Geodatabase: The ArcGIS Mechanism for Data Management
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Transcript of Geodatabase: The ArcGIS Mechanism for Data Management
Geodatabase: The ArcGIS Mechanism for Data Management
Sabata Mcatshulwa and Liezel Botha
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Patterns of an Enterprise GIS
Complete Integrated Systems
Data Management
Collect, organise &
exchange data
Planning & Analyses
Transform data in to actionable
information
Field Mobility
Get information into & out of the
field
Operational Awareness
Disseminate knowledge
where & when it is needed
Stakeholder Engagement
Get feedback and make informed decisions
ArcGIS Addresses common organizational needs
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Cartographic Representations
• For storing
� Complex symbology
� Rule-based
� In the geodatabase
Requires an ArcEditor or ArcInfo license
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Relationship feature classes
• Ensures Referential integrity
• Cardinality:
− one-to-one
− one-to-many
− many-to-many
• Rule based
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Raster Data
Raster Datasets
• Raster datasets can be:
− Individual raster datasets
− Mosaicked together
− Grouped into mosaic datasets
− Grouped into catalogs
Raster Data
Raster Catalog− Collection of raster datasets stored in
geodatabase
− A raster catalog is typically used to display adjacent fully overlapping, or partially overlapping raster datasets without having to mosaic them into one large raster dataset
Raster Data
Mosaic Datasets
• Store, manage, view and query small to vast collections of raster and image data
• Dynamic Mosaicking
• Optimized
Data is stored as a catalog and viewed as a mosaicked image
Demonstration
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Complex feature classes
Topology
• Relationships between coincident features
• Ensures data integrity
• Rule based
− Constrain how features share geometry
Complex feature classes
• Align To Shape
• Replace Geometry Tool
• Align Edge Tool
• Topology Edit Trace Tool
• Reshape multiple edges at once
Topology – New 10.1 Tools
Complex feature classes
Geometric Networks
• Model common networks and infrastructures found
in the real world
• Examples:
− Water distribution
− Electrical lines
− Gas pipelines
− Telephone services
− Rivers/Streams
• Network Tracing
− Upstream/downstream
− Finding connected/disconnected features
Demonstration
Presentation Outline
Cartographic Representations
Relationship feature classes
Raster Data
Complex feature classes
Versioning and Distributed GDB
Versioning and Distributed GDB
Versioning and Distributed GDB
Feature edit tracking
Editor
Tom
Bill
Joe
• name of the user who created it
• date and time it was created
• name of the user who edited it
• date and time it was last edited
Versioning and Distributed GDBWhat is a Version?
Versioning and Distributed GDB
Privileges Dialog
• See all privileges on a dataset
• Bulk grant and revoke to users and roles
Versioning and Distributed GDB
Scripting Administration
Versioning and Distributed GDB
Replication
Versioning and Distributed GDB
Provides the functionality to record and access
changes made to all or a subset of data in a
versioned geodatabase
Archiving
• What was the value for a specific attribute at a certain moment?
• How has a particular feature or row changed through time?
• How has a spatial area evolved over time?
Demonstration
Discussion