In WeiquanLuo/lab3team12: Converts shape geometry to lat-long format

knitr::opts_chunk$set(echo = TRUE)

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Package installation

devtools::install_github("WeiquanLuo/lab3team12")

Load package

library(lab3team12)

Functions

`team_5`

The team_5 function was written by Kellie. It was created based on the solution for lab2 by group 5.

The function has two input values.

file: This is the shape file with .shp extension that will be converted to a dataframe. It is a file path in the form of a character string (ends in .shp).
tolerance: This controls how much the shape file is thinned. The default is 0.1.

`team_10`

The team_10 function was written by Hao. It was created based on the solution for lab2 by group 10.

The function has two input values.

file: This is the shape file with .shp extension that will be converted to a dataframe. It is a file path in the form of a character string (ends in .shp).
tolerance: This controls how much the shape file is thinned. The default is 0.1.

`team_11`

The team_11 function was written by Weiquan. It was created based on the solution for lab2 by group 11.

The function has two input values.

x: This is the list object (read by read_sf from package sf), which is originally a shape file with .shp extension. team_11 function will convert it to a dataframe
tolerance: This controls how much the shape file is thinned. The default is 0.1.

Example

Example shape file downloaded from gdam.

file=system.file("extdata", "gadm36_AUS_1.shp", package = "lab3team12")
tmp=team_5(file)

# or
tmp=team_10(file)

# or 
tmp=sf::read_sf(file)
tmp=team_11(tmp)

# plot 
library(ggplot2)
ggplot(tmp, aes(x=long,y=lat,group=group))+geom_polygon()