Let’s explore some data
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: | rstudio |
| password: | rstudio |
At your browser rstudio:
source('/home/rstudio/setupLibs.R')
#wait the installs to be completed
Playing with the 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])
#http://geosampa.prefeitura.sp.gov.br/PaginasPublicas/downloadArquivoOL.aspx?orig=DownloadCamadas&arq=06_Habita%E7%E3o%20e%20Edifica%E7%E3o%5C%5CEdifica%E7%E3o%5C%5CShapefile%5C%5CSHP_edificacao_AGUA_RASA&arqTipo=Shapefile
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[1] = http://geosampa.prefeitura.sp.gov.br/PaginasPublicas/downloadArquivoOL.aspx?orig=DownloadCamadas&arq=06_Habita%E7%E3o%20e%20Edifica%E7%E3o%5C%5CEdifica%E7%E3o%5C%5CShapefile%5C%5CSHP_edificacao_AGUA_RASA&arqTipo=Shapefile
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
pointsEdificacao <- rgeos::gCentroid(Edificacao1, byid=TRUE)
proj4string(pointsEdificacao) <- Edificacao1@proj4string
plot(pointsEdificacao)