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#
# This demo draw chromosome ideogram with padding between chromosomes,
# highlights, chromosome names, and link lines.
#
# Usage:
#
# library(RCircos);
# demo("RCircos.Link.Plot.Demo");
# ______________________________________________________________________
# <RCircos DEMO><RCircos DEMO><RCircos DEMO><RCircos DEMO><RCircos DEMO>
# Load RCircos library
# _______________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
library(RCircos);
# Load human cytoband data and link data
# _______________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
data(RCircos.Link.Data);
data(UCSC.HG19.Human.CytoBandIdeogram);
cyto.info <- UCSC.HG19.Human.CytoBandIdeogram;
# Setup RCircos core components:
# ________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
RCircos.Set.Core.Components(cyto.info, NULL, 10, 0);
# Open the graphic device (here a pdf file)
# _____________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
out.file <- "RCircos.Link.Plot.Demo.pdf";
pdf(file=out.file, height=8, width=8);
RCircos.Set.Plot.Area();
# Draw chromosome ideogram
# _____________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
message("Draw chromosome ideogram ...\n");
RCircos.Chromosome.Ideogram.Plot();
title("RCircos Link Plot Demo");
# Link lines. Link data has paired chromosome
# locations only in each row and link lines
# are always drawn inside chromosome ideogram.
# ____________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
message("Add link track ...\n");
link.data <- RCircos.Link.Data;
link.colors <- rep("blue", nrow(link.data));
rows <- seq(1, nrow(link.data), by=5);
link.colors[rows] <- "red";
link.data["PlotColor"] <- link.colors;
track.num <- 2;
RCircos.Link.Plot(link.data, track.num, FALSE);
# Close the graphic device and clear memory
# ___________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
dev.off();
message("RCircos Link Plot Demo Done!");
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