Issues #158 and #371 are about the same, but these didn't seem to get any feedback. I hope my example can help with this issue.

I have plotted my tree, and next to it, my heatmap. My colnames are long and plotted in vertical. There seems to be limited space for printing these colnames, and it cannot be fixed by changing margins, or hjust, or offset

I will try with a simplified example:

My nwk tree :

((((((Dasyurus_hallucatus:6.42500000,(Dasyurus_viverrinus:5.67801667,Dasyurus_maculatus:5.67801667)'14':0.74698333)'13':0.69500000,Sarcophilus_harrisii:7.12000000)'11':50.05805636,(Isoodon_macrourus:25.20000000,Macrotis_lagotis:25.20000000)'10':31.97805636)'19':4.45095364,((Phascolarctos_cinereus:35.00972500,Lasiorhinus_latifrons:35.00972500)'9':13.93526577,(((Potorous_tridactylus:23.93946385,(((Macropus_rufogriseus:7.72000000,(Macropus_rufus:7.31500000,Macropus_giganteus:7.31500000)'22':0.40500000)'8':0.00000000,Wallabia_bicolor:7.72000000)'6':1.35000000,Dendrolagus_lumholtzi:9.07000000)'30':14.86946385)'29':23.65610282,(Trichosurus_vulpecula:4.03000000,Trichosurus_caninus:4.03000000)'27':43.56556667)'35':0.66887333,(Petaurus_norfolcensis:32.91610000,Pseudocheirus_peregrinus:32.91610000)'43':15.34834000)'42':0.68055077)'40':12.68401923)'48':96.96857758,Canis_lupus:158.59758758)'51':18.32991064,(Ornithorhynchus_anatinus:45.62328444,Tachyglossus_aculeatus:45.62328444)'47':131.30421377);

My metadata:

metadata.example<-structure(list(Genus_species.number1 = c("1", "0", "0", "1", "1", "0", "0", "0", "1", "0", "0", "1", "1", "1", "0", "1", "0", "0", "0", "1", "1"), Genus_species.number2 = c("0", "0", "0", "0", "1", "0", "0", "1", "1", "0", "0", "0", "0", "1", "1", "1", "0", "0", "0", "1", "0")), class = "data.frame", row.names = c("Canis_lupus", "Dasyurus_hallucatus", "Dasyurus_maculatus", "Dasyurus_viverrinus", "Dendrolagus_lumholtzi", "Macropus_giganteus", "Macropus_rufogriseus", "Macropus_rufus", "Macrotis_lagotis", "Ornithorhynchus_anatinus", "Petaurus_norfolcensis", "Phascolarctos_cinereus", "Potorous_tridactylus", "Pseudocheirus_peregrinus", "Sarcophilus_harrisii", "Tachyglossus_aculeatus", "Trichosurus_caninus", "Trichosurus_vulpecula", "Wallabia_bicolor", "Isoodon_macrourus", "Lasiorhinus_latifrons"))

My plot:

tree <- read.tree("tree.nwk")

p0<-ggtree(tree, size=0.5,layout="rectangular")+ geom_tiplab(size=3.5,offset = 0.5,align=F)+ theme(plot.margin=margin(1,1,50,0))+ geom_treescale(fontsize=3.5, linesize=0.5, offset=0.5)

gheatmap(p0, metadata.example, offset = 105, color="white", colnames_position="bottom", colnames_angle=90, colnames_offset_y = 0, hjust=1, font.size=3.5) + scale_fill_manual(values= c("grey90", "grey20"))

And this is my result:

#I haven't figured a way to make the colnames display in full. In my real plot I have many columns in the heatmap, so verticality is a must. Italization would be fantastic too :-) Thank you for help!