Design and Development of BIM on GIS Interoperability Open Platform

Design and Implementation of BIM and GIS Interoperability Open Platform

16th June 2014HONG, Chang-Hee(KICT)PARK, Heegu(Gaia3D Inc.,)

Introduction:What is BIM on GIS project?

3Introduction to BIM on GIS Open Platform

BIM data GIS data

Objects of Buildings Objects on the Earth

Walls, Pillars, Floors, Windows, Doors, etc. Roads, Buildings, Mountains, Trees, etc.

Usually created by HumanUsually generated via surveying(and

processing)

.RVT, .IFC, and so on .SHAPE, .GEOTIFF, and so on

BIM data vs. GIS data

There’re basically and originally differences between BIM data and GIS data.


BIM data GIS data

BIM data vs. GIS data

BIM data and GIS data are xenogeneic data.


Data model to integrate BIM data with GIS data to seamlessly and freely connect indoor to outdoor

BIM and GIS interoperability platform for various applications and services Collaborative research project of Korea Institute of Construction Technology(KICT)

and Gaia3D, Inc.,

BIM on GIS project

Structure

Facility / Building

Room

City

World

Outdoor

Components

Country

Infrastructure

Feature / Building

Indoor

Building information Model

[BIM]

[GIS]Geographic Information System


Developing BIM and GIS interoperability platform for various applications and services Developing geospatial data format for BIM on GIS Developing algorithm for LOD representation Developing visualization technology about geospatial data of massive BIM on GIS Developing interoperability platform for BIM on GIS Platform stabilization/commercialization and development for application services

1st Year(2012) 2nd Year(2013) 3rd Year(2014) 4th Year(2015) 5th Year(2016)

Base ResearchPilot Implementation,Architecture Design,

Specification Definition

Key Technical ElementsData Model,

Element TechnologyPlatform Sever

Platform

DevelopmentAdaptive LOD,

3D Visualization Technology,

BIM/GIS Platform

CommercializationStabilization,

Performance Improvement

S/W Packaging,

Application and Service Technologies

Milestone

Technology - System:System for BIM on GIS project


Rapid displaying Terrain model and Photorealistic 3D buildings Supporting various kinds of data types including BIM data, terrain elevation data, ortho-images, photorealistic 3D building model, indoor texture, etc.

Supporting Data Structure Supporting database based data structure and schema Simultaneous spatial query with BIM and 3D GIS Overlapping analysis with previously built data Supporting BIM/GIS data model

Rapid 3D display of big size data Rapid 3D display of big size data 3D engine development supporting mobile

environment via hierarchical structure of BIM/GIS data

Server Mobile device

Data Simplification

Spatial Indexing

Data Compression

3D Rendering

Memory Management

Data Streaming

Target System


Object Index

Geometry

Spatial Index

Property

Header

IFCG3D

* Industry Foundation Classes (IFC) data model is intended to describe building and construction industry data. It is a platform neutral, open file format specification that is not controlled by a single vendor or group of vendors. It is an object-based file format with a data model developed by buildingSMART (formerly the International Alliance for Interoperability, IAI) to facilitate interoperability in the architecture, engineering and construction (AEC) industry, and is a commonly used collaboration format in Building information modeling (BIM) based projects

Service Model of IFC for Interoperability

Service Model: IFC conversion format for BIM/GIS interoperability G3D is designed for rapid display of big size IFC data based on GIS Characteristics of G3D

Including IFC geometry and property information Relative coordinate + Georeference information(Latitude, Longitude, Altitude,

Direction, Etc.) LOD and spatial indexing information for rapid display Geometry information based on file system Property information based on database (ongoing)


Space LODGeometry Properties

(Semantic LOD)BIM data GIS data Shape

Outdoor

LOD0 - Only terrain data DEM+orthoimage

None

LOD1

Boundary model Prismatic buildings Virtual texure

DEM+orthoimage Prismatic buildings Virtual texture

General properties

LOD2 Boundary model Simple roof structures Photorealistic texture

DEM+orthoimage Simple roof structures Photorealistic texture

Floor specific properties

LOD3 Boundary model +Parametric model Representation of precise Object Photorealistic texture

DEM+orthoimage Representation of precise Object Photorealistic texture

Exterior properties Facilities’ exterior

properties

Indoor + Outdoor

LOD4 Boundary model +parametric model Building envelope

DEM+orthoimage Representation of precise Object Photorealistic texture

Building envelope properties

Indoor

LOD5 Parametric model Building envelope

- All properties of

buildings

LOD6 Furniture, MEP model Irregular shaped objects

- All properties of

buildings

Designing Level of Detail(LOD)

Newly defined LOD for BIM on GIS based on CityGML and BIM data type


Simplification

Hierarchical LOD generation throughout applying simplification algorithm

Coarse Fine

LOD 2 LOD 3 LOD 4 LOD 5

LOD 1 LOD 2 LOD 3 LOD 4

Simplification of building inside Simplification of building envelope

LOD 1

Building inside objects simplification and LOD creation

Building outside objects simplification and LOD creation

HierarchicalData Structure

Data structure throughout spatial indexing based on Octree

Data Streaming

High speed rendering throughout data streaming and visualization

Spatial division method based on Octree for spatial query about building objects

Applies Octree to all LOD including interior and exterior

Proper LOD level display from screen division

Improving rendering speed throughout loading necessary data

Multi-threading Efficient memory resource

management

Best Screen Division

Hierarchical LOD

Effective Memory Mgmt.

Data Search/Compression/

Sending

Cont. Screen Display

Technology for Rapid Display

Simplification, Hierarchical, and Data Streaming are required for rapid display.


Technology for Rapid Display

G3D format G3D stands for Gaia3D Defined and developed by Gaia3D For rapid processing of BIM data for visualization Adopts block/reference concept: Generated geometries is defined as blocks

and all objects referring to blocks is defined as reference.

objects in BIM geometries in G3D objects in BIM data in G3D

blocks

reference info listobject1 → block1 & coordinate conversion info.object2 → block1 & coordinate conversion info.object3 → block1 & coordinate conversion info.object4 → block2 & coordinate conversion info.object5 → block2 & coordinate conversion info.object6 → block3 & coordinate conversion info.

＋

object1

object2

object3

object4

object5

object6

object1

object2

object3

object4

object5

object6

Block/Reference concept


BIM/GIS Interoperability Platform

Application Plug-in

Client

Server

DBMS

Data

Facility Manager Disaster Manager Energy Manager

Desktop 3D Viewer BIM Viewer Web Client

3D BIM/GIS Object Server

Vector Server Raster Server

Spatial DBMSGeometry

Attribute

BIM/GIS Model CityGML + MEP IFC BIM

System Architecture for BIM/GIS Interoperability Platform

For interoperable BIM on GIS platform, complicated system is required.


PostgreSQL DB

PostGIS

BIMServer.org

ORM Framework(Hibernate)

Java Network Framework(Netty)

Open APIs

Berkeley DB

GIS Server(GeoServer)

BIM/GIS Web Server

Batch Module

GIS Data Files(Raster, Vector)

BIM Data Files(Geometry)

WMS WFS TMS

Client World Wind Java

Other Service Applications(FMS, BMS…)

Desktop BIM/GIS Viewer Web Browser(Applet) Mobile App

Server

Data

Play FrameworkHTTP

Platform Architecture

Target platform should provide accessibility, interoperability, scalability, and compatibility.

Technology - Client:How does BIM on GIS look like?


3D GIS

BIM Viewer

World Wind Java for 3D GIS World Wind is an open-source (released under the NOSA license) virtual globe developed by NASA and the open source community for use on personal computers. Old versions relied on .NET Framework, which only ran primarily on Microsoft Windows. The more recent Java version, World Wind Java, is cross platform. World Wind Java is a Software Development Kit (SDK) which is aimed at developers and is not a standalone virtual globe application in the style of Google Earth.

3D GIS + BIM

Seamlessly connecting indoor and outdoor Interactively viewing inside and around the

building Easily searching properties of the building

Client Development

Out target is to integrate BIM data into 3D GIS data.


Client Development

Providing satellite image/aerial photo service using WMS (Web Map Service) from GIS server

NASA Blue Marble Imagery, I-cubed Landsat Imagery, Aerial Photo(12cm Spatial Resolution)


Client Development

Displaying inside and outside of building via BIM/GIS interoperability service Displaying BIM data with relative coordinate on absolute coordinate based WWJ

based on georeference information of spatial data link model(G3D)


Client Development

BIM data(IFC) visualization – Visualizing inside and outside building

Case Study:Who uses BIM on GIS open platform?


Basic Property Mgmt.

Facility Maintenance

Specific Information

Management

3D Visualization of Building Inside

Efficient facility management system for Antarctic King Sejong Science Station Interactively viewing inside and outside of facilities Conveniently editing properties of features Comparing and Analyzing features for better maintenance Easily monitoring current status of objects and features Providing virtual experience and advertising the station to the public

KOPRI(KOrea Polar Research Institute)


Overall viewing of all building in the station 34 small and medium sized buildings



Possible to look outside from the inside and inside from outside



Sliding all objects of a building



Spatial query to search objects with some conditions



Big sized machines



Movie Clip


Next projects(Hope!!!)


Antarctic Jang Bogo Station Starts operating in 2014 Mainland in the Antarctic Located in Terra Nova Bay in Northern Victoria Land 4,500km from King Sejong Science Station and 350km

from McMurdo station(USA)

Araon, Icebreaker Launches in 2009 Specially designed vessel to navigate ice covered polar

regions with a powerful propulsion unit and strengthened body

Equips state-of-the-art research equipment conducting such as geophysics, biology, oceanography, etc.

Applications:Where can BIM on GIS be used?


Monitoring system via comparing BIM data with GIS data

Recognizing changed areas throughout overlapping and comparing BIM data and GIS data


Providing BIM and GIS data to users in real-time based on cloud environment(Geospatial information + Property information)

Cloud based real-time information providing service


Determining direct sunlight area inside buildings via BIM on GIS service Temperature simulation inside building for Energy Management

Direct sunlight and temperature modeling inside buildings


Efficient facility management throughout analyzing and comparing current BIM and GIS data with past BIM and GIS data

Efficient Repair and Replacement for line, pipes, lights, tiles, and so on of the facility

Facility Management


Security, Virtual construction, Navigation throughout integration and connection of 3D virtual model and real data

Augmented Reality

Security Navigation

Virtual Construction Virtual Remodeling


Fast and precise analysis by overlapping analysis of data from various fields

Overlapping analysis with various data

In short,

“BIM meets GIS, enhancing the power

of BIM.”

Design and Implementation of BIM and GIS Interoperability Open Platform

16th June 2014HONG, Chang-Hee(KICT)PARK, Heegu(Gaia3D Inc.,)

Design and Development of BIM on GIS Interoperability Open Platform

Software

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