ananth mohan

VISUAL IMPACT ANALYSIS OF AN URBAN AREA USING ArcGIS

ENGINE 3D Analyst & Java

Under the guidance ofDr.S.Kaliappan

Professor in Civil Engineering, Institute of Remote Sensing

By,R.ANANTH (20031102)

K.MOHANRAJ(20031117) B.E. Geo–Informatics

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

OBJECTIVES

► Creation of virtual 3D model

►Creation of stand-alone GUI system

►Hosting in the Web based environment

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

METHODOLOGY

Stop

Data Collection

Creation of virtual 3D model

Application Development

Start

Data Preparation

Hosting in the Web Environment

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

3D VIRTUAL MODEL

Satellite image2D featureDatabase

Z factor DTM data

ArcScene

3D featureDatabase

3D Graphics

Final virtual3D Model

components

Photosdraped

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

Results of Objective 1

1. 2D Feature Database2. 3D Generated

3. Photos Draped 4. 3D Graphics added

Final Virtual 3D Model

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

Shape file Name Type

Campus boundary polygon

Roads polygon

Sidewalks polygon

Parking lots polygon

Buildings polygon

Trees and hedges point

Fences line

Light poles point

APPLICATION DEVELOPMENT

• ARCGIS ENGINE with 3D ANALYST (JAVA )IS USED

WHY JAVA ?WHY JAVA ?

Platform Independent Platform Independent

Easy to handle 3D data Easy to handle 3D data

Economical to deployEconomical to deploy

Easy portabilityEasy portability

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

APPLICATION LAYOUT

TOOLBARDATABASE

LAYER1

LAYER2

LAYER6

……………………

SCENE

QUERY SHELL

TABLE OF CONTENTS

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

APPLICATION LAYOUT

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

Application Object Model

Scene Application

TOOLBAR

EXPORT

EXPORT DATA

VRMLEXPORTER

SELECT

BY NAME BY HEIGHT

SCENEFEATURE LAYER

FEATURE SELECTION

QUERY SHELL

LABEL1 LABEL2 COMBO2 TEXTFIELDCOMBO1

SCENE GRAPH

VRML

TABLE OF CONTENTS

TABLE

CURSOR

ROW PROCESS QUERY

QUERY FILTER

BY DEPT.

FILE I/O

WORD

BASIC COMMANDS

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

GRAPHICAL USER INTERFACE

SELECTION QUERY:SELECTION QUERY:

1.Highlight the Building by name selection

2.Select based on its Height

3.Select based on the Department

4.Select the roads by width

EXPORT MENU:EXPORT MENU:

1.Export data to Word Document

2.Active Scene to VRML format (3D model)

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

OBJECTIVE 3

DISCUSSIONS

•Stand-alone system with support files included.

•Spatially view the virtual 3D model of Anna University

•Fire spatial and non-spatial queries

Fore-runner for various development projects in and around University campus

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

RECOMMENDATIONS & FURTHER DEVELOPMENTS

1. Aerial photo can be used for creating building features

2. Requires High end graphics system to have 3D viewing capability

3. Details inside each and every building can be modelled

4. Whole scene can be drapped as a single scene rather doing as a individual file

5. DSM layer can be used as a base thus the real terrain nature with all the elevations and depressions can be viewed

6. plugin to be installed inorder to view the model in WWW

7. This model size can further be reduced such that it can be easily loaded in the web environment

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

Ananth & Mohanraj, Geo-Informatics, CEG, AU

2D to 3D Conversion

2D features in Map 3D generated in

Scene

Ananth & Mohanraj, Geo-Informatics, CEG, AU

Photo Draping

3D Graphics

30th April Ananth & Mohanraj, Geo-Informatics, CEG, AU

SELECTION QUERY- Highlighting the Building