/****************************************************************************** * Copyright (c)2012 Jan Rheinlaender * * * * This file is part of the FreeCAD CAx development system. * * * * This library is free software; you can redistribute it and/or * * modify it under the terms of the GNU Library General Public * * License as published by the Free Software Foundation; either * * version 2 of the License, or (at your option) any later version. * * * * This library is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU Library General Public License for more details. * * * * You should have received a copy of the GNU Library General Public * * License along with this library; see the file COPYING.LIB. If not, * * write to the Free Software Foundation, Inc., 59 Temple Place, * * Suite 330, Boston, MA 02111-1307, USA * * * ******************************************************************************/ #include "PreCompiled.h" #ifndef _PreComp_ # include # include # include # include # include # include # include #endif #include "FeatureLinearPattern.h" #include "DatumPlane.h" #include "DatumLine.h" #include #include #include #include #include using namespace PartDesign; namespace PartDesign { PROPERTY_SOURCE(PartDesign::LinearPattern, PartDesign::Transformed) LinearPattern::LinearPattern() { ADD_PROPERTY_TYPE(Direction,(0),"LinearPattern",(App::PropertyType)(App::Prop_None),"Direction"); ADD_PROPERTY(Reversed,(0)); ADD_PROPERTY(Length,(100.0)); ADD_PROPERTY(Occurrences,(3)); } short LinearPattern::mustExecute() const { if (Direction.isTouched() || Reversed.isTouched() || Length.isTouched() || Occurrences.isTouched()) return 1; return Transformed::mustExecute(); } const std::list LinearPattern::getTransformations(const std::vector) { double distance = Length.getValue(); if (distance < Precision::Confusion()) throw Base::Exception("Pattern length too small"); int occurrences = Occurrences.getValue(); if (occurrences < 2) throw Base::Exception("At least two occurrences required"); bool reversed = Reversed.getValue(); double offset = distance / (occurrences - 1); App::DocumentObject* refObject = Direction.getValue(); if (refObject == NULL) throw Base::Exception("No direction reference specified"); std::vector subStrings = Direction.getSubValues(); if (subStrings.empty()) throw Base::Exception("No direction reference specified"); gp_Dir dir; if (refObject->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId())) { Part::Part2DObject* refSketch = static_cast(refObject); Base::Axis axis; if (subStrings[0] == "H_Axis") axis = refSketch->getAxis(Part::Part2DObject::H_Axis); else if (subStrings[0] == "V_Axis") axis = refSketch->getAxis(Part::Part2DObject::V_Axis); else if (subStrings[0] == "N_Axis") axis = refSketch->getAxis(Part::Part2DObject::N_Axis); else if (subStrings[0].size() > 4 && subStrings[0].substr(0,4) == "Axis") { int AxId = std::atoi(subStrings[0].substr(4,4000).c_str()); if (AxId >= 0 && AxId < refSketch->getAxisCount()) axis = refSketch->getAxis(AxId); } axis *= refSketch->Placement.getValue(); dir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z); } else if (refObject->getTypeId().isDerivedFrom(PartDesign::Plane::getClassTypeId())) { PartDesign::Plane* plane = static_cast(refObject); Base::Vector3d d = plane->getNormal(); dir = gp_Dir(d.x, d.y, d.z); } else if (refObject->getTypeId().isDerivedFrom(PartDesign::Line::getClassTypeId())) { PartDesign::Line* line = static_cast(refObject); Base::Vector3d d = line->getDirection(); dir = gp_Dir(d.x, d.y, d.z); } else if (refObject->getTypeId().isDerivedFrom(App::Plane::getClassTypeId())) { App::Plane* plane = static_cast(refObject); Base::Rotation rot = plane->Placement.getValue().getRotation(); Base::Vector3d d(0,0,1); rot.multVec(d, d); dir = gp_Dir(d.x, d.y, d.z); } else if (refObject->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) { if (subStrings[0].empty()) throw Base::Exception("No direction reference specified"); Part::Feature* refFeature = static_cast(refObject); Part::TopoShape refShape = refFeature->Shape.getShape(); TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str()); if (ref.ShapeType() == TopAbs_FACE) { TopoDS_Face refFace = TopoDS::Face(ref); if (refFace.IsNull()) throw Base::Exception("Failed to extract direction plane"); BRepAdaptor_Surface adapt(refFace); if (adapt.GetType() != GeomAbs_Plane) throw Base::Exception("Direction face must be planar"); dir = adapt.Plane().Axis().Direction(); } else if (ref.ShapeType() == TopAbs_EDGE) { TopoDS_Edge refEdge = TopoDS::Edge(ref); if (refEdge.IsNull()) throw Base::Exception("Failed to extract direction edge"); BRepAdaptor_Curve adapt(refEdge); if (adapt.GetType() != GeomAbs_Line) throw Base::Exception("Direction edge must be a straight line"); dir = adapt.Line().Direction(); } else { throw Base::Exception("Direction reference must be edge or face"); } } else { throw Base::Exception("Direction reference must be edge/face of a feature or a datum line/plane"); } TopLoc_Location invObjLoc = this->getLocation().Inverted(); dir.Transform(invObjLoc.Transformation()); gp_Vec direction(dir.X(), dir.Y(), dir.Z()); if (reversed) direction.Reverse(); // Note: The original feature is NOT included in the list of transformations! Therefore // we start with occurrence number 1, not number 0 std::list transformations; gp_Trsf trans; transformations.push_back(trans); // identity transformation for (int i = 1; i < occurrences; i++) { trans.SetTranslation(direction * i * offset); transformations.push_back(trans); } return transformations; } }