- Overview
- Initial Setup - Creating our workspace
- Let’s explore some data
- Exploring the Center of Mass
- Demo
- Next Steps
Overview
This guide will cover how to use the project geoFracker to help you to start using RStudio inside of a docker image to avoid too much struggle to install the required libs.
geoFracker is a extended version of rocker-org/hadleyverse RStudio distribution of docker with some custom libs to help you to process some Sao Paulo data offered at GeoSampa
Docker is easy way to pack software to easy distribution of softwares that works as micro services, as for example RStudio. Docker works well on windows, mac or linux.
Initial Setup - Creating our workspace
Pre-Requirements
The next steps will require you to have docker.
what is docker?
For details on how to install and setup docker check out this page: https://docs.docker.com/
For Windows and Mac check out: https://www.docker.com/products/docker-toolbox
Running your workspace
Running your workspace: followw the steps described here
docker pull it4poster/geofracker
docker run -d -p 8787:8787 -p 6311:6311 it4poster/geofracker
Open your browser at http://**dockerip**:8787/
Login:
| user | password |
|---|---|
| rstudio | rstudio |
Example of RStudio url running on dockers.
Running on docker machine: http://192.168.99.100:8787
Running on localhost(linux): http://localhost:8787
At your browser rstudio:
source('/home/rstudio/setupLibs.R')
#wait the installs to be completed
Let’s explore some data
Exploring a basic São Paulo Data:
- geofracker.downloadAndUnzipShp(URL) -> Allows you to download a shapefile for processing.
Edificacao = geofracker.downloadAndUnzipShp(saopaulo.data.edificacaoList[1])
Edificacao1 <- readOGR(dsn=Edificacao$dir[1], layer=Edificacao$shapeclass[1])
plot(Edificacao1)
#centers of edifications
pointsEdificacao <- rgeos::gCentroid(Edificacao1, byid=TRUE)
proj4string(pointsEdificacao) <- Edificacao1@proj4string
plot(pointsEdificacao)
saopaulo.data.edificacaoList: It is list of files available already embeed on this studio version to help you to explore the data. e.g: saopaulo.data.edificacaoList[1] is the “5CSHP_edificacao_AGUA_RASA” file.
Exploring the Center of Mass
Center of Mass is the center of the polygon(in this case an edification). We will use this property later to do some cool calculation.
pointsEdificacao <- rgeos::gCentroid(Edificacao1, byid=TRUE)
proj4string(pointsEdificacao) <- Edificacao1@proj4string
plot(pointsEdificacao)
Demo
Next Steps
For a more complete setup check this page where you can enable ftp access to the geofracker container.