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Path.Area: fix work plane direction

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Zheng, Lei
2017-05-11 15:34:39 +08:00
committed by wmayer
parent 6f3104c6e3
commit 16bf2eb737
1 changed files with 22 additions and 8 deletions
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30
src/Mod/Path/App/Area.cpp
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@@ -913,25 +913,37 @@ struct FindPlane {
if (!finder.Found())
return;
gp_Ax3 pos = GeomAdaptor_Surface(finder.Surface()).Plane().Position();
// TODO: It seemed that FindSurface disregard shape's
// transformation SOMETIME, so we have to transformed the found
// plane manually. Need to figure out WHY!
pos.Transform(shape.Location().Transformation());
gp_Pln pln = GeomAdaptor_Surface(finder.Surface()).Plane();
pln.Transform(shape.Location().Transformation());
gp_Ax3 pos = pln.Position();
// We only use right hand coordinate, hence gp_Ax2 instead of gp_Ax3
// This means that no matter what the work plane face oriented, we
// will treat it as face upward in a right hand coordinate system.
if(!pos.Direct())
if(!pos.Direct()) {
AREA_WARN("left hand coordinate");
pos = gp_Ax3(pos.Ax2());
}
gp_Dir dir(pos.Direction());
// To make things more 'normalized', we force the plane to face positive
// axis direction if it parallels to either X, Y or Z plane.
bool x0 = fabs(dir.X())<Precision::Confusion();
bool y0 = fabs(dir.Y())<Precision::Confusion();
bool z0 = fabs(dir.Z())<Precision::Confusion();
if(x0 && y0)
dir.SetZ(fabs(dir.Z()));
else if(x0 && z0)
dir.SetY(fabs(dir.Y()));
else if(y0 && z0)
dir.SetX(fabs(dir.X()));
pos.SetDirection(dir);
trsf.SetTransformation(pos);
if(fabs(dir.X())<Precision::Confusion() &&
fabs(dir.Y())<Precision::Confusion())
{
if(x0 && y0) {
TopExp_Explorer it(shape,TopAbs_VERTEX);
const auto &pt = BRep_Tool::Pnt(TopoDS::Vertex(it.Current()));
if(!myPlaneShape.IsNull() && myZ > pt.Z())
@@ -941,6 +953,8 @@ struct FindPlane {
return;
myPlaneShape = shape;
myTrsf = trsf;
AREA_TRACE("plane pos " << AREA_XYZ(pos.Location()) <<
", " << AREA_XYZ(pos.Direction()));
}
};