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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Bio::Graphics::Glyph::ruler_arrow \- glyph for drawing an arrow as ruler (5' and 3' are marked as label) .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& See L and L. .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" This glyph draws arrows. Label, if requested, will be 5' and 3' at both ends and tick scale is printed if no_tick_label option is set and tick option set. Depending on options, the arrows can be labeled, be oriented vertically or horizontally, or can contain major and minor ticks suitable for use as a scale. .SS "\s-1OPTIONS\s0" .IX Subsection "OPTIONS" In addition to the common options, the following glyph-specific options are recognized: .PP .Vb 2 \& Option Description Default \& \-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\- \& \& \-tick Whether to draw major 0 \& and minor ticks. \& 0 = no ticks \& 1 = major ticks \& 2 = minor ticks \& \-label 5\*(Aq at start, 3\*(Aq at end 0 \& above arrow \& \-both 5\*(Aq, 3\*(Aq above, 0 \& and 3\*(Aq, 5\*(Aq below arrow \& \-direction 0 = ruler is plus strand 0 \& \-1 = ruler is minus strand \& \& \-parallel Whether to draw the arrow true \& parallel to the sequence \& or perpendicular to it. \& \& \-northeast Force a north or east true \& arrowhead(depending \& on orientation) \& \& \-east synonym of above \& \& \-southwest Force a south or west true \& arrowhead(depending \& on orientation) \& \& \-west synonym of above \& \& \-double force\-doubleheaded arrow \& \& \-base Draw a vertical base at the false \& non\-arrowhead side \& \& \-scale Reset the labels on the arrow false \& to reflect an externally \& established scale. .Ve .PP Set \-parallel to false to display a point-like feature such as a polymorphism, or to indicate an important location. If the feature start == end, then the glyph will draw a single arrow at the designated location: .PP .Vb 2 \& ^ \& | .Ve .PP Otherwise, there will be two arrows at the start and end: .PP .Vb 2 \& ^ ^ \& | | .Ve .PP Scale: Pass in a externally established scale to reset the labels on the arrow. This is particularly useful for manually constructed images where the founding parameters of the panel are not 1\-based. For example, a genetic map interval ranging from 0.1 \- 0.3 can be constructed by first multiplying every value by 100. Passing .PP .Vb 1 \& arrow(\-scale=>100); .Ve .PP will draw tick marks labelled appropriately to your external scale. .SH "BUGS" .IX Header "BUGS" Please report them. .SH "SEE ALSO" .IX Header "SEE ALSO" Bio::Graphics::Panel, Bio::Graphics::Glyph, Bio::Graphics::Glyph::arrow, Bio::Graphics::Glyph::cds, Bio::Graphics::Glyph::crossbox, Bio::Graphics::Glyph::diamond, Bio::Graphics::Glyph::dna, Bio::Graphics::Glyph::dot, Bio::Graphics::Glyph::ellipse, Bio::Graphics::Glyph::extending_arrow, Bio::Graphics::Glyph::generic, Bio::Graphics::Glyph::graded_segments, Bio::Graphics::Glyph::heterogeneous_segments, Bio::Graphics::Glyph::line, Bio::Graphics::Glyph::pinsertion, Bio::Graphics::Glyph::primers, Bio::Graphics::Glyph::rndrect, Bio::Graphics::Glyph::segments, Bio::Graphics::Glyph::ruler_arrow, Bio::Graphics::Glyph::toomany, Bio::Graphics::Glyph::transcript, Bio::Graphics::Glyph::transcript2, Bio::Graphics::Glyph::translation, Bio::Graphics::Glyph::triangle, Bio::DB::GFF, Bio::SeqI, Bio::SeqFeatureI, Bio::Das, \&\s-1GD\s0 .SH "AUTHOR" .IX Header "AUTHOR" Shengqiang Shu Lincoln Stein . .PP Copyright (c) 2001 \s-1BDGP,\s0 Cold Spring Harbor Laboratory .PP This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See \s-1DISCLAIMER\s0.txt for disclaimers of warranty.