Sun position add-on is now detected in the current session instead of needing to restart Blender

src/blenderbim/blenderbim/bim/module/light/data.py

@@ -34,10 +34,15 @@ class SolarData:
     def load(cls):
         cls.is_loaded = True
         cls.data = {
+            "sun_position": cls.sun_position(),
             "sites": cls.sites(),
             "true_north": cls.true_north(),
         }
 
+    @classmethod
+    def sun_position(cls):
+        return tool.Blender.get_sun_position_addon()
+
     @classmethod
     def sites(cls):
         results = []

src/blenderbim/blenderbim/bim/module/light/decorator.py

@@ -28,8 +28,6 @@ from gpu_extras.batch import batch_for_shader
 from bpy_extras.view3d_utils import location_3d_to_region_2d
 from blenderbim.bim.module.light.data import SolarData
 
-sun_position = tool.Blender.get_sun_position_addon()
-
 
 class SolarDecorator:
     is_installed = False
@@ -149,7 +147,7 @@ class SolarDecorator:
         indices = []
         coord_offset = 0
         for h in range(24):
-            analemma_verts = sun_position.sun_calc.calc_analemma(context, h)
+            analemma_verts = SolarData.data["sun_position"].sun_calc.calc_analemma(context, h)
             coords.extend([origin @ v for v in analemma_verts])
             for i in range(len(analemma_verts) - 1):
                 indices.append((coord_offset + i, coord_offset + i + 1))

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

@@ -36,8 +36,6 @@ from bpy.types import PropertyGroup
 from blenderbim.bim.module.light.data import SolarData
 from blenderbim.bim.module.light.decorator import SolarDecorator
 
-sun_position = tool.Blender.get_sun_position_addon()
-
 
 def get_sites(self, context):
     if not SolarData.is_loaded:
@@ -103,6 +101,12 @@ def update_display_sun_path(self, context):
 
 
 def update_sun_path():
+    if not SolarData.is_loaded:
+        SolarData.load()
+
+    if (sun_position := SolarData.data["sun_position"]) is None:
+        return
+
     props = bpy.context.scene.BIMSolarProperties
     sun_props = bpy.context.scene.sun_pos_properties
     props.timezone = tzfpy.get_tz(props.longitude, props.latitude)

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

@@ -21,9 +21,6 @@ import blenderbim.tool as tool
 from blenderbim.bim.module.light.data import SolarData
 
 
-sun_position = tool.Blender.get_sun_position_addon()
-
-
 class BIM_PT_radiance_exporter(bpy.types.Panel):
     """Creates a Panel in the render properties window"""
 
@@ -121,13 +118,13 @@ class BIM_PT_solar(bpy.types.Panel):
     bl_options = {"HIDE_HEADER"}
 
     def draw(self, context):
-        if sun_position is None:
-            self.layout.label(text="Enable 'Sun Position' addon to continue.")
-            return
-
         if not SolarData.is_loaded:
             SolarData.load()
 
+        if (sun_position := SolarData.data["sun_position"]) is None:
+            self.layout.label(text="Enable 'Sun Position' Add-on To Continue", icon="ERROR")
+            return
+
         props = context.scene.BIMSolarProperties
 
         if SolarData.data["sites"]: