Welcome visibility index algorithm, a.k.a. total viewshed, now available in QGIS Visibility analysis plugin. This […]
Name the enemy: geographic projections in GIS
So, you have your data, you’ve installed a GIS program … and there we go: […]
Distance and direction filters for QGIS Viewshed analysis
Viewshed analysis produces a model of visible areas from a chosen point, given a 2.5 […]
Viewshed analysis in QGIS 3: a tutorial
Viewshed analysis denotes field of vision modelling in GIS jargon. The term is quite awkwardly […]
Ambient occlusion and sky-view factor for QGIS
Ambient occlusion is a concept developed in 3D modelling and visualisation which is used to […]
Analysing visual impact of high buildings: the Urkulu tower
Introduction A common problem in visibility analysis is to determine the visual impact of a […]
Archéologie des parcellaires : quelques réflexions sur l’exemple du Cantal
Le réseau de parcellaire qui recouvre les campagnes agricoles et pastorales est un sujet particulièrement […]
DEM shading algorithm for QGIS
I’ve been seeing on the net more and more of beautiful maps made in 3D […]
Intervisibility analysis in QGIS: an archaeological tutorial
Intervisibility analysis tests the potential for visual connection between two observers. I say potential because […]
Enhancing terrain cartography with natural shadows
QGIS algorithm for natural shadow modelling. Introduction Modelling natural illumination is quite difficult in software […]