I have a question about facet_wrap() in ggplot2. I am trying to make a graph that looks like this. I attach an example image 1.enter image description here

In image 1 it can be seen that there are two maps and each one has its legend and color scale. I would like to be able to do this with ggplot and the facet_wrap() function.

My problem is that because the data in the dataframe is very different, they have a lot of amplitude for each map, when plotting the scale it does not allow me to visualize it the way I want.

enter image description here

ggplot(dataframe,mapping=aes(x=lon,x=lat)) 
   geom_contour_fill((aes(z=hgt,fill=stat(level))) 
   geom_contour(aes(z=hgt),color="black",size=0.2) 
   scale_fill_distiller(palette = "YlOrBr",direction = 1,super=ScaleDiscretised) 
   mi_mapa 
   coord_quickmap(xlim = range(dataframe$lon),ylim=range(dataframe$lat),expand = FALSE) 
   facet_wrap(~nombre_nivel,scales="free", ncol =2)  
   labs(x="Longitud",y="Latitud",fill="altura",title = "campos")

my dataframe has a shape like this. Where the facets are determined by the level variable. In this case the dataframe has another variable which is temp instead of hgt, but it's just another name.

enter image description here

Thanks

CodePudding user response：

I think I've faced the alike problem building the two parts of the single map with two different scales. I found the package grid useful.

library(grid)
grid.newpage()
print(myggplot, vp = specifiedviewport)

In my case I built the first p <- ggplot() than adjusted p2 <- p ... with printing the two ggplots (p and p2) in two viewports. You can newly construct p2 with individual scale and print it in the grid. You can find useful information here.