{"Package":"fisheye","Title":"Transform Base Maps Using Log-Azimuthal Projection","Version":"0.2.0","Authors@R":"c(person(\"Timothée\", \"Giraud\",\nemail = \"timothee.giraud@cnrs.fr\",\nrole = c(\"cre\",\"aut\"),\ncomment = c(ORCID = \"0000-0002-1932-3323\")),\nperson(given = \"Luc\",\nfamily = \"Guibard\",\nrole = c(\"aut\")))","Description":"Base maps are transformed to focus on a specific location using an\nazimuthal logarithmic distance transformation.","URL":"https://github.com/riatelab/fisheye","BugReports":"https://github.com/riatelab/fisheye/issues","License":"GPL-3","Depends":"R (>= 3.5.0)","Imports":"sf","Encoding":"UTF-8","RoxygenNote":"7.2.3","Suggests":"covr, tinytest","NeedsCompilation":"no","Packaged":"2023-12-12 13:53:08 UTC; tim","Author":"Timothée Giraud [cre, aut] (),\nLuc Guibard [aut]","Maintainer":"Timothée Giraud ","Repository":"CRAN","Date/Publication":"2023-12-12 14:10:02 UTC","repoType":"cran","tarballUrl":"ftp://cran.r-project.org/pub/R/src/contrib/fisheye_0.2.0.tar.gz","jsonAuthors":[{"name":"Timothée Giraud","email":"timothee.giraud@cnrs.fr","maintainer":true},{"name":"Luc Guibard","email":null,"maintainer":false}],"readme":"\n# fisheye

\n\n\n\n![CRAN version](https://www.r-pkg.org/badges/version-ago/fisheye)\n[![codecov](https://codecov.io/gh/riatelab/fisheye/branch/main/graph/badge.svg)](https://app.codecov.io/gh/riatelab/fisheye?branch=main)\n[![R-CMD-check](https://github.com/riatelab/fisheye/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/riatelab/fisheye/actions/workflows/R-CMD-check.yaml)\n\n\nThe goal of fisheye is to create base maps focusing on a specific\nlocation using an azimuthal logarithmic distance transformation.\n\n## Installation\n\nYou can install the released version of `fisheye` from\n[CRAN](https://cran.r-project.org/package=fisheye) with:\n\n``` r\ninstall.packages(\"fisheye\")\n```\n\nAlternatively, you can install the development version of `fisheye` from\nGitHub with:\n\n``` r\nremotes::install_github(\"riatelab/fisheye\")\n```\n\n## Example\n\nThis is a basic example:\n\n``` r\nlibrary(sf)\n#> Linking to GEOS 3.11.1, GDAL 3.6.2, PROJ 9.1.1; sf_use_s2() is TRUE\nlibrary(fisheye)\nlibrary(mapsf)\n# Import dataset\nncraw <- st_read(system.file(\"shape/nc.shp\", package=\"sf\"), quiet = TRUE)\nnc <- st_transform(ncraw, 3857)\npar(mfrow = c(1,2))\nmf_map(nc, col =\"grey90\")\nmf_map(nc[51, ], add = TRUE, col = \"grey40\")\nmf_title(\"Original Map\")\n# transform the basemap\nnc_fe <- fisheye(nc, centre = nc[51, ])\nmf_map(nc_fe, col =\"grey90\")\nmf_map(nc_fe[51, ], add = TRUE, col = \"grey40\")\nmf_title(\"Log-Azimuthal Projection\")\n```\n\n

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\n\nSee a more detailed example\n[here](https://github.com/rcarto/fisheye-example/):\n\n![](https://raw.githubusercontent.com/rCarto/fisheye-example/main/gif/mob.gif)\n\n## References\n\n- Hägerstrand, T. (1957). Migration and Area: A Survey of a Sample of\n Swedish Migration Fields and Hypothetical Considerations of their\n Genesis. Lund Studies in Geography, Series B, Human Geography,\n Department of Geography, University of Lund, Lund.\n\n- Snyder, J.P. (1987). “Magnifying-Glass” Azimuthal Map Projections. The\n American Cartographer, 14:1, 61-68,\n \n\n- Fairbairn, D., & Taylor, G. (1995). Developing a variable-scale map\n projection for urban areas. Computers & Geosciences, 21:9, 1053-1064,\n \n\n- Boutoura, C., Tsioukas, V., & Tsorlini, A. (2012). Experimenting\n “fisheye-lens functions” in studying digitally particular historic\n maps. e-Perimetron (ISSN 1790 - 3769). 7. 111-123.\n \n\n- Roughan, M. (2017). Log-azimuthal maps.\n \n\n- Rivière, P. (2018). The Log-Azimuthal projection.\n \n\n- Jansen, T. (2018). “Magnifying-Glass” projections.\n \n\n- Sahasrabuddhe, R., Lambiotte, R., & Alessandretti, L. (2021). From\n centre to centres: polycentric structures in individual mobility.\n ","jobInfo":{"package":"fisheye","version":"0.2.0","parsingStatus":"success","parserVersion":2,"parsedAt":"2023-12-12T15:29:58+0000"}}

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