See <Bio::Graphics::Panel> and <Bio::Graphics::Glyph>.
DESCRIPTIONThis glyph works like the regular density but takes value data in Bio::Graphics::Wiggle file format:
reference = chr1 ChipCHIP Feature1 1..10000 wigfile=./test.wig;wigstart=0 ChipCHIP Feature2 10001..20000 wigfile=./test.wig;wigstart=656 ChipCHIP Feature3 25001..35000 wigfile=./test.wig;wigstart=1312
The ``wigfile'' attribute gives a relative or absolute pathname to a Bio::Graphics::Wiggle format file. The optional ``wigstart'' option gives the offset to the start of the data. If not specified, a linear search will be used to find the data. The data consist of a packed binary representation of the values in the feature, using a constant step such as present in tiling array data.
OPTIONSThe same as the regular graded_segments glyph, except that the following options are recognized:
Name Value Description ---- ----- ----------- basedir path Path to be used to resolve "wigfile" and "densefile" tags giving relative paths. Default is to use the current working directory. Absolute wigfile & densefile paths will not be changed. autoscale "local" or "global" If one or more of min_score and max_score options are absent, then these values will be calculated automatically. The "autoscale" option controls how the calculation is done. The "local" value will scale values according to the minimum and maximum values present in the window being graphed. "global" will use chromosome-wide statistics for the entire wiggle or dense file to find min and max values. smoothing method name Smoothing method: one of "mean", "max", "min" or "none" smoothing_window integer Number of values across which data should be smoothed. bicolor_pivot name Where to pivot the two colors when drawing bicolor plots. Options are "mean" and "zero". A numeric value can also be provided. pos_color color When drawing bicolor plots, the fill color to use for values that are above the pivot point. neg_color color When drawing bicolor plots, the fill color to use for values that are below the pivot point.
SPECIAL FEATURE TAGSThe glyph expects one or more of the following tags (attributes) in feature it renders:
Name Value Description ---- ----- ----------- wigfile path name Path to the Bio::Graphics::Wiggle file for vales. (required) densefile path name Path to a Bio::Graphics::DenseFeature object (deprecated) denseoffset integer Integer offset to where the data begins in the Bio::Graphics::DenseFeature file (deprecated) densesize integer Integer size of the data in the Bio::Graphics::DenseFeature file (deprecated)
BUGSPlease report them.
AUTHORLincoln Stein <[email protected]>.
Copyright (c) 2007 Cold Spring Harbor Laboratory
This package and its accompanying libraries is free software; you can redistribute it and/or modify it under the terms of the GPL (either version 1, or at your option, any later version) or the Artistic License 2.0. Refer to LICENSE for the full license text. In addition, please see DISCLAIMER.txt for disclaimers of warranty.