Isolate/hide objects or classes based on selection

RaphaëlVouilloz

Hi,
I've started learning to code for BlenderBIM; the demo is great thanks.
As an exercise I made the following isolate/hide menu:
https://drive.google.com/file/d/1QZ3mLsyfp2UV2lDmYQIujaj7vbzAhHEV/view?usp=sharing
It's very similar to this discussion: https://community.osarch.org/discussion/767/
Have such tools already been implemented? Is it worth going on? (eg with shortcuts)
Let me know what you think :)
The code is :

import bpy
import blenderbim.tool as tool

visibility_changed = False

class IsolateSelectedObjects(bpy.types.Operator):
    bl_idname = "bim.isolate_selected_objects"
    bl_label = "Isolate Selected Objects"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Isolate the selected objects"
    ifc_class: bpy.props.StringProperty()

    def execute(self, context):
        selected_objects = context.selected_objects
        for obj in bpy.data.objects:
            global visibility_changed
            if not visibility_changed:
                obj["original_visibility"] = obj.hide_viewport
            if obj not in selected_objects:
                obj.hide_viewport = True
        visibility_changed = True
        return {'FINISHED'}

class HideSelectedObjects(bpy.types.Operator):
    bl_idname = "bim.hide_selected_objects"
    bl_label = "Hide Selected Objects"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Hide the selected objects"
    ifc_class: bpy.props.StringProperty()

    def execute(self, context):
        selected_objects = context.selected_objects
        for obj in bpy.data.objects:        
            global visibility_changed
            if not visibility_changed:
                obj["original_visibility"] = obj.hide_viewport
            if obj in selected_objects:
                obj.hide_viewport = True
        visibility_changed = True
        return {'FINISHED'}

class IsolateSelectedClasses(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.isolate_selected_classes"
    bl_label = "Isolate Selected Classes"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Isolate the objects with the same class as one of the selected objects"
    ifc_class: bpy.props.StringProperty()

    def execute(self, context):
        selected_objects = context.selected_objects
        selected_classes = set()
        for selected_obj in selected_objects:
            element = tool.Ifc.get_entity(selected_obj)
            selected_classes.add(element.is_a())
        for obj in bpy.data.objects:
            global visibility_changed
            if not visibility_changed:
                obj["original_visibility"] = obj.hide_viewport
            if obj not in selected_objects:
                element = tool.Ifc.get_entity(obj)
                if element.is_a() not in selected_classes:
                    obj.hide_viewport = True
        visibility_changed = True
        return {'FINISHED'}

class HideSelectedClasses(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.hide_selected_classes"
    bl_label = "Hide Selected Classes"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Hide the objects with the same class as one of the selected objects"
    ifc_class: bpy.props.StringProperty()

    def execute(self, context):
            selected_objects = context.selected_objects
            selected_classes = set()
            for selected_obj in selected_objects:
                element = tool.Ifc.get_entity(selected_obj)
                selected_classes.add(element.is_a())
            for obj in bpy.data.objects:
                global visibility_changed
                if not visibility_changed:
                    obj["original_visibility"] = obj.hide_viewport
                element = tool.Ifc.get_entity(obj)
                if element.is_a() in selected_classes:
                    obj.hide_viewport = True
            visibility_changed = True
            return {'FINISHED'}

class RestoreOriginalVisibility(bpy.types.Operator):
    bl_idname = "bim.restore_original_visibility"
    bl_label = "Restore Original Visibility"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Restore the original visibility state of objects"

    def execute(self, context):
        for obj in bpy.data.objects:
            if "original_visibility" in obj:
                obj.hide_viewport = obj["original_visibility"]
        global visibility_changed
        visibility_changed = False
        return {'FINISHED'}

Coen

Have such tools already been implemented? Is it worth going on? (eg with shortcuts)

It's very similar how BlenderBIM spreadsheet hides and isolates from sorted IfcGuids from a spreadsheet.

https://github.com/C-Claus/blenderbim_spreadsheet/blob/master/operator.py#L396

What I think would be a really cool feature is if you manage to save the filters with the camera standpoint. I couldn't manage to do that.

Moult

The search filter panel has got quite a few ways to select elements, and there is also the select similar or filter selected panel which already exists. It sounds similar to what you've got there.

RaphaëlVouilloz

Thanks! What i had in mind was something similar to the HI HH IC HC HR hotkeys in Revit. I use a lot the "/" in Blender, which I found could be augmented in that way.

Moult

HI = \ or S-H
HH = H
IC = Select via outliner, search query, or click select class / select type in object information / select similar, then \ or S-H
HC = see above, then H
HR = A-H

RaphaëlVouilloz

Ok, thanks!