Making changes in the Digital Twin

Introduction

Usually it is necessary to make changes like renaming, adding, removing parts, changing their materials and colors, these are all basic functionalities that Unity already provides.

Renaming

To rename a part in the hierarchy:

1. Right click the part you wish to rename in the hierarchy
2. Select the option "Rename"
3. To save the changes press "Setup" on the "ZeroStateManager" component ( find it by typing ZeroStateManager in the hierarchy )

Moving Parts

To find out how to move around objects in unity, you can use Unity Learn's website.

1. Select the part you wish to move around the scene
   

2. While Move tool (W) is selected, select the handles of the selected part and move them to the desired location. The part can be either moved, rotated, or scaled.

3. To save the changes press "Setup" on the "ZeroStateManager" component ( find it by typing ZeroStateManager in the hierarchy )
   

Adding Parts

To add parts to the scene it is required to create an FBX format file containing the 3d parts and import it to your project:

1. Use the article for importing your FBX model into the Unity project

2. Add the new parts into your scene, make sure the parts are under the "Main Model" part in the hierarchy.

3. To save the changes press "Setup" on the "ZeroStateManager" component ( find it by typing ZeroStateManager in the hierarchy )

Removing Parts

Note that models that are linked to their FBX file cannot be removed, only the top parent of the hierarchy can be removed:

1. Select the part you wish to remove

2. Press "Delete" on your keyboard, or right click the object and select "Delete"

3. To save the changes press "Setup" on the "ZeroStateManager" component ( find it by typing ZeroStateManager in the hierarchy )

It is important to note that when done making changes in the digital twin,

You must use the 'Setup' function before play testing or building the digital twin.

The Setup function defines the current state of the model as a default state.

*This action can be done only in Unity's Edit mode.

The way to setup is by clicking on the top object of the model's hierarchy, which contains the component called 'Zero State Manager'. if you can't find it, use the search field in the hierarchy, and write ZeroStateManager.

Then press on the Setup button.

Test the changes in the model in Play mode.

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