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MIGRATING FROM ARCINFO WORKSTATION TO ARCGIS
By Vic Dohar, Natural Resources Canada
Digital Mapping Techniques ‘04
Scope
Managing datasets in a map production environment
No intention to create a data model or replicate NADM
Geodatabase used for map production Snapshot of current migration strategies from
workstation to ArcGIS (work in progress)
Current Map Production at GSC
A-series and Open File geology maps since 1994, 50 to 70 maps per year
Data is managed in the coverage model using ArcInfo Workstation 8.3
GEMS application Digital data adheres to Cartographic Digital
Standards (CDS) Stored/archived in ArcSDE (not in a
geodatabase)
Migrating to ArcGIS
Change in ESRI technology forces us to change
Geodatabases provide domains and custom topology, used to validate features
ArcGIS is not restricted to coverages model, various formats from various sources
ArcGIS provides connections to databases Open development for customizing ArcMap Tiered license: ArcView, ArcEditor, ArcInfo
Migration Goals
Develop a geodatabase schema for managing spatial geology data
Make use of domains for standardizing feature names and validating features
Produce similar maps with ArcMap as with workstation, faster and more efficiently
Migration Strategy
Three stages (ArcGIS Help):1. Use existing data with ArcMap
2. Data management and editing using the geodatabase
3. Convert to geo-processing tools, ArcGIS 9.0
Decided to bundle stages 1 and 2, due to available resources, training, and managing a production environment
What is a Geodatabase?
ArcGIS Help ESRI press
• Publications: Modeling Our World
Resources available from www.esri.com• Download sample geodatabases
Geodatabase Case Studies
Designing a Geodatabase
Several different methods1) ArcCatalog menus and wizards2) CASE tools using Visio (UML) 3) Geodatabase Designer (XML)
Experimented with importing existing coverages into a personal geodatabase.
Organizing data into manageable features
Geodatabase Designer
Export schema to XML. Edit, modify using an XML editor
XML schema can be imported or distributed Integrated with ArcCatalog Free!
Geodatabase for Map Production
Separate geodatabase schemas for bedrock geology data, surficial geology data and cartographic elements
Store datasets, simple features and tables Domains and topology used to validate
features Sub-types used with domains to
group/categorize simple features Use relationship classes to define relates
Surficial Units Feature Class
Single field used to differentiate geology polygon units
Surficial Geodatabase
Map with compound units and veneers
Surficial Unit Composition Table
Surficial Unit Composition Table
Surficial Legend Table
Surficial Unit Composition Table
Complex IDs Table
Description of relationship involving complex units for all surficial maps
Surficial Geodatabase
Labeling polygons using a table
Surficial Unit Label Table
How it all fits together!
MAPUNIT
MAPUNIT VENEER PRIMARY_UNIT SECONDARY_UNIT COMPLEX_ID
MAPUNIT MAPLABEL
LEGUNIT DESCRIPTION COMPLEX_ID DESCRIPTION
Feature class Unit labels table
Unit composition table
Legend table Complex ID table
1
* 1
1 1
* * * *
*
How it all fits together!
Expressed in relationship classes
How it all fits together!
Shown when performing a query or identify
Surficial Geology Topology
Topology can only exist for participating features within a dataset
Implementing two simple rules:1. Surficial units polygons must not overlap
2. Contacts must overlap boundary of surficial units
Geomorphology Line, Point and Area Features
Remaining surficial features are classified into point, line and area simple feature classes
Each of the feature classes contains a sub-type field used to classify or categorize the features
Features are assigned a coded value from a domain that pertains to the sub-type to which it belongs
Coded Value
Domain
Domains are propertiesof the geodatabase
Sub-Type Field
Sub-types are properties of the feature class
Geomorphology Line Feature Class
Coded value from domainSub-type
Making Maps with ArcMap
Style Files and Symbols
Symbolsets from Workstation that utilize custom fonts (IGL, TrueType) do not import into style files
All line, marker, and pattern symbols require to be created from scratch
Thus far have converted all shade colours, and most line and marker symbols
Created true type font of point symbols
Insert Word, CorelDraw, other files as objects Custom application for generating title block,
and recommended citation, and other surround information
Design specifications and content are XML based
Uses metadata that user enters in forms Ensures consistent high quality map product,
facilitates map production
Map Surround Generation
Legend Generation
Current legend generation using ArcInfo workstation is accomplished using a text file and an AML
Proposing to store legend information in an XML file
• Contain units, minerals, lithology, and symbols• Contain description as well as hierarchical levels
Currently developing a XML schema to store this information
Legend Generation
Design interface to populate XML file VBA script to render legend in ArcMap using
native graphics (boxes, lines, text, etc…) XML file is portable and can be used for other
applications
Connections to Databases
Connect to geochronology database to display point data• Script to generate graphic
• Not required to store age data Minerals database
• Use of table for labeling point data Field observations database, others ???
GSC lab # Elevation
Age Material
x Mn
Remaining Issues and Goals
The verdict is not in on a final geodatabase schema
Better labeling of features to avoid managing/editing annotation (Maplex)
Implement in map production Next year have all pieces/connections in place
(GDR, SDE geodatabase, NADM)
Acknowledgements
Parm Dhesi, GIS Specialist & SymbolsRoger MacLeod, GIS Specialist & SymbolsNorah Brown, ArcObjects & XMLDave Everett, GIS SpecialistSheila Hynes, GIS SpecialistBarb Szlavko, ArcSDE/Oracle AdminTerry Houlahan, ArcSDE/Oracle Admin
Vic Dohar Cartographic Applications Specialist Publishing Services Subdivision ESS Info Division Earth Sciences Sector Natural Resources Canada 601 Booth Street Ottawa, Ontario, Canada K1A 0E8 telephone: 613-943-2693 fax: 613-952-7308 email: vdohar@NRCan.gc.caweb: www.nrcan.gc.ca/ess/carto
Contact me at…
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