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GIS for 3D Object Generation,

Modelling, and Exploitation

Paul Hardy

Esri

ArcGIS has long understood 3D

• Multipatch data type in geodatabase

- 3D volumetric objects

- Collection of triangles, strips, fans, and rings

- Stores texture, colour, transparency, and lighting within the geometry

• Also DEMs, DSMs, TINs, …

• 3D vectors

• 3D symbology

2GIS for 3D - EuroSDR Southampton

See previous EuroSDR paper“From 2d to 3D at Esri”

3D Across the ArcGIS Platform

GIS for 3D - EuroSDR Southampton

Manage Multiscale 3D Models

Surface modeling

3D Analysis

Native lidar support

Share 3D scenes

3D on all Clients

ArcGIS for 3D Cities

3D Geodesign

3

What is ArcGIS for 3D Cities?Ready-to-use Workflows, Tools, Models and Sample Data for Urban Management

Check out the workflows now: http://bit.ly/esri3dcities


• 3D Cities Information Model

• Create 3D City Base Layers

• Build a 3D Campus Map

• Visualize 3D

• Understand Zoning

• Economic Analysis

- Solar potential, …

• Manage Public Safety Rule Packages

ETL/GPTools

3DCIM

4

http://bit.ly/esri-3dcities

3D Cities Information Model: Themes

Built Environment

- Created and actively managed by people

- Structures, utilities, transportation networks, installations

Legal Environment

- Defines restrictions on land use

- Land use zones, property ownership boundaries,

regulations

Natural Environment

- Naturally occurring features on, above, or below the

earth’s surface

- Land cover, subsurface geology,

atmosphere/climate/weather

GIS for 3D - EuroSDR Southampton 5

Built Environment: Buildings

• The Building (Footprint object) carries

most of the attribute information.

• BuildingShell represents the complete

outer shell in 3D:

- Procedural, or Measured

• BuildingShellParts can be used when

separate processes for roofs, walls, and

foundations are needed.


Connecting 2D and 3D Buildings

Built Environment: Building Interiors (LoD4)

• Building interior data:

- Building

- Floor

- Space

- Structure

- Entrance

• Used in analysis:

- Query (where/who)

- Routing

- Asset allocation


Seamless usage of interior/exterior data

Built Environment: Installations

• Street Furniture

- Fire hydrants

- Benches

- Bike racks

- Trash cans

- Kiosks

- Poles

• Vegetation

- Trees


Things in the city other than buildings streets and water

Legal Environment: Regulations

GIS for 3D - EuroSDR Southampton9

Parcel

SetbacksHeight

Attribute Type

Setback Front Min 5‘, max 15‘

Setback Sides Min 8‘

Roof Type Flat

Total Height Max 40‘

Site Coverage 0.6

FAR Max 1.2

Levels Above

Ground

Max 4

Units per

Parcel

Max 4

The Natural Environment


Atmosphere & PollutionWind & Weather

Land Cover Subsurface Geology

3D City Base LayersBuildings

Multiple Levels of Detail – LoD1


3D Buildings

11

3D City Base LayersBuildings

3D Buildings


Multiple Levels of Detail – LoD2

12

3D City Base Layers

Trees

3D Buildings


Trees

13

3D City Base LayersWater Bodies

Trees

Water Bodies

3D Buildings


3D City Base LayersBasemap Skin

Trees

Water Bodies

Basemap Skin

3D Buildings


3D City Base LayersTerrain

Trees

Water Bodies

Basemap Skin

Terrain

3D Buildings


3D City Base LayersForms a 3D basemap

Trees

Water Bodies

Basemap Skin

Terrain

3D Buildings


3DCIM Interoperable with CityGML


Use 3DCIM Use CityGML

Perform ArcGIS Analytics Exchange with Partners, Clients

Generate Procedural Content Provide Data in Open Infrastructure

Create High-Performance 3D

Visualisations

Satisfy Reporting Requirements

Manage & Maintain Data Sets

Lossless In/Out of 17 core CityGML Feature Classes


Building, BuildingPart

• Roof-, Wall-, GroundSurface

• Room

• BuildingFurniture

• IntBuildingInstallation

• BuildingInstallation

• Opening, Window, Door

• FloorSurface

• InteriorWallSurface

PlantCover

SolitaryVegetationObject

CityFurniture

TrafficArea

Address

WaterBody & Surface

LandUse

3D Cities Information Model in File GDB

Example Mapping for Building


Building LoD1

LoD2

LoD3

LoD4

Solid

GroundPlate

Wall

Roof

Ext.Installation, ..

InteriorWall

InteriorInst.

Room, ...

<<includes>>

<<includes>>

<<includes>>

Building

BuildingShellLevel: 1..4

BuildingShellPart

InteriorInst.

<<aggregated to>>

InteriorStructure

InteriorSpace

Esri Base Scenes

• Earth Scene

• World Landscape scene

• City Scenes

• Campus/Interior Scenes


3D City Base LayersArcGIS for Professionals Workflows

http://pro.arcgis.com/en/3d-gis/3d-cities/


http://pro.arcgis.com/en/3d-gis/3d-cities/build-3d-basemap/

http://pro.arcgis.com/en/3d-gis/3d-cities/build-3d-basemap/

http://pro.arcgis.com/en/3d-gis/3d-cities/

3D City Base LayersBuilding Height Tool

• Extruding footprints to LoD1

• Using DSM/DEM (from LiDAR)


3D City Base LayersTree Height Tool


Auto tree extraction from LiDAR plus ImageryResearch coming to fruition

Extracted millions of trees


Overview

Detail

LoD2 Building extraction

• Extracting roof shapes from DSM/DEM (from LiDAR)

• Two approaches being investigated

• Still at research stage


CityEngine - Procedural modeling3D model creation using rules / algorithms

iteratively refine a design by creating more and more detail

• Base geometry

• Procedural rules

Base geometry Final 3D modelIterative refinement

Realistic city in CityEngine

• Extruded buildings

• Generated details

• Textured facades

• Streets

• Furniture

• Trees


Web Scene in Browser App


3D Base Scene in Browser App


3D Base Scene for Thematic Analysis


ArcGIS 10.3 - Web Scene 2.0 – Streamed 3D

Item on ArcGIS Online

Mash-up of streaming 3D / 2D layers

3D Symbology

3D Labels

3D Scene Navigation

3D Environment

ArcGIS Desktop 3D at 10.3

• ArcGIS Pro - Integrated experience to create, manage, and explore data in 2D & 3D

- Create 3D data and scenes from 2D data

- Built-in rules for buildings and trees support urban and campus visualization and analytics


Work in 3D anywhere

Desktop Web 3D across the platformDevice

gis for 3d object generation, modelling, and exploitation€¦ · gis for 3d object generation,...

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