AK.base.map: A base map of Alaska

In JenC36/JACtools: A Set of Relatively Useful Functions

A base map of Alaska

Description

This RData file contains a base map of Alaska created using ggplot2 based on downlaod of a google map Google's Terms of Service: https://cloud.google.com/maps-platform/terms/. Please cite ggmap if you use it! See citation("ggmap") for details.

Usage

ggmap::ggmap(AK.base)

Format

A ggplot object (map)

Details

The base map was generated using the following code:

AK.base <- get_map(location = c(lon=-150,lat=60), zoom = 3, scale = "auto", maptype = c("terrain"), messaging = FALSE, urlonly = FALSE, filename = "ggmapTemp", crop = FALSE, color = c("color"), source = c("google") )

The dataframe, locations.dat, has the latitude, longitude, and a site_type (A or B) for 100 randomly generated locations in Alaska. This dataframe is used in the example.

Examples

ggmap::ggmap(AK.base)

(ggmap::ggmap(AK.base.map) + ggplot2::geom_point(data=locations.dat, 
				aes(y=LATITUDE, x=(LONGITUDE), color=site_type, shape=site_type), size=3.0)
		+ ggplot2::scale_shape_manual('Site Type', values=c(16,17), guide=FALSE)
		+ ggplot2::scale_color_manual('Site Type',values=c('purple4','yellow'))
		
		+ labs(x='', y='',title='Site Locations', sep='')
		
		+ ggplot2::scale_x_continuous(limits = c(-190,-130), expand = c(0, 0)) 
		+ ggplot2::scale_y_continuous(limits = c(48,65), expand = c(0, 0))
		
		+ ggplot2::theme_bw()
		+ ggplot2::theme(legend.position="bottom")
		)

JenC36/JACtools documentation built on Oct. 20, 2024, 8:05 a.m.