[BioC] Plotting arbitrary lines at Gviz plotTracks

[Vinicius Henrique da Silva]

I would like to plot lines between two itens at different `AnnotationTrack`, or simple between two coordinates in my `Gviz`plot.

genes data.frame:
      start      end
     72529373 72690449
     75457896 75536848
     76867833 76922959
     75664651 75870596
     76958977 77024110
     72065147 72204484
     74198711 74199129
     74816044 74978179
     76758753 76864805
     77032585 77176916
     73574461 73704802

library(Gviz)
library(GenomicRanges)
ideoTrack <- IdeogramTrack(genome = "bosTau6", chromosome = "chr12", fontsize=14, ucscChromosomeNames=TRUE)
axisTrack <- GenomeAxisTrack(range = IRanges(start  = c(71959908, 76756891), end = c(72409907, 77206892), names = rep("Neighborhood", 2)), fontsize=14, showId = TRUE, cex.id = 0.5, col.id = "black")
aTgenes1 <- AnnotationTrack(genes, name = "Genes", genome ="bosTau6", chromosome ="chr12", showId = TRUE, stacking ="dense")
aTgenes2 <- AnnotationTrack(genes, name = "Genes", genome ="bosTau6", chromosome ="chr12", showId = TRUE, stacking ="dense")
plotTracks(list(ideoTrack, axisTrack, aTgenes1, aTgenes2), from = 71959908, to = 77206892, sizes=c(1,1,1,1), margin=40, littleTicks = TRUE)This above code result in this plot:





Considering
 the 11 plotted genes (the fourth gene is very small and hard to see), I
 have the follow interaction between the genes:
gene 1 -> gene 2 and gene 11
gene 3 -> gene 5
gene 7 -> gene 6
With this interaction I expect some final plot similar to this picture:


I had tried some approachs that works in normal plots but not to Gviz plots. Some ideas? Thank you very much!


Vinicius 
 		 	   		  
	[[alternative HTML version deleted]]