Gurgaon, India: On the second day of India Geospatial Forum 2012 in Gurgaon, India, scholars discussed and explored current status and potential of 3D modelling, WebGIS and Open Source. At the outset, Francois Valois, Sr. Product Manager – Geospatial, Bentley Systems, explained how Bentley Systems is building futuristic infrastructure using 3D modelling. Valois also elaborated that how Bentley’s association with TerraSolid is enhancing the company’s capabilities in 3D modelling. He added that photogrammetry and LiDAR are complementary, help in making the most precise 3D models. He stressed that right from the beginning with its product like MicroStation, the company has optimum exploited potential of 3D modelling.
Dr. Hanuman Prasad, Asst General Manager, Infotech Enterprise, India, presented another aspect of 3D modelling. Through the paper, Geo-Technical Data management – A need for the Exploration Industry, he identified role of 3D modelling in mining industry. He explained that how a 3D model of mines can aid decision making, reduce cost, lower maintenance cost and overcome complexities involved in categorisation of technical data.
WebGIS and Open Source
Wide accessibility, no need of GIS software, enabling users to directly manipulate maps and GIS data over the Web are some of the key features which make WebGIS popular amongst users, observed, scientist Kapil Oberai from Indian Institute of Remote Sensing (IIRS). Through his paper, he explained how he developed open source multimedia-based WebGIS application for IIRS campus. Oberai also talked about Hugin, an open source panorama stitcher tool, which was used for creating panoramic images of IIRS which can be visualised through the application. In addition, he explained PTViewer 2.8: a java applet that can be used as a viewer for panoramic images.
N. Rama Kumar Acharyulu, Scientist, Advanced Data Processing Research Institute (ADRIN), Dept. of Space, Govt. of India, shared some of the very interesting observation. He observed: “Interesting mashup applications can be built using piping or wiring models to intermix or transform the input data. In regard to GIS mashups, map data providers like Google, Microsoft, Yahoo etc. suffice a general user. Public cloud based GIS providers offer capabilities to add local data, change symbology and build a query and analysis system. Visual programming based wiring or piping techniques help building a client-side mashup quickly.”
Murli Krishna Gurram, Asst Vice President, COWI India, make people acquainted with its WebGIS Business Solution. Its system architecture aims to implementing a distributed enterprise GIS deployed on a centralised server capable of handling mapping, geoprocessing and data management services. Gurram stated, “Distributed GIS services enable the end user to manipulate GIS data and maps interactively. The map services can directly interact with heterogeneous systems and platforms without the constraints of traditional client/server relationships. There is no difference between the client and a server. Every GIS node embeds GIS programme and geodata. Each GIS node can become a client or a server based on the task at hand. A client is defined as the requester of a service in a network while a server provides a service.”
Mahalakshmi Narayanan, Principal System Analyst, NIC-TNSC, India, addressed the topic, Mainstreaming GIS in e-Governance through Web Service in Tamil Nadu. She concluded that the act of mainstreaming GIS is a proof of concept that how a common unified GIS server can provide simple thematic services to unlimited number of applications, independent of platform and technologies. According to Narayanan, advantages of geospatial services oriented architecture include:
– Easy administration of maps (as the changes on maps would be required only once and in only one database).
– Since the map rendering is service oriented, backend technologies do not matter. Interoperability is achieved using XML technologies.
– Technology can be leveraged by application developers who have very little knowledge of GIS. It means that the development team from the concerned department need not be aware of the finer details of GIS technology.
– Fully compliant with the Open Geospatial Consortium standards.
Rashmi Raj, GIS-Specialist, JSYS-GOK, demonstrated the USPs of web-based Karnataka state Watershed Information System. It provides complete data of Karnataka state watersheds up to the micro-watershed level where user can get required information (spatially and non-spatially) via internet. To generate the information system, she used data from KSRSAC which consists of point, line & polygon themes. She also used LISS-IV + PAN satellite imagery with 5.8m spectral resolution spatial data. The system provides interactive search option, which include search by district, Taluk, watershed and IWMP status by districtTaluk. It also enables users to export search results in Excel format.
Source: Our Correspondent