Landscape Archaeology

Visibility index (total viewshed) for QGIS : finally there!

Welcome visibility index algorithm, a.k.a. total viewshed, now available in QGIS Visibility analysis plugin. This metric informs us on the size of the visual field for any location across a…

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Name the enemy: geographic projections in GIS

So, you have your data, you’ve installed a GIS program … and there we go: slope gradient – check, solar exposition – check, water drainage – check, visibility range –…

QGIS plugins

Distance and direction filters for QGIS Viewshed analysis

Viewshed analysis produces a model of visible areas from a chosen point, given a 2.5 or 3D elevation model. Most often, we model full range visibility, in all directions from…

QGIS plugins

Viewshed analysis in QGIS 3: a tutorial

Viewshed analysis denotes field of vision modelling in GIS jargon. The term is quite awkwardly borrowing its suffix from watershed, even if there is nothing being “shed”. Anyway, the term…

QGIS plugins

Ambient occlusion and sky-view factor for QGIS

Ambient occlusion is a concept developed in 3D modelling and visualisation which is used to evaluate the exposition to the ambient light of each model element. The idea is to…

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Analysing visual impact of high buildings: the Urkulu tower

Introduction A common problem in visibility analysis is to determine the visual impact of a tall building, for instance a skyscraper or a wind turbine. Now, there is a variety…

QGIS plugins

DEM shading algorithm for QGIS

I’ve been seeing on the net more and more of beautiful maps made in 3D software, Blender mostly. The reason for venturing into 3D: shadows mostly. While we do have…

QGIS plugins

Intervisibility analysis in QGIS: an archaeological tutorial

Intervisibility analysis tests the potential for visual connection between two observers. I say potential because visibility on landscape scale is often the question of a myriad factors (distance, atmosphere, signal…

QGIS plugins

Enhancing terrain cartography with natural shadows

QGIS algorithm for natural shadow modelling. Introduction Modelling natural illumination is quite difficult in software for digital cartography. Yes, we do have hillshading algorithms, but despite the name they do…

QGIS plugins

Topographic Position Index for QGIS

Topographic position index (TPI) is a method of terrain classification where the altitude of each data point is evaluated against its neighbourhood. If a point is higher than its surroundings,…

Visibility index (total viewshed) for QGIS : finally there!

Name the enemy: geographic projections in GIS

Distance and direction filters for QGIS Viewshed analysis

Viewshed analysis in QGIS 3: a tutorial

Ambient occlusion and sky-view factor for QGIS

Analysing visual impact of high buildings: the Urkulu tower

DEM shading algorithm for QGIS

Intervisibility analysis in QGIS: an archaeological tutorial

Enhancing terrain cartography with natural shadows

Topographic Position Index for QGIS

Archéologie en danger !

Landscape chambers: a tutorial

Kašteljeri između Mirne i Dragonje: prapovijesne utvrde i naselja

Landscape chambers: towards an archaeology of the cognitive landscape