Separating Models into Individual Structures and Colours

The Select/Split function in Elucis is a powerful and efficient method for separating complex models into individual anatomical structures.

This will guide you through selecting, refining, and splitting portions of a model, as well as transferring selections between structures.

1. Prepare the Model

1. Open the Controller Menu.

2. Ensure the model you intend to split is the active structure.

3. Open the Stylus Menu and press the Select button.

You can now begin selecting the anatomy you wish to isolate — for this example, we’ll focus on the left ventricle.

2. Understand the Preview and Selection Toggles

On the surface plane, you’ll see three toggles:

• Show Selection – Displays both the full model and your selection.

• Preview Inside – Shows only your selection, hiding the rest of the model.

• Preview Outside – Shows the model minus your selection.

These views, combined with the Grow and Shrink Selection tools, allow for highly precise control.

3. Refine the Selection

While in Preview Inside mode:

• You’ll see your selection only.

• Use Grow Selection to add anatomy to your selection — visible anatomy will appear as it’s added.

• Use Shrink Selection to remove anatomy from your selection.

While in Preview Outside mode:

• You’ll see the model without your current selection.

• Use Grow Selection to remove anatomy from the model (adding it to the selection).

• Use Shrink Selection to add anatomy back to the model (removing it from the selection).

These complementary tools enable accurate boundary definition between two adjacent structures.

4. Split the Model

Once satisfied with your selection:

1. Turn to the Work Surface.

2. You’ll see two buttons: Split and Copy.

3. Next to the Split button, locate the Destination toggle.

4. Ensure the setting below it reads New Structure.

5. Press Split.

Your selection will change color, indicating it has been separated into a new structure.

To verify:

• Open the Models Menu — you’ll see a new structure labeled “Intersection.”

• Rename the new structure as desired.

Repeat these steps if you wish to segment your model further.

5. Transfer a Selection Between Structures

To transfer part of one structure into another:

1. Ensure the source structure (the one containing the anatomy you want to move) is active.

2. Use the Select Tool to highlight the portion you wish to transfer.

3. On the Work Surface, locate the Destination toggle next to the Split button.

4. Cycle through the available structures until you find the target structure.

5. Press Split.

The selected anatomy will now transfer to the chosen destination structure.

This process provides precise, flexible control over model organization, allowing for cleaner segmentation and easier anatomical analysis.