Integrate ifccityjson in BlenderBIM (#1859)

* ifccityjson-BB integration: include CJIO in makefile

* Add ifccityjson to BlenderBIM

* Make ifccityjson work like a package

* Use pip while installing CJIO dependency for ifccityjson

* revert removal of brick module

* Changes from pull request review

* Use ifccityjson as CLI and as package for BlenderBIM

src/blenderbim/Makefile

@@ -134,6 +134,8 @@ endif
 	# Provides IFC5D functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifc5d/ifc5d dist/blenderbim/libs/site/packages/
 	rm -rf dist/working
+	# Provides IFCCityJSON functionality
+	cp -r dist/working/IfcOpenShell-0.7.0/src/ifccityjson dist/blenderbim/libs/site/packages/
 
 	# Provides Mustache templating in construction documentation
 	mkdir dist/working
@@ -259,6 +261,14 @@ endif
 	mkdir dist/working
 	cd dist/working && wget $(HPPFCL_URL)
 	cd dist/working && tar -xf hpp-fcl*
+
+	# Required by IFCCityJSON
+	mkdir dist/working
+	cd dist/working && python -m venv env
+	cd dist/working && . env/bin/activate && pip install cjio
+	cp -r dist/working/env/Lib/site-packages dist/blenderbim/libs/site/packages/
+	rm -rf dist/working
+
 ifeq ($(PLATFORM), linux)
 	cp -r dist/working/lib/$(PYLIBDIR)/site-packages/hppfcl dist/blenderbim/libs/site/packages/
 	cp -r dist/working/lib/*.so* dist/blenderbim/libs/

src/blenderbim/blenderbim/bim/__init__.py

@@ -63,6 +63,7 @@ modules = {
     "bimtester": None,
     "diff": None,
     "patch": None,
+    "gis": None,
     "covetool": None,
     "augin": None,
     "debug": None,

src/blenderbim/blenderbim/bim/module/gis/__init__.py

@@ -0,0 +1,17 @@
+import bpy
+from . import prop
+from . import operator
+from . import ui
+
+classes = (
+    prop.BIMCityJsonProperties,
+    operator.BIM_OT_cityjson2ifc,
+    operator.BIM_OT_find_cityjson_lod,
+    ui.BIM_PT_cityjson_converter,
+)
+
+def register():
+    bpy.types.Scene.ifccityjson_properties = bpy.props.PointerProperty(type=prop.BIMCityJsonProperties)
+
+def unregister():
+    del bpy.types.Scene.ifccityjson_properties

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

@@ -0,0 +1,47 @@
+import bpy
+from bpy.types import Operator
+from cjio import cityjson
+from ifccityjson.cityjson2ifc.cityjson2ifc import Cityjson2ifc
+
+class BIM_OT_cityjson2ifc(Operator):
+    bl_idname = "bim.convert_cityjson2ifc"
+    bl_label = "Convert CityJSON to IFC"
+    bl_context = "scene"
+
+    def execute(self, context):
+        props = context.scene.ifccityjson_properties
+        city_model = cityjson.load(props.input, transform=False)
+        data = {
+            "file_destination": props.output,
+            "lod": props.lod,
+            "split": props.split_lod,
+        }
+        if props.name is not "":
+            data["name_attribute"] = props.name
+
+        converter = Cityjson2ifc()
+        converter.configuration(**data)
+        converter.convert(city_model)
+        if props.load_after_convert:
+            bpy.ops.bim.load_project(filepath=props.output)
+        return {'FINISHED'}
+
+
+class BIM_OT_find_cityjson_lod(Operator):
+    bl_idname = "bim.find_cityjson_lod"
+    bl_label = "Find LODs in CityJSON file"
+    bl_context = "scene"
+
+    def execute(self, context):
+        props = context.scene.ifccityjson_properties
+        city_model = cityjson.load(props.input)
+        lods = set()
+        for obj_id, obj in city_model.get_cityobjects().items():
+            for geometry in obj.geometry:
+                lod = str(geometry.lod)
+                if lod not in lods:
+                    lods.add(lod)
+                    props.lods.add()
+                    props.lods[-1].name = lod
+        props.is_lod_found = True
+        return {'FINISHED'}

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

@@ -0,0 +1,16 @@
+from bpy.types import PropertyGroup
+from bpy.props import StringProperty, BoolProperty, EnumProperty, CollectionProperty
+from blenderbim.bim.prop import StrProperty
+
+class BIMCityJsonProperties(PropertyGroup):
+    def get_lods(self, context):
+        return [(item.name, "LOD" + item.name, "Level of Detail " + item.name) for item in self.lods]
+
+    input: StringProperty(name="cj_input", default="", subtype='FILE_PATH')
+    output: StringProperty(name="ifc_output", default="", subtype='FILE_PATH')
+    name: StringProperty(name="identifier", default="")
+    split_lod: BoolProperty(name="split_lod", default=True)
+    lods: CollectionProperty(name="lods", type=StrProperty)
+    lod: EnumProperty(name="lod", description="", items=get_lods, options={'ANIMATABLE'}, default=None)
+    is_lod_found: BoolProperty(name="is_lod_found", default=False)
+    load_after_convert: BoolProperty(name="load_after_convert", default=True)

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

@@ -0,0 +1,32 @@
+from bpy.types import Panel
+
+class BIM_PT_cityjson_converter(Panel):
+    bl_label = "IFC CityJSON converter"
+    bl_idname = "BIM_PT_ifccityjson"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+
+    def draw(self, context):
+        layout = self.layout
+        scene = context.scene
+        props = scene.ifccityjson_properties
+
+        row = layout.row(align=True)
+        row.prop(props, "input")
+        row = layout.row(align=True)
+        row.operator("bim.find_cityjson_lod")
+        row = layout.row(align=True)
+        row.prop(props, "output")
+        row = layout.row(align=True)
+        row.prop(props, "name")
+        row = layout.row(align=True)
+        row.prop(props, "split_lod")
+        row.prop(props, "load_after_convert")
+        row = layout.row(align=True)
+        row.prop(props, "lod")
+        if not props.is_lod_found:
+            row.enabled = False
+        row = layout.row(align=True)
+        row.operator("bim.convert_cityjson2ifc")