Transcript INTERNET MAPPING

INTERNET MAPPING
WEB-GIS Vendor Comparison:
ESRI, AUTODESK, INTERGRAPH.
John Kinnaird
Cheryl Bradley
Tope Bello
Fall 2004 Technology Assignment
INTRODUCTION:
OVERVIEW OF INTERNET GIS
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Internet GIS enables individuals and
organizations to communicate
geographically to their staff via the
internet or intranet.
It provides the users interactive query
capabilities.
It allows end-users to view geographic
data using their existing web browser
without GIS software, and
It makes it possible for GIS to be
integrated with other technologies.
SELECTION OF A WEB-GIS
SOFTWARE
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Which Internet GIS program do you
use?
Is it Server-side or Client-Side?
Or Both?
Do you use HTML client or Java
Client?
How good is the system
performance?
AIMS AND OBJECTIVES
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As a GIS Manager the aim is to
select a WEB-GIS software for a
Enterprise Wide GIS System.
The primary goal is to make
Geographic data available to the
public or to specific end-users.
Easy accessibility, security, and
interoperability.
EXISTING WEB-GIS SOFTWARE
VENDORS
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There are over 30 different Web
Mapping packages by different GIS
vendors.
The three most popular Web-GIS
software products used in our
comparison are:
• ESRI ArcIMS
• AutoDesk MapGuide
• Intergraph GeoMedia WebMap
CRITERIA FOR COMPARISON
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General Features and Capabilities
Advantages vs. Disadvantages
File Format and Database supported
Pricing
Case Studies
ESRI: ArcIMS
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ESRI is the first vendor of Web GIS capabilities.
ESRI has been in operation for over 30 years
It delivers an internet product that works in Java
environment.
It has the server and a client based GIS
component, for processing query and for
querying the database.
ArcIMS (Internet Map Server) is a multi-tier
architecture consisting of the presentation,
business logic and data storage tiers, in addition
to a set of applications for management.
ESRIS: ArcIMS Components
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ArcIMS
ArcIMS
ArcIMS
ArcIMS
Viewers
Application Server
Spatial Server
Manager
• These components make it possible for
the user to interact with the database,
i.e. querying, analyzing and editing.
ESRI ArcIMS Features
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ArcIMS Spatial Server processes request
for maps and attribute information.
ArcIMS Application Server tracks the
requests for information and distributes
them to the appropriate spatial server.
Manager combines all the components of
ArcIMS into one user interface.
The Client Viewers are in HTML and Java
web browsers.
Customization is in VB, ASP, C++, etc.
ESRI is a member of Open GIS
Consortium which fosters interoperability.
Intergraph GeoMedia WebMap
Components
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GeoMedia WebMap
GeoMedia WebMap Professional
GeoMedia WebMap Publisher
• These are components of Intergraph’s
Web-GIS software that perform the
preparation of the database, server, web
publishing of maps.
Geomedia WebMap Features
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Intergraph GeoMedia WebMap invented
Geographic Data Objects (GDO), which
creates a separate GDO server for each
GIS and CAD packages.
Intergraph GeoMedia WebMap supports
file formats from the following vendors:
Oracle, AutoDesk, FRAMME, Microsoft
Access, SQL, and ESRI file formats.
Geomedia WebMap Features
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GeoMedia Web Map Professional is not all
so different from the standard Web Map. It
performs routing, geocoding and enabling
remote access to the Database.
It provides vector and raster viewing
capabilities. It also performs rendering
and manipulation in the browser. This is
one of the advantages of the GeoMedia
Web Map.
It allows the user to click a feature and
view the attributes of the feature.
Geomedia WebMap Features
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GeoMedia Web Map Publisher allows the
creation of web site without the need for
programming.
Server-Side Operations deliver geographic
information to the end user through the
client-side components
Client-Side Operation include querying,
editing and adding data into the database
Autodesk: MapGuide 6.5
Components
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Autodesk started making GIS
packages in the 1990’s. incorporating
CAD into GIS.
The MapGuide is made up of the
following:
• MapGuide Author
• MapGuide Viewers
• MapGuide Server
MapGuide Features
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Author integrates GIS and CAD data and
helps design intelligent maps, while also
determining the amount of access and
level of interactivity to end users.
Viewers consist of
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Plug-in for Netscape
ActiveX Control for Microsoft Internet Explorer
Java Viewer for Sun and Macintosh OS’s
MapGuide LiteView, requiring no plug-in
MapGuide Features
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MapGuide Server runs under Microsoft
Windows NT
• Allows for scalable, fault-tolerant, 32-bit,
multithreaded architecture
• MapGuide server uses a GUI-based
administrator that configures start/stop
service, log file generation, and resource
security which is easy to learn and use to
quickly get up and running
• Handles simultaneous connections and is
scalable to take advantage of multiprocessor
architectures
Functions
ESRI ArcIMS
9.0
GeoMedia
WebMap 5.2
Advantages
Disadvantages
Can provide service with or
without a required plug-in
download
• Better functionality with
ArcIMS HTML Viewer
• Out-of-the box direct data
editing
• Designed to handle small
intranet sites as well as the
industrial scale needs of
enterprise systems
• Easily integrated with other
ESRI GIS software
• Slower web delivery; SDF vs. SHP
(holds extra information)
• Must first create an Image or
Feature Service
• Requires middle-ware XML
translation
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• Compatibility and
interoperability with other file
formats from various databases
without conversion
• Provides raster and vector
viewing
• Can be configured to allow as
many users to access the
datasets as is desired
There is no programming involved
for customization, this may affect the
security of the GIS database.
• Customization can add time and
cost to an initially expensive project.
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Functions
Advantages
MapGuide 6.5
Uses SDF to deliver data and
mapping which are much smaller
than Shapefiles for faster delivery
Provides ability for creating
complex buffers from disparate
feature types and creates single
buffer & can be joined or separate
For viewer software that requires
download and installation (notLiteView), there’s support for
Netscape, and ability to select
objects by rectangle, by radius, and
ability to select multiple objects on
different layers
Easy to add spatial and attribute
data to MWF files as layers and also
edit their properties. Also easy to
convert to MWX for use in LiteView
and XML.
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Disadvantages
MapGuide LiteView requires
customizations for better built in
functionality
There is no built in data editing;
a toolkit is needed
No redlining functionality out of
the box
The developer must be familiar
with HTML web design
No easy setup wizard for
beginning users
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Supported Data Formats
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ESRI ArcIMS supports file formats from the following major database vendors: Oracle, Autodesk
CAD format, TIGER files and SQL.
Autodesk MapGuide supports ESRI’s SHP and coverage files, Oracle, SQL, MapInfo Interchange
files, Microsoft Access, dBase, and more file formats in the Open GIS Consortium
Vendor Price Comparisons
Pricing
$30,000
$24,000
$25,000
$20,000
$15,000
$10,000
$10,000
$10,000
$6,500 $8,500*
$5,000
$0
ArcIMS
GeoMedia Web GeoMedia Web
Map
Map
Professional
MapGuide
Case Studies
ArcIMS
• The City of Oklahoma City ArcIMS Emergency Management Map Service contains
empty layers that are populated with information derived when an incident occurs
• MassMeansBusiness Web Site supports a site finder display and listing of all eating and
drinking establishments within a specified radius to provide a one stop portal for
Economic Development E-Government Services.
GeoMedia WebMap
• City-Parish of Baton Rouge, Louisiana, US:-Baton Rouge Provides Public Access to Land
ParcelData with Internet GIS.
• City of Winnipeg Water & Waste Department, Manitoba, Canada:- City of Winnipeg
uses Intergraph Technology to implement water and waste-water Geospatial
Infrastructure Management System.
Autodesk MapGuide
• MapGuide is used by the transportation departments Pima County and the City of
Tucson, Arizona to make GIS data available the general public and as well as other city
and county departments
• MapGuide powers the NavigateLA website to manage the task of design and
construction of all public facilities, including streets and sewers, in Los Angeles, and to
manage the city’s GIS.
• MapGuide powers the city of Vancouver’s VanMap which pulls together data from
multiple sources to allow access via the internet.
Conclusion
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ESRI ArcIMS relies more heavily on middleware to convert multiple types
of data, but these extra procedures of converting data formats may reduce
the performance of web mapping significantly
ESRI is a great choice due to its large market share in the GIS industry
and because it’s most easily integrated with ESRI GIS software
GeoMedia WebMap does not use proprietary software languages, therefore
there’s better interoperability across a range of file formats from various
databases and GIS vendors
Autodesk MapGuide uses SDF (spatial data file) to deliver data and
mapping to the end user, which allows for faster delivery than ESRI
Shapefiles and supports many formats without data conversion
A vendor’s client-side viewer may be limited to an HTML-based viewer
depending on the bandwidth of the user’s network
In general all these criteria, and more, factor into finding the right Web
Mapping package on the market and although it is a challenging
implementation the reward of Web mapping services is very significant
In the future implementation procedures of web mapping services should
be more simplified