Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Cartographic vision
1. The cartographic vision
Ed Parsons <ed.parsons@ordnancesurvey.co.uk>
Chief Technology Officer
October 2005
2. Ordnance Survey - key facts
There is much more to Ordnance Survey than you might think...
Market leader with more than 200 years of mapping expertise
Data underpins around 10% of Great Britain's economic
activity
Financed through data licensing rather than direct funding
from taxpayers
More than 50% trading revenue comes from non-public sector
customers
At the forefront of the drive to provide intelligent geographical
information
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8. Database centric cartography
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9. Database centric cartography -
Ed’s golden rule 1
“Separate
representation
Ordnance Survey Land-Line
from data”
Ordnance Survey MasterMap
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10. Database centric cartography
• Geometry is just an attribute !
• Multiple geometry's associated with a single feature
• Multiple cartographic representations associated with each
feature
Feature Geometry’s Representations
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13. Project “Phoenix”
• Multi-Million Euro investment programme to
allow seamless object editing of core Digital
Landscape Model
• Supports Long Transactions
• Basic service orientated architecture
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14. Job Management Tool
Product
Store
Editor
Transaction Service
Product
Adaptor
Generalisation
Agent
Maia
Core DLM
Archive
Derived
DLM
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15. Cascading DLM’s
DCM Production
DLM 250K ?
DCM Production
DLM 100K ?
DCM Production
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Source DLM
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16. Generalisation
• Modifying the relative location and geometry of features
• A difficult problem to automate
• Current ‘best” solutions rely on AI systems e.g. LaserScan Clarity
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17. Conclusions
• Database centric cartography requires an shift in organisaition
thinking
• Huge benefits from deriving products from a “single source of
truth”
• New ESRI cartographic representation tools are a massive step
forward
• Generalisation is still a difficult problem
• Operational solutions must support interoperability between
systems
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18. Thank you..
presentation available at www.edparsons.com
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