGeometry> geom(ParseCSG(ist));
|
|
geom -> FindIdenticSurfaces(1e-8 * geom->MaxSize());
|
|
return geom;
|
|
})))
|
|
|
|
.def("__init__", bp::make_constructor (FunctionPointer
|
|
([](const bp::list & solidlist)
|
|
{
|
|
cout << "csg from list";
|
|
auto geom = make_shared<CSGeometry>();
|
|
for (int i = 0; i < len(solidlist); i++)
|
|
{
|
|
bp::object obj = solidlist[i];
|
|
cout << "obj " << i << endl;
|
|
|
|
bp::extract<shared_ptr<SPSolid>> solid(solidlist[i]);
|
|
if(solid.check())
|
|
{
|
|
cout << "its a solid" << endl;
|
|
solid()->AddSurfaces (*geom);
|
|
solid()->GiveUpOwner();
|
|
int tlonr = geom->SetTopLevelObject (solid()->GetSolid());
|
|
geom->GetTopLevelObject(tlonr) -> SetMaterial(solid()->GetMaterial());
|
|
}
|
|
}
|
|
geom -> FindIdenticSurfaces(1e-8 * geom->MaxSize());
|
|
return geom;
|
|
})))
|
|
|
|
.def("Save", FunctionPointer([] (CSGeometry & self, string filename)
|
|
{
|
|
cout << "save geometry to file " << filename << endl;
|
|
self.Save (filename);
|
|
}))
|
|
.def("Add", FunctionPointer
|
|
([] (CSGeometry & self, shared_ptr<SPSolid> solid, bp::list bcmod)
|
|
{
|
|
solid->AddSurfaces (self);
|
|
solid->GiveUpOwner();
|
|
int tlonr = self.SetTopLevelObject (solid->GetSolid());
|
|
self.GetTopLevelObject(tlonr) -> SetMaterial(solid->GetMaterial());
|
|
self.GetTopLevelObject(tlonr) -> SetRGB(solid->GetRed(),solid->GetGreen(),solid->GetBlue());
|
|
self.GetTopLevelObject(tlonr)->SetTransparent(solid->IsTransparent());
|
|
|
|
// bcmod is list of tuples ( solid, bcnr )
|
|
for (int i = 0; i < bp::len(bcmod); i++)
|
|
{
|
|
bp::tuple tup = bp::extract<bp::tuple> (bcmod[i]) ();
|
|
auto mod_solid = bp::extract<shared_ptr<SPSolid>> (tup[0]) ();
|
|
int mod_nr = -1;
|
|
string * bcname = nullptr;
|
|
bp::object val = tup[1];
|
|
if (bp::extract<int>(val).check()) mod_nr = bp::extract<int> (val)();
|
|
if (bp::extract<string>(val).check()) bcname = new string ( bp::extract<string> (val)());
|
|
|
|
Array<int> si;
|
|
mod_solid -> GetSolid() -> GetSurfaceIndices (si);
|
|
// cout << "change bc on surfaces: " << si << " to " << mod_nr << endl;
|
|
|
|
for (int j = 0; j < si.Size(); j++)
|
|
{
|
|
CSGeometry::BCModification bcm;
|
|
bcm.bcname = bcname ? new string (*bcname) : nullptr;
|
|
bcm.tlonr = tlonr;
|
|
bcm.si = si[j];
|
|
bcm.bcnr = mod_nr;
|
|
self.bcmodifications.Append (bcm);
|
|
}
|
|
delete bcname;
|
|
}
|
|
|
|
}),
|
|
(bp::arg("self"), bp::arg("solid"), bp::arg("bcmod")=bp::list())
|
|
)
|
|
|
|
.def("CloseSurfaces", FunctionPointer
|
|
([] (CSGeometry & self, shared_ptr<SPSolid> s1, shared_ptr<SPSolid> s2, int reflevels)
|
|
{
|
|
Array<int> si1, si2;
|
|
s1->GetSolid()->GetSurfaceIndices (si1);
|
|
s2->GetSolid()->GetSurfaceIndices (si2);
|
|
cout << "surface ids1 = " << si1 << endl;
|
|
cout << "surface ids2 = " << si2 << endl;
|
|
|
|
Flags flags;
|
|
const TopLevelObject * domain = nullptr;
|
|
self.AddIdentification
|
|
(new CloseSurfaceIdentification
|
|
(self.GetNIdentifications()+1, self,
|
|
self.GetSurface (si1[0]), self.GetSurface (si2[0]),
|
|
domain,
|
|
flags));
|
|
}),
|
|
(bp::arg("self"), bp::arg("solid1"), bp::arg("solid2"), bp::arg("reflevels")=2)
|
|
)
|
|
|
|
.add_property ("ntlo", &CSGeometry::GetNTopLevelObjects)
|
|
;
|
|
|
|
bp::def("GenerateMesh", FunctionPointer
|
|
([](shared_ptr<CSGeometry> geo, MeshingParameters & param)
|
|
{
|
|
auto dummy = make_shared<Mesh>();
|
|
dummy->SetGeometry(geo);
|
|
ng_geometry = geo;
|
|
geo->FindIdenticSurfaces(1e-8 * geo->MaxSize());
|
|
geo->GenerateMesh (dummy, param, 0, 6);
|
|
return dummy;
|
|
}))
|
|
;
|
|
|
|
bp::def("Save", FunctionPointer
|
|
([](const Mesh & self, const string & filename, const CSGeometry & geom)
|
|
{
|
|
ostream * outfile;
|
|
if (filename.substr (filename.length()-3, 3) == ".gz")
|
|
outfile = new ogzstream (filename.c_str());
|
|
else
|
|
outfile = new ofstream (filename.c_str());
|
|
|
|
self.Save (*outfile);
|
|
*outfile << endl << endl << "endmesh" << endl << endl;
|
|
geom.SaveToMeshFile (*outfile);
|
|
delete outfile;
|
|
}))
|
|
;
|
|
|
|
|
|
|
|
bp::def("ZRefinement", FunctionPointer
|
|
([](Mesh & mesh, CSGeometry & geom)
|
|
{
|
|
ZRefinementOptions opt;
|
|
opt.minref = 5;
|
|
ZRefinement (mesh, &geom, opt);
|
|
}))
|
|
;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
BOOST_PYTHON_MODULE(libcsg) {
|
|
ExportCSG();
|
|
}
|
|
|
|
|
|
#endif
|
|
|