Merge pull request #23 from ropensci/geojson

Added a new function called gist_map

Author: sckott

DESCRIPTION

@@ -9,7 +9,7 @@ Description: Work with GitHub gists from R (e.g.,
     your default browser, get embed code for a gist, list gist commits, and 
     get rate limit information when authenticated. Some requests require 
     authentication and some do not. Gists website: https://gist.github.com/.
-Version: 0.1.1.99
+Version: 0.1.2.99
 Date: 2015-01-16
 Authors@R: c(person("Ramnath", "Vaidyanathan", role = "aut",
     email = "ramnath.vaidya@gmail.com"),
@@ -25,6 +25,7 @@ Imports:
     jsonlite,
     httr,
     magrittr,
+    assertthat,
     knitr
 Suggests:
     roxygen2,

NAMESPACE

@@ -20,6 +20,7 @@ export(forks)
 export(gist)
 export(gist_auth)
 export(gist_create)
+export(gist_map)
 export(gists)
 export(rate_limit)
 export(rename_files)
@@ -29,6 +30,7 @@ export(star_check)
 export(unstar)
 export(update)
 export(update_files)
+import(assertthat)
 import(httr)
 import(knitr)
 importFrom(magrittr,"%>%")

R/gist_map.R

@@ -0,0 +1,36 @@
+
+
+#' Opens a full screen map after uploading a geojson file
+#'
+#'Takes a gist object and a input geojson file name and renders fullscreen map
+#' @param file Must be a geojson file
+#' @param gist_object An object of class \code{gist_id} generated by \code{gist_create}
+#' @param  browse Default is \code{TRUE}. Set to \code{FALSE} if you don't want to automatically browse to the URL.
+#' @export
+#' @import assertthat
+#' @examples \dontrun{
+#' library(ecoengine)
+#' x <- ee_observations(genus = "vulpes")
+#' ee_map(x, dest = "~/Desktop")
+#' gist_id <- gist_create(files = "~/Desktop/temp.geojson", browse = FALSE)
+#' gist_map(file = "temp.geojson", gist_id)
+#' 
+#'}
+gist_map <- function(file = NULL, gist_object, browse = TRUE) {
+    
+    assertthat::assert_that(has_extension(file, "geojson"))
+
+    render_url <- "https://render.githubusercontent.com/view/geojson/?url=https://gist.githubusercontent.com/"
+    point <- length(gist_object$history)
+    version <-gist_object$history[[point]]$version
+    full_path <- gist_object$history[[point]]$url
+    user <- gist_object$history[[point]]$user$login
+    commit <- gsub("https://api.github.com/gists/", "", full_path)
+    actual_commit <- strsplit(commit, "/")[[1]][1]
+    path <- paste(render_url, user, actual_commit, "raw", file, sep = "/")
+    if(browse) {
+        browseURL(path)
+    } else {
+        path
+    }
+}

man/gist_map.Rd

@@ -0,0 +1,29 @@
+% Generated by roxygen2 (4.1.0): do not edit by hand
+% Please edit documentation in R/gist_map.R
+\name{gist_map}
+\alias{gist_map}
+\title{Opens a full screen map after uploading a geojson file}
+\usage{
+gist_map(file = NULL, gist_object, browse = TRUE)
+}
+\arguments{
+\item{file}{Must be a geojson file}
+
+\item{gist_object}{An object of class \code{gist_id} generated by \code{gist_create}}
+
+\item{browse}{Default is \code{TRUE}. Set to \code{FALSE} if you don't want to automatically browse to the URL.}
+}
+\description{
+Takes a gist object and a input geojson file name and renders fullscreen map
+}
+\examples{
+\dontrun{
+library(ecoengine)
+x <- ee_observations(genus = "vulpes")
+ee_map(x, dest = "~/Desktop")
+gist_id <- gist_create(files = "~/Desktop/temp.geojson", browse = FALSE)
+gist_map(file = "temp.geojson", gist_id)
+
+}
+}
+