Arch: decompose multifuse objects when exporting to IFC
This commit is contained in:
Yorik van Havre
parent
4efd3e894a
commit
b334197116
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@ -968,7 +968,7 @@ def getExtrusionData(shape):
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return None
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if not shape.Solids:
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return None
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if len(shape.Faces) < 5:
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if len(shape.Faces) < 3:
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return None
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# build faces list with normals
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faces = []
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@ -405,6 +405,37 @@ class Component:
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if obj.Base.LengthForward.Value:
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extrusion = extrusion.multiply(obj.Base.LengthForward.Value)
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return (base,extrusion,placement)
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elif obj.Base.isDerivedFrom("Part::MultiFuse"):
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rshapes = []
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revs = []
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rpls = []
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for sub in obj.Base.Shapes:
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if sub.isDerivedFrom("Part::Extrusion"):
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if sub.Base:
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base,placement = self.rebase(sub.Base.Shape)
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extrusion = FreeCAD.Vector(sub.Dir)
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if extrusion.Length == 0:
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extrusion = FreeCAD.Vector(0,0,1)
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else:
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extrusion = placement.inverse().Rotation.multVec(extrusion)
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if hasattr(sub,"LengthForward"):
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if sub.LengthForward.Value:
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extrusion = extrusion.multiply(sub.LengthForward.Value)
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placement = obj.Placement.multiply(placement)
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rshapes.append(base)
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revs.append(extrusion)
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rpls.append(placement)
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else:
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exdata = ArchCommands.getExtrusionData(sub.Shape)
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if exdata:
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base,placement = self.rebase(exdata[0])
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extrusion = placement.inverse().Rotation.multVec(exdata[1])
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placement = obj.Placement.multiply(placement)
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rshapes.append(base)
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revs.append(extrusion)
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rpls.append(placement)
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if rshapes and revs and rpls:
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return (rshapes,revs,rpls)
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return None
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def rebase(self,shape):
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@ -461,7 +461,9 @@ class _Structure(ArchComponent.Component):
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import Part,DraftGeomUtils
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data = ArchComponent.Component.getExtrusionData(self,obj)
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if data:
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return data
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if not isinstance(data[0],list):
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# multifuses not considered here
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return data
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length = obj.Length.Value
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width = obj.Width.Value
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height = obj.Height.Value
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@ -502,7 +502,9 @@ class _Wall(ArchComponent.Component):
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import Part,DraftGeomUtils
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data = ArchComponent.Component.getExtrusionData(self,obj)
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if data:
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return data
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if not isinstance(data[0],list):
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# multifuses not considered here
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return data
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length = obj.Length.Value
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width = obj.Width.Value
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height = obj.Height.Value
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@ -1463,6 +1463,53 @@ def createCurve(ifcfile,wire):
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return pol
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def getProfile(ifcfile,p):
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"""returns an IFC profile definition from a shape"""
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import Part,DraftGeomUtils
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profile = None
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if len(p.Edges) == 1:
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pxvc = ifcfile.createIfcDirection((1.0,0.0))
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povc = ifcfile.createIfcCartesianPoint((0.0,0.0))
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pt = ifcfile.createIfcAxis2Placement2D(povc,pxvc)
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if isinstance(p.Edges[0].Curve,Part.Circle):
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# extruded circle
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profile = ifcfile.createIfcCircleProfileDef("AREA",None,pt,p.Edges[0].Curve.Radius)
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elif isinstance(p.Edges[0].Curve,Part.Ellipse):
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# extruded ellipse
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profile = ifcfile.createIfcEllipseProfileDef("AREA",None,pt,p.Edges[0].Curve.MajorRadius,p.Edges[0].Curve.MinorRadius)
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elif (len(p.Faces) == 1) and (len(p.Wires) > 1):
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# face with holes
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f = p.Faces[0]
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if DraftGeomUtils.hasCurves(f.OuterWire):
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outerwire = createCurve(ifcfile,f.OuterWire)
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else:
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w = Part.Wire(Part.__sortEdges__(f.OuterWire.Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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outerwire = ifcfile.createIfcPolyline(pts)
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innerwires = []
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for w in f.Wires:
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if w.hashCode() != f.OuterWire.hashCode():
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if DraftGeomUtils.hasCurves(w):
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innerwires.append(createCurve(ifcfile,w))
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else:
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w = Part.Wire(Part.__sortEdges__(w.Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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innerwires.append(ifcfile.createIfcPolyline(pts))
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profile = ifcfile.createIfcArbitraryProfileDefWithVoids("AREA",None,outerwire,innerwires)
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else:
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if DraftGeomUtils.hasCurves(p):
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# extruded composite curve
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pol = createCurve(ifcfile,p)
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else:
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# extruded polyline
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w = Part.Wire(Part.__sortEdges__(p.Wires[0].Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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pol = ifcfile.createIfcPolyline(pts)
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profile = ifcfile.createIfcArbitraryClosedProfileDef("AREA",None,pol)
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return profile
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def getRepresentation(ifcfile,context,obj,forcebrep=False,subtraction=False,tessellation=1):
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"""returns an IfcShapeRepresentation object or None"""
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@ -1497,81 +1544,55 @@ def getRepresentation(ifcfile,context,obj,forcebrep=False,subtraction=False,tess
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if (not shapes) and (not forcebrep):
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profile = None
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ev = FreeCAD.Vector()
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if hasattr(obj,"Proxy"):
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if hasattr(obj.Proxy,"getExtrusionData"):
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extdata = obj.Proxy.getExtrusionData(obj)
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if extdata:
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# convert to meters
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p = extdata[0]
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p.scale(0.001)
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if not isinstance(p,list):
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p = [p]
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ev = extdata[1]
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ev.multiply(0.001)
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if not isinstance(ev,list):
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ev = [ev]
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pl = extdata[2]
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pl.Base = pl.Base.multiply(0.001)
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pstr = str([v.Point for v in extdata[0].Vertexes])
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if pstr in profiledefs:
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profile = profiledefs[pstr]
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shapetype = "reusing profile"
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else:
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if len(p.Edges) == 1:
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pxvc = ifcfile.createIfcDirection((1.0,0.0))
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povc = ifcfile.createIfcCartesianPoint((0.0,0.0))
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pt = ifcfile.createIfcAxis2Placement2D(povc,pxvc)
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if isinstance(p.Edges[0].Curve,Part.Circle):
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# extruded circle
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profile = ifcfile.createIfcCircleProfileDef("AREA",None,pt, p.Edges[0].Curve.Radius)
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elif isinstance(p.Edges[0].Curve,Part.Ellipse):
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# extruded ellipse
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profile = ifcfile.createIfcEllipseProfileDef("AREA",None,pt, p.Edges[0].Curve.MajorRadius, p.Edges[0].Curve.MinorRadius)
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elif (len(p.Faces) == 1) and (len(p.Wires) > 1):
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# face with holes
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f = p.Faces[0]
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if DraftGeomUtils.hasCurves(f.OuterWire):
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outerwire = createCurve(ifcfile,f.OuterWire)
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else:
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w = Part.Wire(Part.__sortEdges__(f.OuterWire.Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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outerwire = ifcfile.createIfcPolyline(pts)
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innerwires = []
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for w in f.Wires:
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if w.hashCode() != f.OuterWire.hashCode():
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if DraftGeomUtils.hasCurves(w):
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innerwires.append(createCurve(ifcfile,w))
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else:
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w = Part.Wire(Part.__sortEdges__(w.Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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innerwires.append(ifcfile.createIfcPolyline(pts))
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profile = ifcfile.createIfcArbitraryProfileDefWithVoids("AREA",None,outerwire,innerwires)
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if not isinstance(pl,list):
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pl = [pl]
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if (len(p) != len(ev)) or (len(p) != len(pl)):
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raise ValueError("importIFC: Extrusion data length mismatch: "+obj.Label)
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for i in range(len(p)):
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pi = p[i]
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pi.scale(0.001)
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evi = ev[i]
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evi.multiply(0.001)
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pli = pl[i]
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pli.Base = pli.Base.multiply(0.001)
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pstr = str([v.Point for v in p[i].Vertexes])
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if pstr in profiledefs:
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profile = profiledefs[pstr]
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shapetype = "reusing profile"
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else:
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if DraftGeomUtils.hasCurves(p):
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# extruded composite curve
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pol = createCurve(ifcfile,p)
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else:
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# extruded polyline
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w = Part.Wire(Part.__sortEdges__(p.Wires[0].Edges))
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pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
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pol = ifcfile.createIfcPolyline(pts)
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profile = ifcfile.createIfcArbitraryClosedProfileDef("AREA",None,pol)
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if profile:
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profiledefs[pstr] = profile
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if profile and not(DraftVecUtils.isNull(ev)):
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#ev = pl.Rotation.inverted().multVec(ev)
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#print "ev:",ev
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if not tostore:
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# add the object placement to the profile placement. Otherwise it'll be done later at map insert
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pl2 = FreeCAD.Placement(obj.Placement)
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pl2.Base = pl2.Base.multiply(0.001)
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pl = pl2.multiply(pl)
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xvc = ifcfile.createIfcDirection(tuple(pl.Rotation.multVec(FreeCAD.Vector(1,0,0))))
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zvc = ifcfile.createIfcDirection(tuple(pl.Rotation.multVec(FreeCAD.Vector(0,0,1))))
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ovc = ifcfile.createIfcCartesianPoint(tuple(pl.Base))
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lpl = ifcfile.createIfcAxis2Placement3D(ovc,zvc,xvc)
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edir = ifcfile.createIfcDirection(tuple(FreeCAD.Vector(ev).normalize()))
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shape = ifcfile.createIfcExtrudedAreaSolid(profile,lpl,edir,ev.Length)
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shapes.append(shape)
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solidType = "SweptSolid"
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shapetype = "extrusion"
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profile = getProfile(ifcfile,pi)
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if profile:
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profiledefs[pstr] = profile
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if profile and not(DraftVecUtils.isNull(evi)):
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#ev = pl.Rotation.inverted().multVec(evi)
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#print "evi:",evi
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if not tostore:
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# add the object placement to the profile placement. Otherwise it'll be done later at map insert
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pl2 = FreeCAD.Placement(obj.Placement)
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pl2.Base = pl2.Base.multiply(0.001)
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pli = pl2.multiply(pli)
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xvc = ifcfile.createIfcDirection(tuple(pli.Rotation.multVec(FreeCAD.Vector(1,0,0))))
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zvc = ifcfile.createIfcDirection(tuple(pli.Rotation.multVec(FreeCAD.Vector(0,0,1))))
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ovc = ifcfile.createIfcCartesianPoint(tuple(pli.Base))
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lpl = ifcfile.createIfcAxis2Placement3D(ovc,zvc,xvc)
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edir = ifcfile.createIfcDirection(tuple(FreeCAD.Vector(evi).normalize()))
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shape = ifcfile.createIfcExtrudedAreaSolid(profile,lpl,edir,evi.Length)
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shapes.append(shape)
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solidType = "SweptSolid"
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shapetype = "extrusion"
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if not shapes:
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# brep representation
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@ -1833,6 +1854,7 @@ def setRepresentation(representation,scaling=1000):
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result = preresult
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return result
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def getRotation(entity):
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"returns a FreeCAD rotation from an IfcProduct with a IfcMappedItem representation"
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try:
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