Base::Vector3d Extrusion::calculateShapeNormal(const App::PropertyLink& shapeLink)
{
if (!shapeLink.getValue())
throw Base::Exception("calculateShapeNormal: link is empty");
const App::DocumentObject* docobj = shapeLink.getValue();
//special case for sketches and the like: no matter what shape they have, use their local Z axis.
if (docobj->isDerivedFrom(Part::Part2DObject::getClassTypeId())){
const Part::Part2DObject* p2do = static_cast<const Part::Part2DObject*>(docobj);
Base::Vector3d OZ (0.0, 0.0, 1.0);
Base::Vector3d result;
p2do->Placement.getValue().getRotation().multVec(OZ, result);
return result;
}
//extract the shape
if (! docobj->isDerivedFrom(Part::Feature::getClassTypeId()))
throw Base::TypeError("Linked object doesn't have shape.");
const TopoShape &tsh = static_cast<const Part::Feature*>(docobj)->Shape.getShape();
TopoDS_Shape sh = tsh.getShape();
if (sh.IsNull())
throw Base::Exception("calculateShapeNormal: link points to a valid object, but its shape is null.");
//find plane
BRepLib_FindSurface planeFinder(sh, -1, /*OnlyPlane=*/true);
if (! planeFinder.Found())
throw Base::ValueError("Can't find normal direction, because the shape is not on a plane.");
//find plane normal and return result.
GeomAdaptor_Surface surf(planeFinder.Surface());
gp_Dir normal = surf.Plane().Axis().Direction();
//now se know the plane. But if there are faces, the
//plane normal direction is not dependent on face orientation (because findPlane only uses edges).
//let's fix that.
TopExp_Explorer ex(sh, TopAbs_FACE);
if(ex.More()) {
BRepAdaptor_Surface surf(TopoDS::Face(ex.Current()));
normal = surf.Plane().Axis().Direction();
if (ex.Current().Orientation() == TopAbs_REVERSED){
normal.Reverse();
}
}
return Base::Vector3d(normal.X(), normal.Y(), normal.Z());
}
void DlgExtrusion::fetchDir()
{
bool lengths_are_at_defaults =
(fabs(ui->spinLenFwd->value().getValue() - 10.0) < 1e-7)
&& (fabs(ui->spinLenRev->value().getValue() - 0.0) < 1e-7);
bool lengths_are_zero =
(fabs(ui->spinLenFwd->value().getValue() - 0.0) < 1e-7)
&& (fabs(ui->spinLenRev->value().getValue() - 0.0) < 1e-7);
try {
Base::Vector3d pos, dir;
bool fetched = false;
bool dir_has_valid_magnitude = false;
if(this->getDirMode() == Part::Extrusion::dmEdge) {
App::PropertyLinkSub lnk;
this->getAxisLink(lnk);
fetched = Part::Extrusion::fetchAxisLink(lnk, pos, dir);
dir_has_valid_magnitude = fetched;
} else if (this->getDirMode() == Part::Extrusion::dmNormal) {
App::PropertyLink lnk;
lnk.setValue(&this->getShapeToExtrude());
dir = Part::Extrusion::calculateShapeNormal(lnk);
fetched = true;
}
if (dir_has_valid_magnitude && lengths_are_at_defaults) {
ui->spinLenFwd->setValue(0);
} else if (!dir_has_valid_magnitude && lengths_are_zero) {
ui->spinLenFwd->setValue(1.0);
}
if (fetched) {
this->setDir(dir);
}
} catch (Base::Exception &) {
} catch (...) {
}
}
//DVA is still Source PropertyLink so needs different logic vs DV::Restore
void DrawViewArch::Restore(Base::XMLReader &reader)
{
// this is temporary code for backwards compat (within v0.17). can probably be deleted once there are no development
// fcstd files with old property types in use.
reader.readElement("Properties");
int Cnt = reader.getAttributeAsInteger("Count");
for (int i=0 ;i<Cnt ;i++) {
reader.readElement("Property");
const char* PropName = reader.getAttribute("name");
const char* TypeName = reader.getAttribute("type");
App::Property* schemaProp = getPropertyByName(PropName);
try {
if(schemaProp){
if (strcmp(schemaProp->getTypeId().getName(), TypeName) == 0){ //if the property type in obj == type in schema
schemaProp->Restore(reader); //nothing special to do
} else if (strcmp(PropName, "Source") == 0) {
App::PropertyLinkGlobal glink;
App::PropertyLink link;
if (strcmp(glink.getTypeId().getName(),TypeName) == 0) { //property in file is plg
glink.setContainer(this);
glink.Restore(reader);
if (glink.getValue() != nullptr) {
static_cast<App::PropertyLink*>(schemaProp)->setScope(App::LinkScope::Global);
static_cast<App::PropertyLink*>(schemaProp)->setValue(glink.getValue());
}
} else if (strcmp(link.getTypeId().getName(),TypeName) == 0) { //property in file is pl
link.setContainer(this);
link.Restore(reader);
if (link.getValue() != nullptr) {
static_cast<App::PropertyLink*>(schemaProp)->setScope(App::LinkScope::Global);
static_cast<App::PropertyLink*>(schemaProp)->setValue(link.getValue());
}
} else {
// has Source prop isn't PropertyLink or PropertyLinkGlobal!
Base::Console().Log("DrawViewArch::Restore - old Document Source is weird: %s\n", TypeName);
// no idea
}
} else {
Base::Console().Log("DrawViewArch::Restore - old Document has unknown Property\n");
}
}
}
catch (const Base::XMLParseException&) {
throw; // re-throw
}
catch (const Base::Exception &e) {
Base::Console().Error("%s\n", e.what());
}
catch (const std::exception &e) {
Base::Console().Error("%s\n", e.what());
}
catch (const char* e) {
Base::Console().Error("%s\n", e);
}
#ifndef FC_DEBUG
catch (...) {
Base::Console().Error("PropertyContainer::Restore: Unknown C++ exception thrown\n");
}
#endif
reader.readEndElement("Property");
}
reader.readEndElement("Properties");
}
bool DlgExtrusion::validate()
{
//check source shapes
if (ui->treeWidget->selectedItems().isEmpty()) {
QMessageBox::critical(this, windowTitle(),
tr("No shapes selected for extrusion. Select some, first."));
return false;
}
//check axis link
QString errmsg;
bool hasValidAxisLink = false;
try{
App::PropertyLinkSub lnk;
this->getAxisLink(lnk);
Base::Vector3d dir, base;
hasValidAxisLink = Part::Extrusion::fetchAxisLink(lnk, base, dir);
} catch(Base::Exception &err) {
errmsg = QString::fromUtf8(err.what());
} catch(Standard_Failure &err) {
errmsg = QString::fromLocal8Bit(err.GetMessageString());
} catch(...) {
errmsg = QString::fromUtf8("Unknown error");
}
if (this->getDirMode() == Part::Extrusion::dmEdge && !hasValidAxisLink){
if (errmsg.length() > 0)
QMessageBox::critical(this, windowTitle(), tr("Extrusion direction link is invalid.\n\n%1").arg(errmsg));
else
QMessageBox::critical(this, windowTitle(), tr("Direction mode is to use an edge, but no edge is linked."));
ui->txtLink->setFocus();
return false;
} else if (this->getDirMode() != Part::Extrusion::dmEdge && !hasValidAxisLink){
//axis link is invalid, but it is not required by the mode. We shouldn't complain it's invalid then...
ui->txtLink->clear();
}
//check normal
if (this->getDirMode() == Part::Extrusion::dmNormal){
errmsg.clear();
try {
App::PropertyLink lnk;
lnk.setValue(&this->getShapeToExtrude()); //simplified - check only for the first shape.
Part::Extrusion::calculateShapeNormal(lnk);
} catch(Base::Exception &err) {
errmsg = QString::fromUtf8(err.what());
} catch(Standard_Failure &err) {
errmsg = QString::fromLocal8Bit(err.GetMessageString());
} catch(...) {
errmsg = QString::fromUtf8("Unknown error");
}
if (errmsg.length() > 0){
QMessageBox::critical(this, windowTitle(), tr("Can't determine normal vector of shape to be extruded. Please use other mode. \n\n(%1)").arg(errmsg));
ui->rbDirModeNormal->setFocus();
return false;
}
}
//check axis dir
if (this->getDirMode() == Part::Extrusion::dmCustom){
if(this->getDir().Length() < Precision::Confusion()){
QMessageBox::critical(this, windowTitle(),
tr("Extrusion direction is zero-length. It must be non-zero."));
ui->dirX->setFocus();
return false;
}
}
//check lengths
if (!ui->chkSymmetric->isChecked()
&& fabs(ui->spinLenFwd->value().getValue() + ui->spinLenRev->value().getValue()) < Precision::Confusion()
&& ! (fabs(ui->spinLenFwd->value().getValue() - ui->spinLenRev->value().getValue()) < Precision::Confusion())){
QMessageBox::critical(this, windowTitle(),
tr("Total extrusion length is zero (length1 == -length2). It must be nonzero."));
ui->spinLenFwd->setFocus();
return false;
}
return true;
}
