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Computer Aided Design (CAD) Modelling and Mapping for Geographic Information Systems (GIS)

K Michael, 1st Edition, 84pp.

CONTENTS

Creation of Cadastral CAD models - Flowchart and accuracy assessment

Flow chart for creating models

Assessment and grading of data quality

Input of data from survey plans into separate CAD sub-models

Assigning boundary types to various levels/layers in the sub-model and overall model

Positioning of the CAD drawing of the sub-model onto the earth's surface

General comments on procedures

Mapping projections and CAD modelling

Science of Geodesy

Geodetic datums

Grid coordinates for the map projection

UTM projection calculations needed for constructing cadastral or other CAD models

UTM Zone boundaries

Alternate mapping projections to the UTM projection

Accuracy Assessment

When using Global Positioning Systems for cadastral modelling

Notes on liability and accuracy

Accuracies and distortions associated with the method of projection

Background to methodology and legal considerations for CAD modelling representing Cadastres

Background to legal aspects of land surveying and property law

Warranties, guarantees and potential professional liability associated with constructed Cadastral CAD model

Proposed warranty and/or guarantee

Potential uses and case studies

Cost effective parcel mapping for Geographic Information Systems in developing countries

Computer mapping, modelling, geographic information systems and land management

Presenting GIS information and computer mapping products