Project Files

A project file stores your work in Volvicon, including all imported data, created objects, measurements, primitives, and view settings. This allows you to save your progress and return to it later.

What is Stored in a Project?

A Volvicon project contains:

Content	Description
Volume images	Imported 3D image data
Masks	Segmentation results
Surface meshes	Generated or imported surfaces
Volume meshes	Generated or imported meshes
Measurements	Distances, angles, annotations
Primitives	ROIs and geometric objects
Analyses	Analysis objects
View settings	Camera positions, window/level, transfer functions
Object properties	Colors, visibility, names

Working with Projects

Creating a New Project

1. Click New Project on the File ribbon tab
2. Select the data file(s) to import
3. Configure import options
4. The project is created with the imported data

Opening an Existing Project

1. Click Open Project on the File ribbon tab
2. Navigate to the .vvcx file
3. Click Open

Saving a Project

Action	Shortcut	Description
Save	Ctrl+S	Save changes to current project
Save As	Ctrl+Shift+S	Save as a new project with a new name

note

Save your project regularly to avoid losing work.

Project Data Management

Importing Additional Data

To add more data to an existing project:

1. Open the project
2. Click Import on the File ribbon tab
3. Select the data type and file(s)
4. The new data is added to the project

Exporting Data

To export objects from a project:

1. Select the object in the Project Panel
2. Click Export on the File ribbon tab
3. Choose the export format
4. Configure options and save

Version Compatibility

Volvicon project files (.vvcx) include format version information to ensure proper compatibility when sharing projects between different versions of Volvicon.

Compatibility Scenarios

Scenario	Behavior
Same version	Opens without issues
Older project → Newer Volvicon	Full backward compatibility; opens normally
Newer project → Older Volvicon	Warning displayed; some features may not load

What Happens When Opening Projects

Opening a project runs two independent checks. The format version is checked first, then the integrity data. Each one has its own dialog, each is answered separately, and one project can raise both, one after the other.

The format version check:

• Compatible files: Open seamlessly with no user interaction required. A project saved by an older Volvicon, or one saved before format versions were recorded, is treated as compatible.
• Newer format files: A Project File Compatibility Warning appears when the project was written in a newer project format than this Volvicon supports, which is narrower than simply a newer Volvicon version. You can choose to:
  • Yes: Attempt to open the file (some data may not load correctly)
  • No: Stop opening, to avoid potential issues. No is the default.

Sharing Projects

For best results when sharing projects with colleagues, ensure everyone uses the same or a compatible version of Volvicon. When in doubt, the person with the newer version should save a copy for the recipient.

Data Integrity

Project files include built-in integrity verification to help detect unauthorized modifications, tampering, or accidental corruption. This feature is designed to support compliance with regulatory requirements in industries such as:

• Medical imaging (FDA 21 CFR Part 11, ISO 13485)
• Automotive (IATF 16949)
• Manufacturing (ISO 9001)

How Integrity Verification Works

When you save a project, Volvicon automatically creates an integrity manifest that records:

• A list of all files in the project
• File sizes and checksums
• A cryptographic hash of the manifest itself

When you open a project, Volvicon verifies this information to detect:

Detection Type	Description
Missing files	Files expected by the manifest but not found
Added files	Unexpected files found that weren't in the original project
Modified files	Files with different sizes or different CRC32 values than when the project was saved
Tampered manifest	Changes to the integrity data itself or a corrupted manifest

Integrity Warnings

If Volvicon detects an integrity issue, a Project Integrity Warning appears with details about what was detected. You can choose to:

• Yes: Open the project anyway (use with caution)
• No: Stop opening, to investigate the issue. No is the default.

Answering No to either warning stops the opening. Answering Yes to the compatibility warning moves on to the integrity check, which may raise a warning of its own.

Missing Manifest

If a project file is missing its integrity manifest, Volvicon will warn you before opening. A missing manifest indicates that the file may have been modified outside of Volvicon or the manifest was deliberately removed.

For Regulated Industries

If your organization requires audit trails for data integrity, consider documenting the integrity check results shown when opening project files. The warning messages include specific file names for traceability.

What is checked when a project opens

Both checks, and every way each one can end, in one picture. No is the default button on both warnings.

Best Practices

Practice	Reason
Save frequently	Prevent data loss
Use descriptive names	Easy identification
Keep project folders together	Maintain data integrity
Back up important projects	Recovery from failures
Close projects before moving folders	Prevent broken references

Troubleshooting

Issue	Solution
Missing data files	Check if files were moved; re-link or re-import
Cannot open project	Verify Volvicon version compatibility
Large project size	Consider using referenced data mode
Slow loading	Large datasets take time; be patient

Related Topics

• First Steps – Creating and saving projects