https://github.com/paleolimbot/ggspatial

Enhancing spatial visualization in ggplot2
https://github.com/paleolimbot/ggspatial

Last synced: 4 days ago
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Enhancing spatial visualization in ggplot2

• Host: GitHub
• URL: https://github.com/paleolimbot/ggspatial
• Owner: paleolimbot
• Created: 2016-07-11T21:06:12.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2023-08-18T00:33:14.000Z (over 1 year ago)
• Last Synced: 2024-08-30T20:04:36.052Z (6 months ago)
• Language: R
• Homepage: https://paleolimbot.github.io/ggspatial
• Size: 91.9 MB
• Stars: 368
• Watchers: 13
• Forks: 34
• Open Issues: 33
• Metadata Files:
  • Readme: README.Rmd

Awesome Lists containing this project

README

        
---

output: github_document

---

```{r, include = FALSE}

rosm::set_default_cachedir(system.file("rosm.cache", package = "ggspatial"))

knitr::opts_chunk$set(

  collapse = TRUE,

  dpi = 150,

  comment = "#>",

  fig.path = "man/figures/README-",

  out.width = "100%"

)

```

# ggspatial

[![ggspatial on CRAN](https://cranlogs.r-pkg.org/badges/ggspatial)](https://cran.r-project.org/package=ggspatial)

[![Coverage Status](https://img.shields.io/codecov/c/github/paleolimbot/ggspatial/master.svg)](https://app.codecov.io/github/paleolimbot/ggspatial?branch=master)

[![Lifecycle: stable](https://img.shields.io/badge/lifecycle-stable-brightgreen.svg)](https://lifecycle.r-lib.org/articles/stages.html#stable)

[![R-CMD-check](https://github.com/paleolimbot/ggspatial/workflows/R-CMD-check/badge.svg)](https://github.com/paleolimbot/ggspatial/actions)

Spatial data plus the power of the `ggplot2` framework means easier mapping.

## Installation

The package is available on CRAN, and can be installed using `install.packages("ggspatial")`. The development version can be installed via **remotes**.

```{r, eval=FALSE}

install.packages("ggspatial")

```

Or for the development version:

```{r, eval=FALSE}

install.packages("remotes") # if remotes isn't installed

remotes::install_github("paleolimbot/ggspatial")

```

## Introduction

This package is a framework for interacting with spatial data using **ggplot2** as a plotting backend. The package supports **sf** package objects, **sp** package objects, and **raster** package objects, and uses `geom_sf()` and `coord_sf()` to do most of the heavy lifting with respect to coordinate transformation.

```{r fig-layer-spatial-sf, warning=FALSE, message=FALSE}

library(ggplot2)

library(ggspatial)

load_longlake_data()

ggplot() +

  # loads background map tiles from a tile source

  annotation_map_tile(zoomin = -1) +

  

  # annotation_spatial() layers don't train the scales, so data stays central

  annotation_spatial(longlake_roadsdf, size = 2, col = "black") +

  annotation_spatial(longlake_roadsdf, size = 1.6, col = "white") +

  # raster layers train scales and get projected automatically

  layer_spatial(longlake_depth_raster, aes(colour = after_stat(band1))) +

  # make no data values transparent

  scale_fill_viridis_c(na.value = NA) +

  

  # layer_spatial trains the scales

  layer_spatial(longlake_depthdf, aes(fill = DEPTH_M)) +

  

  # spatial-aware automagic scale bar

  annotation_scale(location = "tl") +

  # spatial-aware automagic north arrow

  annotation_north_arrow(location = "br", which_north = "true")

```