viewscape - Viewscape Analysis

A collection of functions to make R a more effective viewscape analysis tool for calculating viewscape metrics based on computing the viewable area for given a point/multiple viewpoints and a digital elevation model.The method of calculating viewscape metrics implemented in this package are based on the work of Tabrizian et al. (2020) <doi:10.1016/j.landurbplan.2019.103704>. The algorithm of computing viewshed is based on the work of Franklin & Ray. (1994) <https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=555780f6f5d7e537eb1edb28862c86d1519af2be>.

Last updated 16 days ago

4.78 score 1 stars 10 scripts 168 downloads

quickPWCR - Quickly construct and rate large binary pairwised comparisons

A collection of functions for constructing large pairwised comparisons and rating them using Elo rating system with supporting parallel processing. The method of random sample pairs is based on Reservoir Sampling proposed by JVitter (1985) <doi:10.1145/3147.3165>.

Last updated 7 months ago

cpp

4.48 score 1 packages 1 scripts 158 downloads

streetscape - Collect And Investigate Street Views For Urban Science

A collection of functions to search and download street view imagery ('Mapilary' <https://www.mapillary.com/developer/api-documentation>) and to extract, quantify, and visualize visual features. Moreover, there are functions provided to generate Qualtrics survey in TXT format using the collection of street views for various research purposes.

Last updated 3 months ago

4.30 score 1 scripts 135 downloads

dsmSearch - DSM and LiDAR downloader

A collection of functions to search and donwload DSM (Digital Surface Model) and LiDAR (Light Detection and Ranging) data via APIs, including 'OpenTopography' <https://portal.opentopography.org/apidocs/> and 'TNMAccess' <https://apps.nationalmap.gov/tnmaccess/#/>.

Last updated 7 months ago

4.30 score 1 stars 165 downloads