Digital Twin & Urban Informatization Solutions

Digital City
3D Modeling

Constructing high-precision, multi-level 3D urban models, integrating multi-source data, building a digital twin city foundation, providing comprehensive 3D spatial information support for urban planning, construction, and management.

Digital City 3D Modeling Effect
L1-L5 Full Precision Coverage

Multi-element Integrated Urban 3D Model

Urban Planning
Smart City
Traffic Management
Emergency Command
Public Services
Decision Analysis

Digital City 3D Model Components

Urban 3D modeling is a multi-level, multi-element complex collection that comprehensively restores urban spatial information

Terrain and Landform Model

Terrain and Landform

Precise Digital Elevation Model (DEM) and Digital Surface Model (DSM), forming the 3D base of the city, accurately reflecting terrain undulations and surface morphology.

  • Digital Elevation Model (DEM)
  • Digital Surface Model (DSM)
  • Contour Lines and Slope Analysis
Building Models

Building Models

Core elements, from texture-free block models to detailed models with realistic materials, fully presenting urban architectural features.

  • Residential and Industrial Buildings
  • Historical and Landmark Buildings
  • Detailed Textures and Material Representation
Roads and Transportation Facilities

Roads and Transportation

Including road networks, bridges, tunnels, platforms and other transportation infrastructure, accurately reflecting traffic network layout and connectivity.

  • Roads and Intersections at All Levels
  • Bridges, Tunnels and Rail Transit
  • Traffic Signs and Signal Facilities

Municipal Facilities

Pipelines, power grids, communication networks and other underground and aboveground infrastructure, building digital twins of urban lifeline systems.

  • Underground Utility Tunnels and Pipelines
  • Power and Communication Facilities
  • Water Supply, Drainage and Gas Systems

Landscape Vegetation

Parks, green spaces, trees and other natural environment elements, restoring urban ecology and green landscape.

  • Parks and Public Green Spaces
  • Street Trees and Greenery Belts
  • Water Bodies and Waterfront Landscapes

Other Features

Urban furniture (street lights, benches), water bodies and key indoor spaces, perfecting urban detail representation.

  • Urban Furniture and Public Facilities
  • Water Bodies and Water Conservancy Facilities
  • Key Area Indoor Spaces

Digital City 3D Modeling Process

Standardized process ensures model quality and efficiency, full-chain service from data collection to platform application

Data Collection

Comprehensive use of multiple advanced technical means to obtain comprehensive, accurate urban spatial data, providing high-quality data foundation for subsequent modeling.

  • Oblique photography to obtain high-resolution images
  • LiDAR point cloud data collection
  • Satellite remote sensing and aerial photography data
  • BIM model and traditional CAD drawing integration
1
2

Data Processing and Modeling

Combining automation with manual refinement to construct high-precision urban 3D models, ensuring model quality and detail representation.

  • Automatic generation of white models or reality models
  • Manual 3D reconstruction and refinement for key areas
  • BIM model lightweighting and scene fusion
  • Texture mapping and material assignment

Model Lightweighting and Optimization

Professional optimization processing of models to improve loading and running efficiency while ensuring precision, meeting the needs of smooth large-scale scene display.

  • Model face reduction and topology optimization
  • LOD (Level of Detail) model construction
  • Texture compression and atlas optimization
  • 3D Tiles format conversion
3
4

Platform Integration and Application

Importing processed models into professional platforms to achieve correlation analysis with multi-source data, leveraging the application value of digital city models.

  • CIM or digital twin platform integration
  • IoT data and business system correlation
  • Visualization and interaction function development
  • Spatial analysis and simulation function implementation

Model Precision Levels (L1~L5)

Five-level precision system for building models, meeting the needs of different application scenarios

L1

Block Model

L1 Block Model

Simple cubes, only representing the location, base and approximate height of buildings, used for macro planning and illustration.

Precision Level Basic Level

Application Scenarios: Urban master planning, macro analysis

L2

Standard Model

L2 Standard Model

Basic appearance shape, roof structure, distinguishable main building components, with simple textures.

Precision Level Standard Level

Application Scenarios: Regional planning, urban design

L3

Detailed Model

L3 Detailed Model

With realistic textures and materials, clearly showing details such as windows, balconies and decorations.

Precision Level Detailed Level

Application Scenarios: Urban management, public services

L4

Component-level Model

L4 Component-level Model

Including complete building components (such as beams, columns, doors, windows, etc.)

Precision Level Component Level

Application Scenarios: Facility management, maintenance and repair

L5

Indoor-Outdoor Integrated

L5 Indoor-Outdoor Integrated Model

Including complete indoor detailed models, furniture and equipment, enabling seamless browsing from macro to micro.

Precision Level Ultimate Level

Application Scenarios: Emergency command, immersive experience

Professional Production Tools and Platforms

Adopting industry-leading hardware and software tools to ensure model quality and project efficiency

Automated Modeling Tools

Utilizing advanced oblique photography processing software to achieve rapid automated generation of urban models, significantly improving modeling efficiency and consistency.

ContextCapture

Professional oblique photography modeling software, generating high-precision reality 3D models

RealityCapture

Multi-source data processing platform, supporting rapid modeling from photos and point clouds

DP-Modeler

3D modeling software for surveying and mapping industry, automated feature extraction

Pix4Dmapper

UAV data processing software, generating DSM, DOM and 3D models

Manual Modeling Tools

Professional 3D modeling software for detailed model production and editing, achieving high-precision, high-detail model representation.

3ds Max

Powerful 3D modeling software, widely used in architectural visualization

Blender

Open-source 3D creation suite, supporting modeling, animation and rendering

Maya

Professional 3D animation and modeling software, suitable for complex model production

Rhino

Parametric modeling software, suitable for creating precise curves and surfaces

BIM and GIS Integration Tools

Realizing the integration of Building Information Modeling and Geographic Information System, constructing complete urban information models.

Revit

Professional BIM modeling software, creating building models with rich information

ArcGIS

Professional GIS platform, realizing geospatial data management and analysis

Bentley

Infrastructure engineering software, supporting full lifecycle information management

CityEngine

Urban modeling software, generating large-scale urban environments through rules

Game Engines and Visualization Platforms

Used for final visualization presentation and interactive development, creating immersive urban experiences and professional application systems.

Unreal Engine

High-performance game engine, creating realistic real-time rendering scenes

Unity

Cross-platform game engine, suitable for developing interactive 3D applications

Cesium

Open-source 3D earth platform, supporting large-scale geospatial data

SuperMap

Domestic GIS platform, supporting 2D and 3D integrated spatial information services

Contact Us

Consult 3D modeling solutions
Get a customized quote

Whether you need to understand the details of 3D modeling technology or want to get a project quote, our professional team will provide you with one-on-one consultation services.

Company Address

Room 1-1501, Jinhua Garden, No. 385 Jiaotong Avenue, Danyang Street, Xiaonan District, Xiaogan City, Hubei Province, China

Contact Phone

(+86)13004585899

Contact Email

service@secondmap.cn

微信二维码

Scan with WeChat

Inquiry form