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Arch: Support of circle-based extrusions in IFC export

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This commit is contained in:
Yorik van Havre
2014-04-23 15:51:59 -03:00
parent edbbe07a79
commit fbcfb37b21
3 changed files with 91 additions and 20 deletions
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76
src/Mod/Arch/importIFC.py
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@@ -34,6 +34,7 @@ SCHEMA = "http://www.steptools.com/support/stdev_docs/express/ifc2x3/ifc2x3_tc1.
MAKETEMPFILES = False # if True, shapes are passed from ifcopenshell to freecad through temp files
DEBUG = True # this is only for the python console, this value is overridden when importing through the GUI
SKIP = ["IfcBuildingElementProxy","IfcFlowTerminal","IfcFurnishingElement"] # default. overwritten by the GUI options
TOUCH = True # arch objects based on profiles need to be reexecuted after loading the file (this is temporary)
# end config
if open.__module__ == '__builtin__':
@@ -923,9 +924,9 @@ def export(exportList,filename):
version of IfcOpenShell available from https://github.com/aothms/IfcOpenShell"""
return
import ifcWriter
import Arch,Draft
# creating base IFC project
import Arch,Draft
getConfig()
ifcWriter.PRECISION = Draft.precision()
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
@@ -944,6 +945,13 @@ def export(exportList,filename):
# get all children and reorder list to get buildings and floors processed first
objectslist = Draft.getGroupContents(exportList,walls=True,addgroups=True)
objectslist = Arch.pruneIncluded(objectslist)
# workaround: loaded objects loose their profile info - needs to recompute...
if TOUCH:
for o in objectslist:
if Draft.getType(o) in ["Wall", "Structure"]:
o.Proxy.execute(o)
buildings = []
floors = []
others = []
@@ -971,20 +979,45 @@ def export(exportList,filename):
if DEBUG: print "adding ",obj.Label
# getting geometry
if not forcebrep:
gdata = Arch.getExtrusionData(obj,scaling)
#if DEBUG: print "extrusion data for ",obj.Label," : ",gdata
if not gdata:
fdata = Arch.getBrepFacesData(obj,scaling)
#if DEBUG: print "brep data for ",obj.Label," : ",fdata
if DEBUG: print " Brep"
if not fdata:
if obj.isDerivedFrom("Part::Feature"):
print "IFC export: error retrieving the shape of object ", obj.Name
continue
else:
if DEBUG: print " No geometry"
else:
if DEBUG: print " Brep"
else:
if DEBUG: print " Extrusion"
# compute final placement
basepoint = None
if obj.isDerivedFrom("Part::Feature"):
b1 = None
b2 = None
if hasattr(obj,"Base"):
if obj.Base:
b1 = FreeCAD.Vector(obj.Base.Placement.Base).multiply(scaling)
if hasattr(obj,"Placement"):
b2 = FreeCAD.Vector(obj.Placement.Base).multiply(scaling)
if b2:
if b1:
basepoint = b2.add(b1)
else:
basepoint = b2
elif b1:
basepoint = b1
if basepoint:
basepoint = Arch.getTuples(basepoint)
# writing text log
spacer = ""
for i in range(36-len(obj.Label)):
spacer += " "
@@ -996,7 +1029,8 @@ def export(exportList,filename):
else:
tp = otype
txt.append(obj.Label + spacer + tp)
# writing IFC data
if otype == "Building":
ifc.addBuilding( name=name )
@@ -1009,11 +1043,15 @@ def export(exportList,filename):
if parent:
parent = ifc.findByName("IfcBuildingStorey",str(parent.Label))
if gdata:
ifc.addWall( ifc.addExtrudedPolyline(gdata[0],gdata[1]), storey=parent, name=name, standard=True )
if gdata[0] == "polyline":
ifc.addWall( ifc.addExtrudedPolyline(gdata[1], gdata[2]), storey=parent, name=name, standard=True )
elif gdata[0] == "circle":
ifc.addWall( ifc.addExtrudedCircle(gdata[1], gdata[2], gdata[3]), storey=parent, name=name )
elif fdata:
ifc.addWall( [ifc.addFacetedBrep(f) for f in fdata], storey=parent, name=name )
elif otype == "Structure":
placement = None
if parent:
parent = ifc.findByName("IfcBuildingStorey",str(parent.Label))
role = "IfcBeam"
@@ -1025,13 +1063,24 @@ def export(exportList,filename):
elif obj.Role == "Foundation":
role = "IfcFooting"
if gdata:
#ifc.addStructure( role, ifc.addExtrudedPolyline(gdata[0],gdata[1]), storey=parent, name=name )
if FreeCAD.Vector(gdata[1]).getAngle(FreeCAD.Vector(0,0,1)) < .01:
# Workaround for non-Z extrusions, apparently not supported by ifc++ TODO: fix this
ifc.addStructure( role, ifc.addExtrudedPolyline(gdata[0],gdata[1]), storey=parent, name=name, standard=True )
else:
fdata = Arch.getBrepFacesData(obj,scaling)
ifc.addStructure( role, [ifc.addFacetedBrep(f) for f in fdata], storey=parent, name=name )
if gdata[0] == "polyline":
#ifc.addStructure( role, ifc.addExtrudedPolyline(gdata[0],gdata[1]), storey=parent, name=name )
if FreeCAD.Vector(gdata[2]).getAngle(FreeCAD.Vector(0,0,1)) < .01:
# the placement of polylines is weird... The Z values from the polyline info is not used,
# so we need to give it now as a placement.
if basepoint:
if round(basepoint[2],Draft.precision()) != 0:
placement = ifc.addPlacement(origin=(0.0,0.0,basepoint[2]))
ifc.addStructure( role, ifc.addExtrudedPolyline(gdata[1],gdata[2]), storey=parent, placement=placement, name=name, extrusion=True )
else:
# Workaround for non-Z extrusions, apparently not supported by ifc++ TODO: fix this
print " switching to Brep"
fdata = Arch.getBrepFacesData(obj,scaling)
ifc.addStructure( role, [ifc.addFacetedBrep(f) for f in fdata], storey=parent, name=name )
elif gdata[0] == "circle":
if basepoint:
placement = ifc.addPlacement(origin=basepoint)
ifc.addStructure( role, ifc.addExtrudedCircle(gdata[1], gdata[2], gdata[3]), storey=parent, placement=placement, name=name, extrusion=True )
elif fdata:
ifc.addStructure( role, [ifc.addFacetedBrep(f) for f in fdata], storey=parent, name=name )
@@ -1052,7 +1101,8 @@ def export(exportList,filename):
if obj.Role == "Door":
role = "IfcDoor"
if gdata:
ifc.addWindow( role, obj.Width*scaling, obj.Height*scaling, ifc.addExtrudedPolyline(gdata[0],gdata[1]), host=parent, name=name )
if gdata[0] == "polyline":
ifc.addWindow( role, obj.Width*scaling, obj.Height*scaling, ifc.addExtrudedPolyline(gdata[1], gdata[2]), host=parent, name=name )
elif fdata:
ifc.addWindow( role, obj.Width*scaling, obj.Height*scaling, [ifc.addFacetedBrep(f) for f in fdata], host=parent, name=name )
@@ -1082,6 +1132,8 @@ def export(exportList,filename):
f.write(txtstring)
f.close()
FreeCAD.ActiveDocument.recompute()
def explore(filename=None):
"explore the contents of an ifc file in a Qt dialog"