Web Based Dynamic Cadastral Block Segmentation and Network Adjustment of Land Record for Modern Cadastre in Malaysia

摘要

The rapid development in spatial information infrastructures in many developed countries worldwide is parallel by a move to economic rationalism and micro-economic reform, both of which have had a major impact on the role of spatial data infrastructures. CCS concept allows the application of a rigorous network adjustment technique so that a unique pair of coordinates and their respective accuracy information can be defined for every cadastral boundary marks. In order to adjust a large cadastral network, segmentation of adjustment block must be carried out. Segmentation breaks a network into a series of blocks of manageable size which are treated individually in an initial phase and later recombined mathematically to account for between-block interaction. The processes are done manually. Dynamic segmentation will provide automatic selection of cadastral block based on cadastral control, certified plan and network geometry. Dynamic adjustment promotes the concept of regularly continually upgrading the coordinate value. Field work observation data and large cadastral network were adjusted using segmentation method and processing steps were carried automatically via web. Web based dynamic network adjustment program has been developed to run in an automated mode and can be made accessible online through internet. Interfacing programs are needed to control dynamic LSA engine, the automated mode, interfacing on the server, linking to the internet and interaction with the online users in the same time. Comprehensive results of the processing will be published on the web and send to a user. Dynamic network adjustment provides the means to rigorously and efficiently maintain the readjusted networks as new data is added in the future. The dynamic approach provides the means to upgrade the classical methodology to more productive. Dynamic network adjustment facilitates automated maintenance of large cadastral network on an on-going basis. Web based Dynamic LSA provides the capabilities for online and automatic data processing and analysis of results.