Hi Thomas OK - noted. In any case, there is where my focus has been.
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Patrick On 13 May 2010 15:48, Thomas Paviot <tpav...@gmail.com> wrote: > Patrick, > > You should *not* refer to the OpenCascade API doxygen documentation. There > are many (small) differences between the C++ API and the python wrapper that > could confuse you in using pythonOCC. > > The *only* official documentation for the pythonOCC API can be found here: > http://api.pythonocc.org > > Regards, > > Thomas > > > 2010/5/13 Patrick Janssen <patr...@janssen.name> > >> Hi Jelle, >> >> Thanks - >> So the make_edge function wraps BRepBuilderAPI_MakeEdge >> And looking at the source of make_edge, I see that you need to use the >> Edge() method to get the edge >> So to do it the longer way round again: >> >> def line3(): >> >> ''' Test a line segment''' >> display, start_display, add_menu, add_function_to_menu = >> init_display() >> >> from OCC.gp import gp_Pnt >> from OCC.BRepBuilderAPI import BRepBuilderAPI_MakeEdge >> p1 = gp_Pnt(0,0,0) >> p2 = gp_Pnt(9,9,0) >> my_line = BRepBuilderAPI_MakeEdge(p1, p2).Edge() >> >> display.DisplayShape(my_line) >> >> display.View_Iso() >> display.FitAll() >> start_display() >> >> So there is no need to call he Build() method? >> That method confused me as well - what does it do? (see my first example) >> >> :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: >> Patrick >> >> >> >> On 13 May 2010 14:54, Jelle Feringa <jelleferi...@gmail.com> wrote: >> >>> Hi Patrick, >>> >>> The API can be a bit daunting indeed. >>> However, most topology constructors can accept its arguments in quite a >>> few ways. >>> For example; make_edge accepts a (gp_Pnt, gp_Lin), but (gp_Pnt, gp_Pnt) >>> is fine too. >>> ( so can be done in 5 lines too ;') >>> >>> from OCC.Display.SimpleGui import * >>> display, start_display, add_menu, add_function_to_menu = init_display() >>> from OCC.Utils.Construct import make_edge >>> display.DisplayShape(make_edge(gp_Pnt(), gp_Pnt(1,1,0))) >>> start_display() >>> >>> -jelle >>> >>> See the doxygen documentation of OCC: >>> >>> Standard_EXPORT BRepBuilderAPI_MakeEdge () Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const TopoDS_Vertex &V1, const TopoDS_Vertex >>> &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Pnt &P1, const >>> gp_Pnt &P2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Lin >>> &L)Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Lin &L, const Standard_Real p1, const >>> Standard_Real p2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Lin >>> &L, const gp_Pnt &P1, const gp_Pnt &P2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Lin &L, const TopoDS_Vertex &V1, const >>> TopoDS_Vertex &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> gp_Circ &L) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Circ &L, >>> const Standard_Real p1, const Standard_Real p2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Circ &L, const gp_Pnt &P1, const >>> gp_Pnt &P2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Circ &L, >>> const TopoDS_Vertex &V1, const TopoDS_Vertex &V2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Elips &L) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Elips &L, const Standard_Real p1, >>> const Standard_Real p2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> gp_Elips &L, const gp_Pnt &P1, const gp_Pnt &P2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Elips &L, const TopoDS_Vertex &V1, >>> const TopoDS_Vertex &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> gp_Hypr &L) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Hypr &L, >>> const Standard_Real p1, const Standard_Real p2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Hypr &L, const gp_Pnt &P1, const >>> gp_Pnt &P2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const gp_Hypr &L, >>> const TopoDS_Vertex &V1, const TopoDS_Vertex &V2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Parab &L) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Parab &L, const Standard_Real p1, >>> const Standard_Real p2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> gp_Parab &L, const gp_Pnt &P1, const gp_Pnt &P2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const gp_Parab &L, const TopoDS_Vertex &V1, >>> const TopoDS_Vertex &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> Handle(Geom_Curve)&L) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> Handle(Geom_Curve)&L, const Standard_Real p1, const Standard_Real p2) >>> Standard_EXPORT BRepBuilderAPI_MakeEdge (const Handle(Geom_Curve)&L, >>> const gp_Pnt &P1, const gp_Pnt &P2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const Handle(Geom_Curve)&L, const TopoDS_Vertex >>> &V1, const TopoDS_Vertex &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge >>> (const >>> Handle(Geom_Curve)&L, const gp_Pnt &P1, const gp_Pnt &P2, const >>> Standard_Real p1, const Standard_Real p2) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const Handle(Geom_Curve)&L, const TopoDS_Vertex >>> &V1, const TopoDS_Vertex &V2, const Standard_Real p1, const >>> Standard_Real p2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> Handle(Geom2d_Curve)&L, const Handle(Geom_Surface)&S) Standard_EXPORT >>> BRepBuilderAPI_MakeEdge (const Handle(Geom2d_Curve)&L, const >>> Handle(Geom_Surface)&S, const Standard_Real p1, const Standard_Real p2) >>> Standard_EXPORT BRepBuilderAPI_MakeEdge (const Handle(Geom2d_Curve)&L, >>> const Handle(Geom_Surface)&S, const gp_Pnt &P1, const gp_Pnt &P2) >>> Standard_EXPORT BRepBuilderAPI_MakeEdge (const Handle(Geom2d_Curve)&L, >>> const Handle(Geom_Surface)&S, const TopoDS_Vertex &V1, const >>> TopoDS_Vertex &V2) Standard_EXPORT BRepBuilderAPI_MakeEdge (const >>> Handle(Geom2d_Curve)&L, const Handle(Geom_Surface)&S, const gp_Pnt &P1, >>> const gp_Pnt &P2, const Standard_Real p1, const Standard_Real p2) >>> Standard_EXPORT BRepBuilderAPI_MakeEdge (const Handle(Geom2d_Curve)&L, >>> const Handle(Geom_Surface)&S, const TopoDS_Vertex &V1, const >>> TopoDS_Vertex &V2, const Standard_Real p1, const Standard_Real p2) >>> >>> >>> >>> On May 13, 2010, at 8:44 AM, Patrick Janssen wrote: >>> >>> Hi Thomas, >>> >>> Thanks for the quick reply - and thanks for the hard work on wrapping occ >>> - I think it is going to be really useful for my work. >>> >>> By simple, I was thinking of higher level APIs - like you get with boxes >>> and cylinders (BRepPrimAPI_MakeBox, BRepPrimAPI_MakeCylinder). I have come >>> across GC_MakeSegment, but am not sure how to use it - I am still struggling >>> with the fundamental concepts, especially working with these handles. I was >>> trying this, but it gives an error: >>> >>> def line2(): >>> ''' Test a line segment''' >>> display, start_display, add_menu, add_function_to_menu = >>> init_display() >>> >>> from OCC.gp import gp_Pnt >>> from OCC.GC import GC_MakeSegment >>> from OCC.BRepBuilderAPI import BRepBuilderAPI_MakeEdge >>> p1 = gp_Pnt(0,0,0) >>> p2 = gp_Pnt(9,9,0) >>> my_line = GC_MakeSegment(p1, p2).Value() >>> my_line = BRepBuilderAPI_MakeEdge(my_line) >>> my_line.Build() >>> my_line = my_line.Shape() >>> display.DisplayShape(my_line) >>> >>> display.View_Iso() >>> display.FitAll() >>> start_display() >>> >>> >>> :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: >>> Patrick >>> >>> On 13 May 2010 14:11, Thomas Paviot <tpav...@gmail.com> wrote: >>> >>>> 2010/5/13 Patrick Janssen <patr...@janssen.name> >>>> >>>> I am just getting started, and have been looking at some of the exampls >>>>> etc... So to draw a line, you would do this: >>>>> >>>>> def test5(): >>>>> ''' Test creating a line segment'' >>>>> display, start_display, add_menu, add_function_to_menu = >>>>> init_display() >>>>> >>>>> from OCC.gp import gp_Pnt, gp_Dir >>>>> from OCC.Geom import Geom_Line >>>>> from OCC.BRepBuilderAPI import BRepBuilderAPI_MakeEdge >>>>> p1 = gp_Pnt(0,0,0) >>>>> line_dir = gp_Dir(1,1,0) >>>>> my_line = Geom_Line(p1, line_dir).Lin() >>>>> my_line = BRepBuilderAPI_MakeEdge(my_line) >>>>> my_line.Build() >>>>> my_line = my_line.Shape() >>>>> display.DisplayShape(my_line) >>>>> >>>>> display.View_Iso() >>>>> display.FitAll() >>>>> start_display() >>>>> >>>>> >>>>> Is there a simpler way? >>>>> :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: >>>>> Patrick >>>>> >>>>> >>>> Hi Patrick, >>>> >>>> In only 14 lines of python code, you manage to display a line in a 3D >>>> window. I think it's not bad! What do you mean exactly with 'simpler'? Do >>>> you mean 'less lines'? Whatever the alternative solution could be, you will >>>> always have to : >>>> * import python modules/packages, >>>> * define two points (or a point and a direction), >>>> * create the line from these two points, >>>> * send the line to the renderer. >>>> >>>> You can use for instance high level wrappers to generate the edges from >>>> the line: >>>> >>>> from OCC.Display.SimpleGui import * >>>> display, start_display, add_menu, add_function_to_menu = init_display() >>>> from OCC.gp import gp_Pnt, gp_Dir >>>> from OCC.Geom import Geom_Line >>>> from OCC.Utils.Construct import make_edge >>>> >>>> p1 = gp_Pnt(0,0,0) >>>> line_dir = gp_Dir(1,1,0) >>>> my_line = Geom_Line(p1, line_dir).Lin() >>>> >>>> display.DisplayShape(make_edge(my_line)) >>>> >>>> start_display() >>>> >>>> This sample is 11 lines, I would not say it's simpler but smaller. >>>> >>>> Thomas >>>> >>>> _______________________________________________ >>>> Pythonocc-users mailing list >>>> Pythonocc-users@gna.org >>>> https://mail.gna.org/listinfo/pythonocc-users >>>> >>>> >>> _______________________________________________ >>> Pythonocc-users mailing list >>> Pythonocc-users@gna.org >>> https://mail.gna.org/listinfo/pythonocc-users >>> >>> >>> >> >> _______________________________________________ >> Pythonocc-users mailing list >> Pythonocc-users@gna.org >> https://mail.gna.org/listinfo/pythonocc-users >> >> > > _______________________________________________ > Pythonocc-users mailing list > Pythonocc-users@gna.org > https://mail.gna.org/listinfo/pythonocc-users > >
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