French Cadastral Mapping

Vectorization, Georeferencing & Edgematching

Background and Objectives

The client is a leading French consultancy providing specialized services in Geomatics and land rights. They specialize in integrating land data for use in land development and infrastructure related projects. Magnasoft has a strategic partnership with the client and provides data conversion and integration services for land cadastre, utilities and Photogrammetry.

Key Aspects of the Project

• The project involves Vectorization, Georeferencing & Edgematching of cadastral maps.
  

Services Rendered and Methodology

The scope of work involved the following activities:

• Plotting and Pre-processingScans of section maps provided by client are plotted and checked for clarity
• Digitization
  Digitization using AutoCAD 2000 based on digitisation standards
  Involves line work digitisation with proper layerisation Quality Check for digitization & textual accuracy
• Georeferencing
  The maps are georeferenced using Helmert transformation routine developed by Magnasoft in AutoCAD
  Georeferencing carried out on grid (regular) and non-grid(non-regular) maps
• Quality ControlCADCORP-SIS tools used for checking errors in digitised drawings with regard to network, node placement and text attribution
• Creation of plot and coordinate files
  Edgematching of regular and non-regular maps

Tools Used

• MicroStationJ
• AutoCAD Map