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Imager::Graph::Horizontal(3) User Contributed Perl Documentation Imager::Graph::Horizontal(3)

  Imager::Graph::Horizontal - A super class for line/bar charts
add_data_series(\@data, $series_name)
Add a data series to the graph, of the default type.
add_bar_data_series(\@data, $series_name)
Add a bar data series to the graph.
add_line_data_series(\@data, $series_name)
Add a line data series to the graph.
set_column_padding($int)
Sets the number of pixels that should go between columns of data.
set_negative_background($color)
Sets the background color or fill used below the y axis.
draw()
Draw the graph
show_vertical_gridlines()
Shows vertical gridlines at the y-tics.

Feature: vertical_gridlines

set_vertical_gridline_style(color => ..., style => ...)
Set the color and style of the lines drawn for gridlines.

Style equivalent: vgrid

show_line_markers()
show_line_markers($value)
Feature: linemarkers.

If $value is missing or true, draw markers on a line data series.

Note: line markers are drawn by default.

use_automatic_axis()
Automatically scale the Y axis, based on Chart::Math::Axis. If Chart::Math::Axis isn't installed, this sets an error and returns undef. Returns 1 if it is installed.
set_x_tics($count)
Set the number of X tics to use. Their value and position will be determined by the data range.

Hey! The above document had some coding errors, which are explained below:
Around line 18:
=over without closing =back
Around line 583:
=over without closing =back
2012-05-06 perl v5.32.1

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