Solutions - 3D City Models

3D City Models

There are numerous applications of 3D city models: town planning, architecture, municipal asset management, security and defence, emergency evacuation planning, accident and catastrophy risk assessment, locationing services, information services, virtual reality, commercial visual effects and advertisments, telecommunications, visualizations, fly-through animations, and so on.

With Terrasolid applications you can produce a 3D model of buildings automatically by using airborne laser data and (optionally) images. An approximate model of little detail can be created even from a point cloud of less than 2 points on a square meter but the more dense the point cloud, the more accurate and detailed the 3D model. A complete result will be obtained by scanning the area from both air vessel (airplane or helicopter) and ground vehicle, matching the point clouds to each other.

With tools from Terrasolid software, you can create a complete city model including a terrain model, vectorized buildings and possibly other objects, trees represented by RPC cells¹, images draped over the terrain or used as textures for walls and roofs. From the data, you can easily and fastly create rendered views or fly-through movies for the flexible presentation of the data. If you have a high-density point cloud that stores true-color values for each point, this can even be enough for visualization in order to get a complete representation of the city or for simple analysis tasks.

View a colored point cloud of an MMS system in a short animation:
Terrasolid (2014): Trimble MX-8 data from Helsinki - Processed and colored using Terrasolid software

¹ RPC cells are not part of Terrasolid software

 

textured 3D city model
from ALS data

citymodel_texture

roof structure analysis

citymodel_roofstructure

RGB-colored point cloud
from MLS data

citymodel_points

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Last update on this website: 15.12.2017
Last update on this page: 20.10.2014