THE LANDSCAPE CONTEXT of the early 9th-century monument known as the Pillar of
Eliseg is interrogated here for the first time with GIS-based analysis and innovative spatial …

ABSTRACT Digital Elevation Models (DEMs) are important datasets for modelling the line of
sight, such as radio signals, sound waves and human vision. These are commonly analyzed …

3D WebGIS systems have been mentioned in the literature almost since the beginning of the
graphical web era in the late 1990s. The potential use of 3D WebGIS is linked to a wide …

This paper reports on the progress in the field of total viewshed computation, which was
made by the joint efforts of several Slovak and Czech research institutions. The result of the …

The 3D perception of the human eye is more impressive in irregular land surfaces than in flat
land surfaces. The quantification of this perception would be very useful in many …

Computing a viewshed for a space (a polygon), rather than a single location (a point),
requires analysis of the maximum terrain extent observable from any location within the …

The selection of the minimal number of observers that ensures the maximum visual
coverage over an area represented by a digital elevation model (DEM) have great interest in …