3D MODELLING

THE DIGITAL TWIN OF THE REAL WORLD

In urban, infrastructure, and contemporary architectural projects, 3D modeling is no longer just a visual tool but an essential technical requirement for decision-making support.

Altivis transforms data collected on-site into georeferenced three-dimensional models, to scale and compliant with standards, usable both for visual presentation and technical analysis.

WHAT IS A GEOREFERENCED 3D MODEL?

It is a three-dimensional digital representation of a site or building, anchored in a real coordinate system.
These models are used for both graphic and analytical purposes, particularly in:

• Urban planning

• Architectural design

• Renovation or urban transformation projects

• Energy infrastructures and networks

Altivis combines photogrammetric data, LIDAR, and drone data to create complete and reliable models.

TECHNICAL INFRASTRUCTURE: MESH AND LEVELS OF DETAIL (LOD)

2- Levels of Detail (LOD - Level of Detail)

Models are produced according to different levels of complexity based on the intended use:

LOD0: Building footprint (plan view)

LOD1: Simple volumes (cubic shapes)

LOD2: Simplified roof and facade details

LOD3: Realistic representation of facades

LOD4: Interior of the building (on request)

This hierarchy allows for optimal data management and smooth visualizations.

1- Mesh Modeling

Point clouds are transformed into high-resolution triangulated meshes, faithfully replicating the geometry of the terrain or building. Textures can be added for enhanced visual realism.

INTERNATIONAL COMPLIANCE AND CITYGML INTEGRATION

The 3D models produced by Altivis are not just simple visual representations. They are also compatible with international standards:

• Production of data in CityGML format

• Compatibility with BIM systems (IFC standard)

• Support for publishing 3D web maps

• Full integration with Geographic Information Systems (GIS/CBS)

Thus, each model becomes an element that can be integrated into smart city systems, urban management, or strategic planning.

WHAT WE PROVIDE

• Acquisition of high-precision drone and LIDAR data

• Photogrammetric processing and mesh model production

• Delivery of georeferenced models (UTM, EPSG)

• Available formats: CityGML, OBJ, FBX, DXF, IFC

• Detail levels tailored to your project (LOD)

• Optional web model publishing

DOMAINES D’APPLICATION

• Urban renewal and development projects

• Architecture competitions and 3D visualization

• Infrastructure and transportation simulations

• Digital interfaces for smart cities

• Real estate presentation and communication platforms

• Modeling of energy, water, and telecom networks

Boost your projects with Altivis 3D modeling! Accurate, realistic, and ready for planning, design, or presentation.

Contact us today!