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Path: added Path.fromShapes and Path.sortWires

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* Path.fromShapes can now convert any number of shapes to Path with
optimzied travel distances. It internally uses Path.sortWires to
minimize travel distances, and also sort wires by its Z height in case
of sectioned wires.

* The above python function is impelmented in Path::Area class.

* Path::FeatureShape is rewrote to take advantage of these two
functions.

* Add Path::FeatureAreaView to partially display a Path::FeatureArea's
sections.
This commit is contained in:
Zheng, Lei
2017-01-27 17:13:16 +08:00
parent 79a261e868
commit a3f46a40e9
26 changed files with 2093 additions and 378 deletions
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105
src/Mod/Path/App/FeaturePathShape.cpp
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@@ -19,7 +19,9 @@
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
/*
* Copyright (c) 2017 Zheng, Lei <realthunder.dev@gmail.com>
*/
#include "PreCompiled.h"
@@ -32,20 +34,17 @@
#include <App/DocumentObjectPy.h>
#include <Base/Placement.h>
#include <Mod/Part/App/TopoShape.h>
#include <Mod/Part/App/PartFeature.h>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopExp_Explorer.hxx>
#include <gp_Lin.hxx>
#include <BRep_Tool.hxx>
#include <BRepAdaptor_CompCurve.hxx>
#include <BRepAdaptor_HCompCurve.hxx>
#include <Approx_Curve3d.hxx>
#include <BRepAdaptor_HCurve.hxx>
#include <Standard_Failure.hxx>
#include <Standard_Version.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include "FeatureArea.h"
using namespace Path;
@@ -54,79 +53,39 @@ PROPERTY_SOURCE(Path::FeatureShape, Path::Feature)
FeatureShape::FeatureShape()
{
ADD_PROPERTY_TYPE(Shape,(TopoDS_Shape()),"Path",App::Prop_None,"The shape data of this feature");
ADD_PROPERTY(Sources,(0));
ADD_PROPERTY_TYPE(StartPoint,(Base::Vector3d()),"Path",App::Prop_None,"Path start position");
PARAM_PROP_ADD("Path",AREA_PARAMS_PATH);
}
FeatureShape::~FeatureShape()
{
}
short FeatureShape::mustExecute(void) const
{
return Path::Feature::mustExecute();
}
App::DocumentObjectExecReturn *FeatureShape::execute(void)
{
TopoDS_Shape shape = Shape.getValue();
if (!shape.IsNull()) {
if (shape.ShapeType() == TopAbs_WIRE) {
Path::Toolpath result;
bool first = true;
Base::Placement last;
TopExp_Explorer ExpEdges (shape,TopAbs_EDGE);
while (ExpEdges.More()) {
const TopoDS_Edge& edge = TopoDS::Edge(ExpEdges.Current());
TopExp_Explorer ExpVerts(edge,TopAbs_VERTEX);
bool vfirst = true;
while (ExpVerts.More()) {
const TopoDS_Vertex& vert = TopoDS::Vertex(ExpVerts.Current());
gp_Pnt pnt = BRep_Tool::Pnt(vert);
Base::Placement tpl;
tpl.setPosition(Base::Vector3d(pnt.X(),pnt.Y(),pnt.Z()));
if (first) {
// add first point as a G0 move
Path::Command cmd;
std::ostringstream ctxt;
ctxt << "G0 X" << tpl.getPosition().x << " Y" << tpl.getPosition().y << " Z" << tpl.getPosition().z;
cmd.setFromGCode(ctxt.str());
result.addCommand(cmd);
first = false;
vfirst = false;
} else {
if (vfirst)
vfirst = false;
else {
Path::Command cmd;
cmd.setFromPlacement(tpl);
// write arc data if needed
BRepAdaptor_Curve adapt(edge);
if (adapt.GetType() == GeomAbs_Circle) {
gp_Circ circ = adapt.Circle();
gp_Pnt c = circ.Location();
bool clockwise = false;
gp_Dir n = circ.Axis().Direction();
if (n.Z() < 0)
clockwise = true;
Base::Vector3d center = Base::Vector3d(c.X(),c.Y(),c.Z());
// center coords must be relative to last point
center -= last.getPosition();
cmd.setCenter(center,clockwise);
}
result.addCommand(cmd);
}
}
ExpVerts.Next();
last = tpl;
}
ExpEdges.Next();
}
Path.setValue(result);
}
Toolpath path;
std::vector<App::DocumentObject*> links = Sources.getValues();
if (links.empty()) {
Path.setValue(path);
return new App::DocumentObjectExecReturn("No shapes linked");
}
const Base::Vector3d &v = StartPoint.getValue();
gp_Pnt pstart(v.x,v.y,v.z);
std::list<TopoDS_Shape> shapes;
for (std::vector<App::DocumentObject*>::iterator it = links.begin(); it != links.end(); ++it) {
if (!(*it && (*it)->isDerivedFrom(Part::Feature::getClassTypeId())))
continue;
const TopoDS_Shape &shape = static_cast<Part::Feature*>(*it)->Shape.getShape().getShape();
if (shape.IsNull())
continue;
shapes.push_back(shape);
}
Area::toPath(path,shapes,&pstart,PARAM_PROP_ARGS(AREA_PARAMS_PATH));
Path.setValue(path);
return App::DocumentObject::StdReturn;
}