You can now manually type in start/end dates for construction sequence visualisation instead of clicking the date picker hundreds of times.

src/blenderbim/blenderbim/bim/module/drawing/operator.py

@@ -305,9 +305,7 @@ class CreateDrawing(bpy.types.Operator):
             # Exclude all annotation apart from the active one so we don't cut through them
             exclude += [e for e in f.by_type("IfcAnnotation") if e != self.camera_element]
 
-            iterators.append(
-                ifcopenshell.geom.iterator(geom_settings, f, multiprocessing.cpu_count(), exclude=exclude)
-            )
+            iterators.append(ifcopenshell.geom.iterator(geom_settings, f, multiprocessing.cpu_count(), exclude=exclude))
 
         with open(svg_path, "w") as svg:
             results = ifcopenshell.draw.main(draw_settings, files, iterators=iterators, merge_projection=False)
@@ -397,7 +395,6 @@ class CreateDrawing(bpy.types.Operator):
         numerator, denominator = fraction.split("/")
         self.scale = float(numerator) / float(denominator)
 
-
     def is_landscape(self, render):
         return render.resolution_x > render.resolution_y
 

src/blenderbim/blenderbim/bim/module/sequence/helper.py

@@ -79,17 +79,3 @@ def canonicalise_time(time):
     if not time:
         return "-"
     return time.strftime("%d/%m/%y")
-
-
-def get_scene_prop(prop_path):
-    prop = bpy.context.scene.get(prop_path.split(".")[0])
-    for part in prop_path.split(".")[1:]:
-        if part:
-            prop = prop.get(part)
-    return prop
-
-
-def set_scene_prop(prop_path, value):
-    parent = get_scene_prop(prop_path[: prop_path.rfind(".")])
-    prop = prop_path.split(".")[-1]
-    parent[prop] = value

src/blenderbim/blenderbim/bim/module/sequence/operator.py

@@ -1097,6 +1097,7 @@ class ImportP6(bpy.types.Operator, ImportHelper):
         print("Import finished in {:.2f} seconds".format(time.time() - start))
         return {"FINISHED"}
 
+
 class ImportP6XER(bpy.types.Operator, ImportHelper):
     bl_idname = "import_p6xer.bim"
     bl_label = "Import P6 XER"
@@ -1118,6 +1119,7 @@ class ImportP6XER(bpy.types.Operator, ImportHelper):
         print("Import finished in {:.2f} seconds".format(time.time() - start))
         return {"FINISHED"}
 
+
 class ImportP6XER(bpy.types.Operator, ImportHelper):
     bl_idname = "import_p6xer.bim"
     bl_label = "Import P6 XER"
@@ -2000,17 +2002,17 @@ class BlenderBIM_DatePicker(bpy.types.Operator):
     bl_idname = "bim.datepicker"
     bl_options = {"REGISTER", "UNDO"}
     display_date: bpy.props.StringProperty(name="Display Date")
-    selected_date: bpy.props.StringProperty(name="Selected Date")
     target_prop: bpy.props.StringProperty(name="Target date prop to set")
 
     def execute(self, context):
-        helper.set_scene_prop(self.target_prop, self.selected_date)
+        try:
+            value = parser.parse(context.scene.DatePickerProperties.selected_date, dayfirst=True, fuzzy=True)
+            self.set_scene_prop(self.target_prop, helper.canonicalise_time(value))
+        except:
+            pass
         return {"FINISHED"}
 
     def draw(self, context):
-        self.selected_date = helper.get_scene_prop("DatePickerProperties.selected_date") or helper.canonicalise_time(
-            datetime.now()
-        )
         current_date = parser.parse(context.scene.DatePickerProperties.display_date, dayfirst=True, fuzzy=True)
         current_month = (current_date.year, current_date.month)
         lines = calendar.monthcalendar(*current_month)
@@ -2018,7 +2020,7 @@ class BlenderBIM_DatePicker(bpy.types.Operator):
 
         layout = self.layout
         row = layout.row()
-        row.prop(self, "selected_date")
+        row.prop(context.scene.DatePickerProperties, "selected_date")
 
         split = layout.split()
         col = split.row()
@@ -2050,11 +2052,23 @@ class BlenderBIM_DatePicker(bpy.types.Operator):
                     op.selected_date = helper.canonicalise_time(selected_date)
 
     def invoke(self, context, event):
-        self.display_date = helper.get_scene_prop(self.target_prop) or helper.canonicalise_time(datetime.now())
+        self.display_date = self.get_scene_prop(self.target_prop) or helper.canonicalise_time(datetime.now())
         context.scene.DatePickerProperties.display_date = self.display_date
         context.scene.DatePickerProperties.selected_date = self.display_date
         return context.window_manager.invoke_props_dialog(self)
 
+    def get_scene_prop(self, prop_path):
+        prop = bpy.context.scene.get(prop_path.split(".")[0])
+        for part in prop_path.split(".")[1:]:
+            if part:
+                prop = prop.get(part)
+        return prop
+
+    def set_scene_prop(self, prop_path, value):
+        parent = self.get_scene_prop(prop_path[: prop_path.rfind(".")])
+        prop = prop_path.split(".")[-1]
+        parent[prop] = value
+
 
 class BlenderBIM_DatePickerSetDate(bpy.types.Operator):
     bl_label = "set date"

src/blenderbim/blenderbim/bim/module/sequence/prop.py

@@ -386,8 +386,8 @@ class BIMWorkCalendarProperties(PropertyGroup):
 
 
 class DatePickerProperties(PropertyGroup):
-    display_date: StringProperty()
-    selected_date: StringProperty()
+    display_date: StringProperty(name="Display Date")
+    selected_date: StringProperty(name="Selected Date")
 
 
 class BIMDateTextProperties(PropertyGroup):

src/blenderbim/blenderbim/bim/module/sequence/ui.py

@@ -203,12 +203,10 @@ class BIM_PT_work_schedules(Panel):
 
     def draw_visualisation_ui(self):
         row = self.layout.row(align=True)
-        target_prop = "BIMWorkScheduleProperties.visualisation_start"
-        op = row.operator("bim.datepicker", text=helper.get_scene_prop(target_prop), icon="REW")
-        op.target_prop = target_prop
-        target_prop = "BIMWorkScheduleProperties.visualisation_finish"
-        op = row.operator("bim.datepicker", text=helper.get_scene_prop(target_prop), icon="FF")
-        op.target_prop = target_prop
+        op = row.operator("bim.datepicker", text=self.props.visualisation_start or "Start Date", icon="REW")
+        op.target_prop = "BIMWorkScheduleProperties.visualisation_start"
+        op = row.operator("bim.datepicker", text=self.props.visualisation_finish or "Finish Date", icon="FF")
+        op.target_prop = "BIMWorkScheduleProperties.visualisation_finish"
         op = row.operator("bim.visualise_work_schedule_date", text="", icon="RESTRICT_RENDER_OFF")
         op.work_schedule = self.props.active_work_schedule_id
         op = row.operator("bim.visualise_work_schedule_date_range", text="", icon="OUTLINER_OB_CAMERA")