Arch: Added .ifcjson export type

src/Mod/Arch/Init.py

@@ -22,6 +22,7 @@
 # add import/export types
 FreeCAD.addImportType("Industry Foundation Classes (*.ifc)","importIFC")
 FreeCAD.addExportType("Industry Foundation Classes (*.ifc)","exportIFC")
+FreeCAD.addExportType("Industry Foundation Classes - IFCJSON (*.ifcJSON)","exportIFC")
 FreeCAD.addImportType("Wavefront OBJ - Arch module (*.obj)","importOBJ")
 FreeCAD.addExportType("Wavefront OBJ - Arch module (*.obj)","importOBJ")
 FreeCAD.addExportType("WebGL file (*.html)","importWebGL")

src/Mod/Arch/exportIFC.py

@@ -195,6 +195,16 @@ def export(exportList, filename, colors=None, preferences=None):
              "Visit https://wiki.freecadweb.org/IfcOpenShell "
              "to learn about installing it.")
         return
+    if filename.lower().endswith("json"):
+        import json
+        try:
+            from ifcjson import ifc2json5a
+        except:
+            try:
+                import ifc2json5a
+            except:
+                _err("Error: Unable to locate ifc2json5a module. Aborting.")
+                return
 
     starttime = time.time()
 
@@ -1534,7 +1544,10 @@ def export(exportList, filename, colors=None, preferences=None):
 
     filename = decode(filename)
 
-    ifcfile.write(filename)
+    if filename.lower().endswith("json"):
+        writeJson(filename,ifcfile)
+    else:
+        ifcfile.write(filename)
 
     if preferences['STORE_UID']:
         # some properties might have been changed
@@ -1542,7 +1555,7 @@ def export(exportList, filename, colors=None, preferences=None):
 
     os.remove(templatefile)
 
-    if preferences['DEBUG'] and ifcbin.compress:
+    if preferences['DEBUG'] and ifcbin.compress and (not filename.lower().endswith("json")):
         f = pyopen(filename,"r")
         s = len(f.read().split("\n"))
         f.close()
@@ -1637,7 +1650,7 @@ def getIfcTypeFromObj(obj):
 
     if not "::" in ifctype:
         ifctype = "Ifc" + ifctype
-    elif ifctype == "App::DocumentObjctGroup":
+    elif ifctype == "IfcApp::DocumentObjctGroup":
         ifctype = "IfcGroup"
     else:
         # it makes no sense to return IfcPart::Cylinder for a Part::Cylinder
@@ -2364,6 +2377,7 @@ def getText(field,obj):
         result = result.encode("utf8")
     return result
 
+
 def getAxisContext(ifcfile):
 
     """gets or creates an axis context"""
@@ -2379,6 +2393,7 @@ def getAxisContext(ifcfile):
     nctx = ifcfile.createIfcGeometricRepresentationSubContext('Axis','Model',None,None,None,None,ctx,None,"MODEL_VIEW",None);
     return nctx
 
+
 def createAxis(ifcfile,obj,preferences):
 
     """Creates an axis for a given wall, if applicable"""
@@ -2391,3 +2406,25 @@ def createAxis(ifcfile,obj,preferences):
                 axis = ifcfile.createIfcShapeRepresentation(ctx,'Axis','Curve2D',[curve])
                 return axis
     return None
+
+
+def writeJson(filename,ifcfile):
+
+    """writes an .ifcjson file"""
+
+    import json
+    try:
+        from ifcjson import ifc2json5a
+    except:
+        try:
+            import ifc2json5a
+        except:
+            print("Error: Unable to locate ifc2json5a module. Aborting.")
+            return
+    print("Converting IFC to JSON...")
+    jsonfile = ifc2json5a.IFC2JSON5a(ifcfile).spf2Json()
+    f = pyopen(filename,'w')
+    s = json.dumps(jsonfile,indent=4)
+    #print("json:",s)
+    f.write(s)
+    f.close()