ViewSHED is an open-source API for computing the visible area given a location and elevation.

this is a project to explain how to realize viewshed-analysis

PDERL/XPDERL algorithm test

A python toolbox for ArcGIS designed for creation and analysis of Lines of Sight. The tool provides new functionality especially in analyzing of Line of Sight. The toolbox uses Python 2.7 as distributed with ArcGIS 10.3.

Cpp Library to calculate Viewshed based on GDAL with comamnd line and GUI tools using Qt5.

A reasonably fast GPU accelerated viewshed generator

Several scripts to automatize observation points from building in order to calculate their field of view

dem viewshed (line-of-sight) analysis tool

A web map application for investigating area visible from the peaks of Hong Kong

Add-In for ArcGIS 2.x which aims to add support for visual magnitude viewsheds

A web map application for investigating areas visible from the peaks of Hong Kong

Simple, intuitive command line utility for generating very large line-of-sight & terrain-aware viewsheds for Google Earth or equivalent viewers

Python bindings for viewshed library: https://github.com/JanCaha/cpp-viewshed-library

This repository contains the data and supplementary materials for the article titled "Generating Viewsheds Based on the Digital Surface Model (DSM) and Point Cloud".

Standalone port of the grass.r.viewshed function

Spatial DECM is a lightweight browser-based map viewer for spatial data. Users can upload supported files directly in the webpage, visualize them on top of a dark CartoDB basemap, edit uploaded layers, draw new features, and manage multiple layers independently.

Interactively visualize the impact on views for proposed new or updated buildings

Tool to calculate proportion of sky visible above a threshold elevation using digital surface models