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IOCA FS45 as an Output Format for Geographic Information Systems (GIS)

IP.com Disclosure Number: IPCOM000014834D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-20
Document File: 1 page(s) / 42K

Publishing Venue

IBM

Abstract

Unique characteristics of the newly defined Function Set 45 (FS45) in the IBM Image Content Object Architecture (IOCA) enable more efficient map generation. This print datastream format closely parallels the native data formats used in GIS. The format allows for high levels of data reuse at the printer. The format also ensures data integrity and allows for selective data availability.

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IOCA FS45 as an Output Format for Geographic Information Systems (GIS)

    Unique characteristics of the newly defined Function Set 45 (FS45) in the IBM Image Content Object Architecture (IOCA) enable more efficient map generation. This print datastream format closely parallels the native data formats used in GIS. The format allows for high levels of data reuse at the printer. The format also ensures data integrity and allows for selective data availability.

    In a typical GIS map generation process, there are multiple input data layers representing multiple views of the same surface area. For example, aerial photographs, vegetation patterns determined from infrared satellite images, land use regions, text annotations, and transportation networks may all be present in the same map. Which data layers are presented and the order of presentation is dictated by how the hardcopy map will be used . Returning to the example, all users may want the aerial photograph at the base as a visual reference. Scientists may want to overlay vegetation patterns in turn overlaid by annotations to communicate findings with other scientists. For the same surface area, city planners may want to view land use regions overlain by transportation networks to project future growth. With IOCA FS45, each data layer can become a separate image content. Which data layer overlays which can be specified by the order in which the contents are defined. The external resource mechanisms in FS45 also can be extended so that an external resource specifies the order of contents and their offsets into the image, analogous to the way multiple tiles can be managed within each content. External definition also allows for subsets of all the contents stored in a master map to be selected. The advantage gained by multiple contents is that a single master digita...