Spatial Data Modelling: Trans as long as mation of OS MasterMap to 1:250 000 scale database Structure Introduction: Scale & Pattern Art in addition to Science of Cartography Current Research

Spatial Data Modelling: Trans as long as mation of OS MasterMap to 1:250 000 scale database Structure Introduction: Scale & Pattern Art in addition to Science of Cartography Current Research www.phwiki.com

Spatial Data Modelling: Trans as long as mation of OS MasterMap to 1:250 000 scale database Structure Introduction: Scale & Pattern Art in addition to Science of Cartography Current Research

Walters, Sarah, Meteorologist has reference to this Academic Journal, PHwiki organized this Journal Spatial Data Modelling: Trans as long as mation of OS MasterMap to 1:250 000 scale database EEO- Hutton Club Seminar Series 23 Nov 2007 Omair Zubair Chaudhry Institute of Geography University of Edinburgh O.Chaudhry@sms.ed.ac.uk Structure Outline: Introduction: Scale in addition to Geographic Phenomena Generalisation: Model & Cartographic Methodology: Database Trans as long as mation Results, Evaluation in addition to Implementation Conclusions Introduction: Scale & Pattern

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Introduction: Need of Generalisation Art in addition to Science of Cartography Current Research 1:250,000 The Challenge: Phenomena at 1:250,000 from OS MasterMap Ordnance Survey MasterMap (Sourced from 1:1250 & 1:10,000 mapping) Objectives To demonstrate the utility of the trans as long as med database To demonstrate importance of relationships in terms of database trans as long as mation H in addition to ling large volumes of data

Critical Factors of Model Generalisation Target Data Model Classes of Target Data Model Source Data Model Source Database: OS MasterMap Topography Layer

Objects in addition to Relationship Semantic Relationships: Taxonomic Relationships ‘is-a’ Objects in addition to Relationship Partonomic Relationships ‘part of’ Conditions in addition to Constraints Model generalisation is a application in addition to scale dependent process. Effect the parameter settings of the output classes Topological Consistency Geometrically (space exhaustive) in addition to thematically partitioned.

Operation Aggregation Methodology Container Boundaries Container Boundaries as long as composite Classes of Target Data Model: Settlement Forest Hills in addition to Ranges

Buildings to Settlement Settlement Container Boundary Settlement Container Boundary

Settlement Container Boundary Modelling Citiness 50 closest buildings Settlement Container Boundary Provided Settlement Container Boundary

Seeing Wood from Trees Forest Container Boundary Forest Container Boundary Area Patch Methodology (Müller in addition to Wang, 1992) If >FT then Exp in addition to (eq 1) Else Check density If density >FT Exp in addition to (eq1) Else Contract (eq1) ci = ai/(pi/4) Eq 1

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Forest Container Boundary Mountains from Mole Hills Hill / Range Container Boundary

Absolute Height Above 150m Hill / Range Container Boundary Prominence of a Summit Hill / Range Container Boundary Morphology (Wood 1996)

Conclusions “Generalisation is more than just mimicry of human cartographer, it is about modelling geographic space” Importance of meaning in addition to scale at different levels of detail Modelling not only needed to create visual output but also as long as spatial analysis, data mining in addition to meaningful interrogation of spatial data. Acknowledgements William Mackaness, Nick Hulton as long as their constant support. Ordnance Survey in addition to the University of Edinburgh as long as funding this research. Institute of Geography as long as all the required facilities in addition to a great working environment. Special thanks to Steve Dowers as long as help on Oracle Spatial. My family in addition to friends as long as their love in addition to support. And Specially grateful to

Walters, Sarah Meteorologist

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