From 7c2a81351017de87a074e1b00f306e6d6167c8a4 Mon Sep 17 00:00:00 2001 From: Edzer Pebesma Date: Fri, 10 Jul 2020 08:33:41 +0200 Subject: [PATCH] change vignette --- vignettes/articles/intro.Rmd | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/vignettes/articles/intro.Rmd b/vignettes/articles/intro.Rmd index 31512218..c0d47503 100644 --- a/vignettes/articles/intro.Rmd +++ b/vignettes/articles/intro.Rmd @@ -10,11 +10,4 @@ knitr::opts_chunk$set(collapse = TRUE) library(s2) ``` -* S2LatLng points are always latitude-longitude -* internally represented as S2Points, 3-D unit vectors (geocentric) -* S2polyline; when is a polyline invalid -* S2Loop: rings get reordered (different starting point) -* rings are not closed -* polygons are properly nested rings (unlike e.g. MULTIPOLYGON) -* in addition to empty polygon: full polygon -* default polygon building: not oriented, assuming their area is less than `2*pi` +See vignette 7, "Spherical geometry in sf using s2geometry" of package sf.