Converts a per-chromosome-pair 2D track (rectangles or points) to indexed format (track.dat + track.idx). This reduces file descriptor usage from O(N^2) to O(1), which is especially beneficial for genomes with many contigs.
Examples
if (FALSE) { # \dontrun{
# Convert a 2D track to indexed format
gtrack.2d.convert_to_indexed("my_2d_track")
# Convert and remove old per-pair files
gtrack.2d.convert_to_indexed("my_2d_track", remove.old = TRUE)
# Force re-conversion
gtrack.2d.convert_to_indexed("my_2d_track", force = TRUE)
} # }