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Meijers, E.J. (author), Romeijn, A. (author), Hoppenbrouwer, E.C. (author)
book 2003
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Van Oosterom, P.J.M. (author), Meijers, B.M. (author)
book chapter 2012
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Meijers, B.M. (author), Van Oosterom, P.J.M. (author), Quak, C.W. (author)
This paper deals with efficient data management of variable scale vector data. Instead of pre-building a collection of data sets on different scales, we create an index structure on the base data set (largest scale data) that enables us to extract a map at exactly the right scale the moment we need it. We present both the classic version of the...
book chapter 2009
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Ledoux, H. (author), Meijers, B.M. (author)
One of the simplest methods to construct a 3D city model is to extrude building footprints, to obtain "block-shaped" buildings. While the method is well-known and easy to implement, if the topological relationships between the footprints are not taken into account, the resulting city models will not necessarily be topologically consistent. As a...
book chapter 2009
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Van Oosterom, P.J.M. (author), Meijers, B.M. (author)
This paper presents the first true vario-scale structure for geographic information: a delta in scale leads to a delta in the map (and smaller scale deltas lead to smaller map deltas until and including the infinitesimal small delta) for all scales. The structure is called smooth tGAP and its integrated 2d space and scale representation is...
conference paper 2011
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Suba, R. (author), Meijers, B.M. (author), Van Oosterom, P.J.M. (author)
This paper focuses on 3D data structures supporting an alternative approach for creating 2D vario-scale maps. The smooth animated zooming functionality have lead us to investigate a volumetric representation of gradually changing vario-scale objects. In this paper, the principle of vario-scale maps with theoretical knowledge about 3D...
conference paper 2013
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Guerrero, J.M. (author), Zlatanova, S. (author), Meijers, B.M. (author)
Underground pipelines pose numerous challenges to 3D visualization. Pipes and cables are conceptually simple and narrow objects with clearly defined shapes, spanned over large geographical areas and made of multiple segments. Pipes are usually maintained as linear objects in the databases. However, the visualization of lines in 3D is difficult...
conference paper 2013
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Van Oosterom, P.J.M. (author), Meijers, B.M. (author)
conference paper 2012
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Meijers, E.J. (author), Lambregts, B.W. (author)
Polycentricity is often conceived to be the product of “a long process of very extended decentralization from big central cities to adjacent smaller ones, old and new” (Hall and Pain, 2006: 3). Accordingly, polycentric spatial development (as a process) is usually identified with a development towards a more balanced distribution of functions...
conference paper 2009
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Stoter, J.E. (author), Ledoux, H. (author), Meijers, B.M. (author), Arroyo Ohori, G.A.K. (author)
This paper presents the problem of the current separate treatment of levels of detail in city models. We propose a solution, detail the main principles, and present our initial results on the approach. We conclude with work in progress and explain the benefits of our approach.
conference paper 2012
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Meijers, B.M. (author)
In this paper, we will give a description of a design of a fat client and study some implementation issues, to use the tGAP structures for progressive data streaming. This is an experiment to validate the theory of Haunert et al. (2009). Furthermore this theory is extended and a solution is proposed to make the progressive data streaming more...
conference paper 2011
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Ledoux, H. (author), Meijers, B.M. (author)
Planar partitions—full tessellations of the plane into non-overlapping polygons—are frequently used in GIS to model concepts such as land cover, cadastral parcels or administrative boundaries. Since in practice planar partitions are often stored as a set of individual objects (polygons) to which attributes are attached (e.g. stored with a...
conference paper 2010
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Meijers, B.M. (author), Van Oosterom, P.J.M. (author)
This paper introduces the concept of a space-scale partition, which we term the space-scale cube – analogous with the space-time cube (first introduced by Hägerstrand, 1970). We take the view of ‘map generalization is extrusion of 2D data into the third dimension’ (as introduced by Vermeij et al., 2003). An axiomatic approach formalizes the...
conference paper 2011
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Van Oosterom, P. (author), Meijers, M. (author)
This paper presents the first true vario-scale structure for geographic information: a delta in scale leads to a delta in the map (and smaller scale deltas lead to smaller map deltas until and including the infinitesimal small delta) for all scales. The structure is called smooth tGAP and its integrated 2D space and scale representation is...
conference paper 2012
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Stoter, J.E. (author), Meijers, B.M. (author), Van Oosterom, P.J.M. (author), Grunreich, D. (author), Kraak, M.J. (author)
conference paper 2010
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Meijers, M. (author), Stoter, J. (author), Van Oosterom, P. (author)
conference paper 2012
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Stoter, J. (author), Ledoux, H. (author), Meijers, M. (author), Arroyo Ohori, K. (author), Van Oosterom, P. (author)
As explained in van Oosterom & Stoter (2012), the nD modeling approach allows us to include different aspects of geo-information in spatial modeling at a fundamental level, i.e. by treating these aspects as additional (geometric) dimensions. This paper explains how nD data models and data structures may solve the issues of redundancy and...
conference paper 2012
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Peters, R.Y. (author), Ledoux, H. (author), Meijers, B.M. (author)
Depth-contours are an essential part of any hydrographic chart|a map of a water-body intended for safe ship navigation. Traditionally these were manually drawn by skilled hydrographers from a limited set of surveyed depth measurements. Nowadays this process of map making is shifted towards the digital domain, not in the last place because of the...
conference paper 2013
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Ledoux, H. (author), Arroyo Ohori, K. (author), Meijers, M. (author)
Although the validation of single polygons has received considerable attention, the automatic repair of invalid polygons has not. Automated repair methods can be considered as interpreting ambiguous or ill-defined polygons and giving a coherent and clearly defined output. At this moment, automatic tools are not satisfactory and repairing is thus...
conference paper 2012
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Stoter, J.E. (author), Meijers, B.M. (author), Van Oosterom, P.J.M. (author)
conference paper 2009
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