Highly experimental script to convert from IFC task trees into a Gantt chart JSON for jsgantt-improved

src/ifcblenderexport/ifc_to_gantt.py

@@ -0,0 +1,33 @@
+import json
+import ifcopenshell
+
+class IfcToGantt:
+    def __init__(self):
+        self.json = []
+
+    def execute(self):
+        self.file = ifcopenshell.open("p6.ifc")
+        self.root = self.file.by_type("IfcTask")[0]
+        task = self.root
+        for task in self.file.by_type("IfcTask"):
+            self.json.append({
+                "pID": task.id(),
+                "pName": task.Name,
+                "pStart": task.TaskTime.ScheduleStart if task.TaskTime else "",
+                "pEnd": task.TaskTime.ScheduleFinish if task.TaskTime else "",
+                "pPlanStart": task.TaskTime.ScheduleStart if task.TaskTime else "",
+                "pPlanEnd": task.TaskTime.ScheduleFinish if task.TaskTime else "",
+                "pClass": "ggroupblack",
+                "pMile": 1 if task.IsMilestone else 0,
+                "pComp": 0,
+                "pGroup": 1,
+                "pParent": task.Nests[0].RelatingObject.id() if task.Nests else 0,
+                "pOpen": 1,
+                "pCost":  1
+            })
+        with open("p6.json", "w") as f:
+            json.dump(self.json, f)
+
+ifc_to_gantt = IfcToGantt()
+ifc_to_gantt.execute()
+