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Allow creating a datum plane tangential to a cylinder and parallel to another plane

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This commit is contained in:
jrheinlaender
2013-06-19 12:23:18 +02:00
committed by Stefan Tröger
parent 2acb7a7950
commit be85d85800
4 changed files with 79 additions and 28 deletions
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77
src/Mod/PartDesign/App/DatumPlane.cpp
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@@ -34,8 +34,10 @@
# include <gp_GTrsf.hxx>
# include <gp_Lin.hxx>
# include <gp_Pln.hxx>
# include <gp_Cylinder.hxx>
# include <Geom_Line.hxx>
# include <Geom_Plane.hxx>
# include <Geom_CylindricalSurface.hxx>
# include <Geom2d_Line.hxx>
# include <Handle_Geom_Curve.hxx>
# include <Handle_Geom_Surface.hxx>
@@ -74,6 +76,7 @@ using namespace PartDesign;
// Note: We don't distinguish between e.g. datum lines and edges here
#define PLANE QObject::tr("DPLANE")
#define CYLINDER QObject::tr("DCYLINDER")
#define LINE QObject::tr("DLINE")
#define POINT QObject::tr("DPOINT")
#define ANGLE QObject::tr("Angle")
@@ -132,6 +135,15 @@ void Plane::initHints()
key.insert(LINE); key.insert(PLANE); key.insert(ANGLE);
hints[key] = DONE; // {LINE, PLANE, ANGLE} -> DONE. Plane through line with angle to other plane
key.clear(); value.clear();
key.insert(CYLINDER);
value.insert(PLANE);
hints[key] = value; // CYLINDER -> PLANE
key.clear(); value.clear();
key.insert(CYLINDER); key.insert(PLANE);
hints[key] = DONE; // {CYLINDER, PLANE} -> DONE. Plane tangential to cylinder and normal to other plane
key.clear(); value.clear();
value.insert(POINT); value.insert(LINE); value.insert(PLANE); value.insert(ANGLE);
hints[key] = value;
@@ -188,6 +200,7 @@ void Plane::onChanged(const App::Property *prop)
Base::Vector3d* p3 = NULL;
Base::Vector3d* normal = NULL;
gp_Lin* line = NULL;
gp_Cylinder* cyl = NULL;
for (int i = 0; i < refs.size(); i++) {
if (refs[i]->getTypeId().isDerivedFrom(PartDesign::Point::getClassTypeId())) {
@@ -246,30 +259,33 @@ void Plane::onChanged(const App::Property *prop)
} else if (subshape.ShapeType() == TopAbs_FACE) {
TopoDS_Face f = TopoDS::Face(subshape);
BRepAdaptor_Surface adapt(f);
if (adapt.GetType() != GeomAbs_Plane)
return; // Non-planar face
if (adapt.GetType() == GeomAbs_Plane) {
// Ensure that the front and back of the plane corresponds with the face's idea of front and back
bool reverse = (f.Orientation() == TopAbs_REVERSED);
gp_Pln plane = adapt.Plane();
if (!plane.Direct()) {
// toggle if plane has a left-handed coordinate system
plane.UReverse();
reverse = !reverse;
}
gp_Dir d = adapt.Plane().Axis().Direction();
if (reverse) d.Reverse();
// Ensure that the front and back of the plane corresponds with the face's idea of front and back
bool reverse = (f.Orientation() == TopAbs_REVERSED);
gp_Pln plane = adapt.Plane();
if (!plane.Direct()) {
// toggle if plane has a left-handed coordinate system
plane.UReverse();
reverse = !reverse;
// Ensure that the position of the placement corresponds to what the face would yield in
// Part2DObject::positionBySupport()
Base::Vector3d pos = feature->Placement.getValue().getPosition();
gp_Pnt gp_pos(pos.x,pos.y,pos.z);
Handle (Geom_Plane) gPlane = new Geom_Plane(plane);
GeomAPI_ProjectPointOnSurf projector(gp_pos,gPlane);
gp_Pnt b = projector.NearestPoint();
p1 = new Base::Vector3d(b.X(), b.Y(), b.Z());
normal = new Base::Vector3d(d.X(), d.Y(), d.Z());
} else if (adapt.GetType() == GeomAbs_Cylinder) {
cyl = new gp_Cylinder(adapt.Cylinder());
} else {
return; // invalid surface type
}
gp_Dir d = adapt.Plane().Axis().Direction();
if (reverse) d.Reverse();
// Ensure that the position of the placement corresponds to what the face would yield in
// Part2DObject::positionBySupport()
Base::Vector3d pos = feature->Placement.getValue().getPosition();
gp_Pnt gp_pos(pos.x,pos.y,pos.z);
Handle (Geom_Plane) gPlane = new Geom_Plane(plane);
GeomAPI_ProjectPointOnSurf projector(gp_pos,gPlane);
gp_Pnt b = projector.NearestPoint();
p1 = new Base::Vector3d(b.X(), b.Y(), b.Z());
normal = new Base::Vector3d(d.X(), d.Y(), d.Z());
}
} else {
return; //"PartDesign::Plane: Invalid reference type"
@@ -284,6 +300,22 @@ void Plane::onChanged(const App::Property *prop)
gp_Dir dir = line->Direction();
Base::Rotation rot(Base::Vector3d(dir.X(), dir.Y(), dir.Z()), Angle.getValue() / 180.0 * M_PI);
rot.multVec(*normal, *normal);
} else if ((cyl != NULL) && (normal != NULL)) {
// Plane tangential to cylinder and parallel to other plane
gp_Dir dir(normal->x, normal->y, normal->z);
Handle_Geom_Curve normalLine = new Geom_Line(cyl->Location(), dir);
Handle_Geom_Surface cylinder = new Geom_CylindricalSurface(*cyl);
// Intersect a line through the base point of the cylinder and normal to the plane with the cylinder itself
GeomAPI_IntCS intersector(normalLine, cylinder);
if (!intersector.IsDone() || (intersector.NbPoints() == 0))
return;
if (intersector.NbPoints() > 1)
Base::Console().Warning("More than one intersection point for datum plane from cylinder and plane");
gp_Pnt inter = intersector.Point(1);
p1 = new Base::Vector3d(inter.X(), inter.Y(), inter.Z());
// TODO: Allow to control which side of the cylinder the plane is create on - there are always two possibilities
} else if ((p1 != NULL) && (normal != NULL)) {
// plane from other plane. Nothing to be done
} else if ((p1 != NULL) && (p2 != NULL) && (p3 != NULL)) {
@@ -315,6 +347,7 @@ void Plane::onChanged(const App::Property *prop)
if (p2 != NULL) delete p2;
if (p3 != NULL) delete p3;
if (line != NULL) delete line;
if (cyl != NULL) delete cyl;
}
Part::Datum::onChanged(prop);