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R background image error
Hello, I am using the R script visual to plot a scatterplot of latitude and longitude on a floor plan. The floor plan is just a jpg in the background. The jpg is stored locally. It appears the...
I finally got this working with help from @boefraty.
I encoded the image as base64 (here for example: https://www.base64-image.de), then read it into my rscript, decoded, and used it as a raster. I am still looking for a more elegent solution for diplaying points on an interior space. Below is the code.
library(jpeg)
library(ggplot2)
library(base64enc)
b64img2<-"encoded string here"
rawimg<-base64decode(b64img2) img<-readJPEG(rawimg) rast<-grid::rasterGrob(img,interpolate=T) ggplot(dataset,aes(Longitude,Latitude))+annotation_custom(rast,xmin=-85,xmax=-84,ymin=45,ymax=46)+geom_point(aes(color=factor(DeviceName)),shape=1,show.legend=FALSE)+xlim(-85,-84)+ylim(45,46)+theme(panel.background=element_blank(),panel.border=element_blank(),axis.text.x = element_blank(), axis.text.y = element_blank(), axis.ticks = element_blank(),axis.title.y=element_blank(),axis.title.x=element_blank())
petermcnally The issue is most likely that you are using an R package (library) that isn't supported. Here is the limitation article with links to the exact supported packages.