suzanne.soy/FreeCAD
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Part: BSpline serialization

Browse Source 
===========================

It stores a rational BSpline even if non-rational.

It should be extended to store in addition whether it is periodic or not, i.e. to support periodic BSplines.
This commit is contained in:
Abdullah Tahiri 2017-01-08 00:42:30 +01:00
parent c20b17f721
commit 61b685fd53
1 changed files with 124 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

127
src/Mod/Part/App/Geometry.cpp
View File

@ -802,9 +802,130 @@ void GeomBSplineCurve::makeC1Continuous(double tol, double ang_tol)
}
// Persistence implementer
unsigned int GeomBSplineCurve::getMemSize (void) const {assert(0); return 0;/* not implemented yet */}
void GeomBSplineCurve::Save (Base::Writer &/*writer*/) const {assert(0); /* not implemented yet */}
void GeomBSplineCurve::Restore (Base::XMLReader &/*reader*/) {assert(0); /* not implemented yet */}
unsigned int GeomBSplineCurve::getMemSize (void) const
{
return sizeof(Geom_BSplineCurve);
}
void GeomBSplineCurve::Save(Base::Writer& writer) const
{
// save the attributes of the father class
GeomCurve::Save(writer);
std::vector<Base::Vector3d> poles = this->getPoles();
std::vector<double> weights = this->getWeights();
std::vector<double> knots = this->getKnots();
std::vector<int> mults = this->getMultiplicities();
int degree = this->getDegree();
writer.Stream()
<< writer.ind()
<< "<BSplineCurve "
<< "PolesCount=\"" << poles.size() <<
"\" KnotsCount=\"" << knots.size() <<
"\" Degree=\"" << degree <<
"\">" << endl;
writer.incInd();
for(std::vector<Base::Vector3d>::const_iterator it = poles.begin(); it != poles.end(); ++it){
writer.Stream()
<< writer.ind()
<< "<Pole "
<< "X=\"" << (*it).x <<
"\" Y=\"" << (*it).y <<
"\" Z=\"" << (*it).z <<
"\"/>" << endl;
}
for(std::vector<double>::const_iterator it = weights.begin(); it != weights.end(); ++it){
writer.Stream()
<< writer.ind()
<< "<Weight "
<< "value=\"" << (*it) <<
"\"/>" << endl;
}
for(std::vector<double>::const_iterator it = knots.begin(); it != knots.end(); ++it){
writer.Stream()
<< writer.ind()
<< "<Knot "
<< "value=\"" << (*it) <<
"\"/>" << endl;
}
for(std::vector<int>::const_iterator it = mults.begin(); it != mults.end(); ++it){
writer.Stream()
<< writer.ind()
<< "<Mult "
<< "value=\"" << (*it) <<
"\"/>" << endl;
}
writer.decInd();
writer.Stream() << writer.ind() << "</BSplineCurve>" << endl ;
}
void GeomBSplineCurve::Restore(Base::XMLReader& reader)
{
// read the attributes of the father class
GeomCurve::Restore(reader);
reader.readElement("BSplineCurve");
// get the value of my attribute
int polescount = reader.getAttributeAsInteger("PolesCount");
int knotscount = reader.getAttributeAsInteger("KnotsCount");
int degree = reader.getAttributeAsInteger("Degree");
// You are here!!
// Handle_Geom_BSplineCurve spline = new
// Geom_BSplineCurve(occpoles,occweights,occknots,occmults,degree,
// PyObject_IsTrue(periodic) ? Standard_True : Standard_False,
// PyObject_IsTrue(CheckRational) ? Standard_True : Standard_False);
TColgp_Array1OfPnt p(1,polescount);
TColStd_Array1OfReal w(1,polescount);
TColStd_Array1OfReal k(1,knotscount);
TColStd_Array1OfInteger m(1,knotscount);
for (int i = 1; i <= polescount; i++) {
reader.readElement("Pole");
double X = reader.getAttributeAsFloat("X");
double Y = reader.getAttributeAsFloat("Y");
double Z = reader.getAttributeAsFloat("Z");
p.SetValue(i, gp_Pnt(X,Y,Z));
}
for (int i = 1; i <= polescount; i++) {
reader.readElement("Weight");
double val = reader.getAttributeAsFloat("value");
w.SetValue(i, val);
}
for (int i = 1; i <= knotscount; i++) {
reader.readElement("Knot");
double val = reader.getAttributeAsFloat("value");
k.SetValue(i, val);
}
for (int i = 1; i <= knotscount; i++) {
reader.readElement("Mult");
double val = reader.getAttributeAsInteger("value");
m.SetValue(i, val);
}
reader.readEndElement("BSplineCurve");
// Geom_BSplineCurve(occpoles,occweights,occknots,occmults,degree,periodic,CheckRational
try {
Handle_Geom_BSplineCurve spline = new Geom_BSplineCurve(p, w, k, m, degree, Standard_False, Standard_False);
if (!spline.IsNull())
this->myCurve = spline;
else
throw Base::Exception("BSpline restore failed");
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
throw Base::Exception(e->GetMessageString());
}
}
PyObject *GeomBSplineCurve::getPyObject(void)
{