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Improvements to FEM constraint objects

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This commit is contained in:
jrheinlaender
2013-03-08 19:59:08 +04:30
parent 517443fb59
commit f5c6e4eae3
29 changed files with 939 additions and 318 deletions
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41
src/Mod/Fem/App/FemConstraintPulley.cpp
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@@ -40,15 +40,23 @@
using namespace Fem;
PROPERTY_SOURCE(Fem::ConstraintPulley, Fem::ConstraintBearing);
PROPERTY_SOURCE(Fem::ConstraintPulley, Fem::ConstraintGear);
ConstraintPulley::ConstraintPulley()
{
ADD_PROPERTY(Diameter,(0));
ADD_PROPERTY(OtherDiameter,(0));
ADD_PROPERTY(CenterDistance,(0));
ADD_PROPERTY_TYPE(Angle,(0),"ConstraintPulley",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Angle of pulley forces");
ADD_PROPERTY(IsDriven,(0));
ADD_PROPERTY(TensionForce,(0.0));
ADD_PROPERTY_TYPE(BeltAngle,(0),"ConstraintPulley",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Angle of belt forces");
ADD_PROPERTY_TYPE(BeltForce1,(0.0),"ConstraintPulley",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"First belt force");
ADD_PROPERTY_TYPE(BeltForce2,(0.0),"ConstraintPulley",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Second belt force");
ForceAngle.setValue(90.0);
Diameter.setValue(300.0);
}
App::DocumentObjectExecReturn *ConstraintPulley::execute(void)
@@ -58,12 +66,31 @@ App::DocumentObjectExecReturn *ConstraintPulley::execute(void)
void ConstraintPulley::onChanged(const App::Property* prop)
{
ConstraintBearing::onChanged(prop);
ConstraintGear::onChanged(prop);
if ((prop == &Diameter) || (prop == &OtherDiameter) || (prop == &CenterDistance)) {
if (CenterDistance.getValue() > Precision::Confusion()) {
Angle.setValue(asin((Diameter.getValue() - OtherDiameter.getValue())/2/CenterDistance.getValue()));
Angle.touch();
BeltAngle.setValue(asin((Diameter.getValue() - OtherDiameter.getValue())/2/CenterDistance.getValue()));
BeltAngle.touch();
}
} else if ((prop == &Force) || (prop == &TensionForce) || (prop == &IsDriven)) {
double radius = Diameter.getValue() / 2.0;
if (radius < Precision::Confusion())
return;
double force = Force.getValue() / (radius/1000);
if (fabs(force) < Precision::Confusion())
return;
bool neg = (force < 0.0);
if (neg)
force *= -1.0;
if ((IsDriven.getValue() && neg) || (!IsDriven.getValue() && !neg)) {
BeltForce1.setValue(force + TensionForce.getValue());
BeltForce2.setValue(TensionForce.getValue());
} else {
BeltForce2.setValue(force + TensionForce.getValue());
BeltForce1.setValue(TensionForce.getValue());
}
BeltForce1.touch();
}
}