Unit: M10U01 Introduction to Participatory 3D Modelling
Support the spread of good practice in generating, managing, analysing and communicating spatial information
Module: [M10 - Participatory 3D Modelling]
Unit: [M10U01 –Introduction to Participatory 3D Modelling]
Glossaryfor the Unit
Unit M10U01– Introduction to Participatory 3D Modelling
Compiled by: Giacomo Rambaldi, CTA
Contour lines / Contour lines connect a series of points of equal elevation and are used to illustrate topography, or relief, on a map. They show the height of ground above Mean Sea Level (M.S.L.) in either feet or metres and can be drawn at any desired interval. / Natural Resources Canada
Depth contours or isobaths / Bathymetry is the study of underwater depth of the third dimension of lake or ocean floors. A bathymetric map or chart usually shows floor relief as depth contours or isobaths. /
Derived map / A derived map is a map created as the result of analysing, altering, or combining spatial information sourced from a pre-existing map, a series of maps and, in this case, a 3D model in a GIS environment.
Explicit knowledge / Explicit knowledge is the knowledge of which we are aware, have reflected upon and can easily capture in verbal, textual, physical or visual formats, and whichtransforms into information.
Geographic Information Systems (GIS) / This is acomputer-based system designed to collect, store, manage and analyse spatially referenced information and associated attribute data.
Geo-reference / This refers to a map or photo that has been geographically corrected so that every point on it shows an absolute location. For example, air photos and satellite images are geo-referenced to correct for scale distortions inherent in the process of collecting data through remote sensing.
Mental maps / Mental maps represent the perceptions and knowledge that an individual has of an area. Mental maps allow us to know “what is out there, what its attributes are, where it is and how to get there”. Mental maps are distinctive to individuals. They are not inclusive like a cartographic map with a constant scale, but consist of discrete, hierarchically-organised pieces determined by physical, perceptual or conceptual boundaries. / source: Wikipedia
Participatory 3D Modelling (P3DM) / P3DM is a participatory mapping method integrating indigenous spatial knowledge with data on elevation of the land and depth of the sea to produce stand-alone, scaled and geo-referenced relief models. Essentially based on local spatial knowledge, land use and cover and other features are depicted by informants on the model by using pushpins for points, yarns for lines and paints for polygons. On completion, a scaled and geo-referenced grid is applied to facilitate data extraction or importation. Data depicted on the model are extracted, digitised and plotted. On completion of the exercise, the model remains with the community. / Rambaldi and Callosa-Tarr, 2002
Participatory Learning and Action (PLA) / PLA is an umbrella term for a wide range of similar approaches and methodologies thatinvolve communities in self-help and development projects. The common theme to all these approaches is the full participation of people in the processes of learning about their needs and opportunities and in the action required to address them. / Participatory Learning and Action series, IIED
Scaling / Scaling is the act of measuring, arranging or adjusting according to a scale. / WordNet, PrincetonUniversity,
Spatial information (also known as geographic information) / Spatial information is any information that can be geographically referenced, i.e. describing a location or any information that can be linked to a location. / ANZLIC, glossary
Tacit knowledge / Tacit knowledge (sometimes referred to as “soft” knowledge) corresponds to knowledge of which we are not immediately aware and on which we base our day-to-day actions. Tacit knowledge is implicit in individuals or groups without the possessor necessarily realising it and it is difficult to communicate. The process of transforming tacit knowledge into explicit knowledge is known as codification or articulation. Tacit knowledge can be expressed and articulated through in-depth discussions and interactive exercises. / Wikipedia
Vertical exaggeration / Vertical exaggeration is a scale that is used in 3D maps, plans and technical drawings (cross-section perspectives). The exaggeration is used to emphasise vertical features, which might be too small to identify relative to the horizontal scale. /
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Unit Glossary
File name: M10U01_glossary.doc
Last modified on: 8 March 2010