SVG::TT::Graph::BarLine - Create presentation quality SVG bar-line graphs easily

SVG-TT-Graph documentation Contained in the SVG-TT-Graph distribution.

Index

Code Index:

NAME

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SVG::TT::Graph::BarLine - Create presentation quality SVG bar-line graphs easily

SYNOPSIS

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  use SVG::TT::Graph::BarLine;

  my @fields = qw(Jan Feb Mar);
  my @data_sales_02 = qw(12 45 21);
  my @data_sales_03 = (24, 55, 61);

  my $graph = SVG::TT::Graph::BarLine->new({
    'height' => '500',
    'width'  => '300',
    'fields' => \@fields,
  });

  $graph->add_data({
    'data'  => \@data_sales_02,
    'title' => 'Sales 2002',
  });

  $graph->add_data({
    'data'  => \@data_sales_03,
    'title' => 'Sales 2003',
  });

  print "Content-type: image/svg+xml\n\n";
  print $graph->burn();

DESCRIPTION

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This object aims to allow you to easily create high quality SVG bar graphs. You can either use the default style sheet or supply your own. Either way there are many options which can be configured to give you control over how the graph is generated - with or without a key, data elements at each point, title, subtitle etc.

METHODS

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new()

  use SVG::TT::Graph::BarLine;

  # Field names along the X axis
  my @fields = qw(Jan Feb Mar);

  my $graph = SVG::TT::Graph::BarLine->new({
    # Required
    'fields'                           => \@fields,

    # Optional - defaults shown
    'height'                           => '500',
    'width'                            => '300',

    'show_data_values'                 => 1,

    'scale_divisions'                  => '',
    'min_scale_value'                  => '0',
    'bar_gap'                          => 1,

    'show_x_labels'                    => 1,
    'stagger_x_labels'                 => 0,
    'rotate_x_labels'                  => 0,
    'show_y_labels'                    => 1,
    'scale_integers'                   => 0,
    'show_secondary_y_labels'          => 1,

    'show_x_title'                     => 0,
    'x_title'                          => 'X Field names',

    'show_y_title'                     => 0,
    'show_secondary_y_title'           => 0,
    'y_title_text_direction'           => 'bt',
    'secondary_y_title_text_direction' => 'bt',
    'y_title'                          => 'Y Scale',
    'secondary_y_title'                => 'Y Scale 2',

    'show_graph_title'                 => 0,
    'graph_title'                      => 'Graph Title',
    'show_graph_subtitle'              => 0,
    'graph_subtitle'                   => 'Graph Sub Title',

    'key'                              => 0,
    'key_position'                     => 'right',

    # Stylesheet defaults
    'style_sheet'                      => '/includes/graph.css', # internal stylesheet
    'random_colors'                    => 0,
  });

The constructor takes a hash reference, fields (the names for each field on the X axis) MUST be set, all other values are defaulted to those shown above - with the exception of style_sheet which defaults to using the internal style sheet.

add_data()

  my @data_sales_02 = qw(12 45 21);

  $graph->add_data({
    'data' => \@data_sales_02,
    'title' => 'Sales 2002',
  });

This method allows you to add data to the graph object. It can be called several times to add more data sets in, but the likelihood is you should be using SVG::TT::Graph::Line as it won't look great!

clear_data()

  my $graph->clear_data();

This method removes all data from the object so that you can reuse it to create a new graph but with the same config options.

burn()

  print $graph->burn();

This method processes the template with the data and config which has been set and returns the resulting SVG.

This method will croak unless at least one data set has been added to the graph object.

config methods

  my $value = $graph->method();
  my $confirmed_new_value = $graph->method($value);

The following is a list of the methods which are available to change the config of the graph object after it has been created.

height()

Set the height of the graph box, this is the total height of the SVG box created - not the graph it self which auto scales to fix the space.

width()

Set the width of the graph box, this is the total width of the SVG box created - not the graph it self which auto scales to fix the space.

compress()

Whether or not to compress the content of the SVG file (Compress::Zlib required).

tidy()

Whether or not to tidy the content of the SVG file (XML::Tidy required).

style_sheet() =item style_sheet()

Set the path to an external stylesheet, set to '' if you want to revert back to using the defaut internal version.

The default stylesheet handles up to 12 data sets. All data series over the 12th will have no style and be in black. If you have over 12 data sets you can assign them all random colors (see the random_color() method) or create your own stylesheet and add the additional settings for the extra data sets.

To create an external stylesheet create a graph using the default internal version and copy the stylesheet section to an external file and edit from there.

random_colors()

Use random colors in the internal stylesheet

show_data_values()

Show the value of each element of data on the graph

bar_gap()

Whether to have a gap between the bars or not, default is '1', set to '0' if you don't want gaps.

show_x_labels()

Whether to show labels on the X axis or not, defaults to 1, set to '0' if you want to turn them off.

stagger_x_labels()

This puts the labels at alternative levels so if they are long field names they will not overlap so easily. Default it '0', to turn on set to '1'.

rotate_x_labels()

This turns the X axis labels by 90 degrees. Default it '0', to turn on set to '1'.

show_y_labels()

Whether to show labels on the Y axis or not, defaults to 1, set to '0' if you want to turn them off.

scale_integers()

Ensures only whole numbers are used as the scale divisions. Default it '0', to turn on set to '1'. This has no effect if scale divisions are less than 1.

show_secondary_y_labels()

Whether to show labels on the right hand side Y axis or not, defaults to 1, set to '0' if you want to turn them off.

min_scale_value()

The point at which the Y axis starts, defaults to '0', if set to '' it will default to the minimum data value.

scale_divisions()

This defines the gap between markers on the Y axis, default is a 10th of the max_value, e.g. you will have 10 markers on the Y axis. NOTE: do not set this too low - you are limited to 999 markers, after that the graph won't generate.

show_x_title()

Whether to show the title under the X axis labels, default is 0, set to '1' to show.

x_title()

What the title under X axis should be, e.g. 'Months'.

show_y_title()

Whether to show the title on the left hand side Y axis, default is 0, set to '1' to show.

show_secondary_y_title()

Whether to show the title on the right hand side Y axis, default is 0, set to '1' to show.

y_title_text_direction()

Aligns writing mode for Y axis label. Defaults to 'bt' (Bottom to Top). Change to 'tb' (Top to Bottom) to reverse.

secondary_y_title_text_direction()

Aligns writing mode for right hand Y axis label. Defaults to 'bt' (Bottom to Top). Change to 'tb' (Top to Bottom) to reverse.

y_title()

What the title under Y axis should be, e.g. 'Sales in thousands'.

secondary_y_title()

What the title on the right hand side Y axis should be, e.g. 'Number of deals'.

show_graph_title()

Whether to show a title on the graph, defaults to 0, set to '1' to show.

graph_title()

What the title on the graph should be.

show_graph_subtitle()

Whether to show a subtitle on the graph, defaults to 0, set to '1' to show.

graph_subtitle()

What the subtitle on the graph should be.

key()

Whether to show a key, defaults to 0, set to '1' if you want to show it.

key_position()

Where the key should be positioned, defaults to 'right', set to 'bottom' if you want to move it.

EXAMPLES

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For examples look at the project home page http://leo.cuckoo.org/projects/SVG-TT-Graph/

EXPORT

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None by default.

ACKNOWLEDGEMENTS

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Stephen Morgan for creating the TT template and SVG.

AUTHOR

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Leo Lapworth (LLAP@cuckoo.org)

SEE ALSO

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SVG::TT::Graph, SVG::TT::Graph::Line, SVG::TT::Graph::Bar, SVG::TT::Graph::BarHorizontal, SVG::TT::Graph::Pie, SVG::TT::Graph::TimeSeries, Compress::Zlib, XML::Tidy

SVG-TT-Graph documentation Contained in the SVG-TT-Graph distribution. 
package SVG::TT::Graph::BarLine;

use strict;
use Carp;
use SVG::TT::Graph;
use base qw(SVG::TT::Graph);
use vars qw($VERSION $TEMPLATE_FH);
$VERSION = $SVG::TT::Graph::VERSION;
$TEMPLATE_FH = \*DATA;


sub _init {
  my $self = shift;
  croak "fields was not supplied or is empty" 
  unless defined $self->{'config'}->{fields} 
    && ref($self->{'config'}->{fields}) eq 'ARRAY'
    && scalar(@{$self->{'config'}->{fields}}) > 0;
}

sub _set_defaults {
  my $self = shift;
  
  my %default = (
    'width'                            => '500',
    'height'                           => '300',

    'style_sheet'                      => '',
    'random_colors'                    => 0,

    'show_data_values'                 => 1,
  
    'min_scale_value'                  => '0',
    'scale_divisions'                  => '',
    'bar_gap'                          => 1,

    'show_x_labels'                    => 1,
    'rotate_x_labels'                  => 0,
    'stagger_x_labels'                 => 0,
    'show_y_labels'                    => 1,
    'scale_integers'                   => 0,
    'show_secondary_y_labels'          => 1,

    'show_x_title'                     => 0,
    'x_title'                          => 'X Field names',
  
    'show_y_title'                     => 0,
    'show_secondary_y_title'           => 0,
    'y_title_text_direction'           => 'bt',
    'secondary_y_title_text_direction' => 'bt',
    'y_title'                          => 'Y Scale',
    'secondary_y_title'                => 'Y Scale 2',
  
    'show_graph_title'                 => 0,
    'graph_title'                      => 'Graph Title',
    'show_graph_subtitle'              => 0,
    'graph_subtitle'                   => 'Graph Sub Title',
    'key'                              => 0, 
    'key_position'                     => 'right', # bottom or right
  );
  
  while( my ($key,$value) = each %default ) {
    $self->{config}->{$key} = $value;
  }
}

1;
__DATA__
<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
  "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
[% stylesheet = 'included' %]

[% IF config.style_sheet && config.style_sheet != '' %]
  <?xml-stylesheet href="[% config.style_sheet %]" type="text/css"?>
[% ELSE %]
  [% stylesheet = 'excluded' %]
[% END %]

<svg width="[% config.width %]" height="[% config.height %]" viewBox="0 0 [% config.width %] [% config.height %]" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- \\\\\\\\\\\\\\\\\\\\\\\\\\\\  -->
<!-- Created with SVG::TT::Graph   -->
<!-- Stephen Morgan / Leo Lapworth -->
<!-- ////////////////////////////  -->

[% IF stylesheet == 'excluded' %]
<!-- include default stylesheet if none specified -->
<defs>
<style type="text/css">
<![CDATA[
/* Copy from here for external style sheet */
.svgBackground{
  fill:#ffffff;
}
.graphBackground{
  fill:#f0f0f0;
}

/* graphs titles */
.mainTitle{
  text-anchor: middle;
  fill: #000000;
  font-size: 14px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}
.subTitle{
  text-anchor: middle;
  fill: #999999;
  font-size: 12px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.axis{
  stroke: #000000;
  stroke-width: 1px;
}

.guideLines{
  stroke: #666666;
  stroke-width: 1px;
  stroke-dasharray: 5 5;
}

.xAxisLabels{
  text-anchor: middle;
  fill: #000000;
  font-size: 12px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.yAxisLabels{
  text-anchor: end;
  fill: #000000;
  font-size: 12px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.xAxisTitle{
  text-anchor: middle;
  fill: #ff0000;
  font-size: 14px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.yAxisTitle{
  fill: #ff0000;
  text-anchor: middle;
  font-size: 14px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.dataPointLabel{
  fill: #000000;
  text-anchor:middle;
  font-size: 10px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}

.staggerGuideLine{
  fill: none;
  stroke: #000000;
  stroke-width: 0.5px;
}

[% FOREACH dataset = data %]
  [% color = '' %]
  [% IF config.random_colors %]
    [% color = random_color() %]
  [% ELSE %]
    [% color = predefined_color(loop.count) %]
  [% END %]

  .line[% loop.count %]{
    fill: none;
    stroke: [% color %];
    stroke-width: 1px;
  }

  .key[% loop.count %],.fill[% loop.count %]{
    fill: [% color %];
    fill-opacity: 0.5;
    stroke: none;
    stroke-width: 0.5px;
  }

  [% LAST IF (config.random_colors == 0 && loop.count == 12) %]
[% END %]

.keyText{
  fill: #000000;
  text-anchor:start;
  font-size: 10px;
  font-family: "Arial", sans-serif;
  font-weight: normal;
}
/* End copy for external style sheet */
]]>
</style>
</defs>
[% END %]
<!-- svg bg -->
<rect x="0" y="0" width="[% config.width %]" height="[% config.height %]" class="svgBackground"/>
  
<!-- ///////////////// CALCULATE GRAPH AREA AND BOUNDARIES //////////////// -->
<!-- get dimensions of actual graph area (NOT SVG area) -->
[% w = config.width %]
[% h = config.height %]

<!-- set start/default coords of graph --> 
[% x = 0 %]
[% y = 0 %]

[% char_width = 9 %]
[% half_char_height = 2.5 %]
[% title_height = 25 %]

<!-- calc min and max values for the first dataset (ie bar graph) -->
[% min_value = 99999999999 %]
[% max_value = 0 %]
[% secondary_max_value = 0 %]
[% secondary_max_y_label_length = 0 %]
[% secondary_max_y_label_size = 0 %]
[% max_key_size = 0 %]
[% max_x_label_size = 0 %]
<!-- find largest labels values in turn -->
[% FOREACH field = config.fields %]
	[% IF max_x_label_size < field.length %]
		[% max_x_label_size = field.length %]
	[% END %]

	[% IF min_value > data.0.data.$field && data.0.data.$field != '' %]
		[% min_value = data.0.data.$field %]
	[% END %]

	[% IF max_value < data.0.data.$field && data.0.data.$field != '' %]
		[% max_value = data.0.data.$field %]
	[% END %]

	[% IF secondary_max_value < data.1.data.$field && data.1.data.$field != '' %]
		[% secondary_max_value = data.1.data.$field %]
	[% END %]
	[% IF secondary_max_y_label_size < data.1.data.$field.length %]
		[% secondary_max_y_label_size = data.1.data.$field.length %]
	[% END %]
	[% IF max_key_size < data.0.title.length %]
		[% max_key_size = data.0.title.length %]
	[% END %]
[% END %]


[% secondary_max_y_label_length = secondary_max_y_label_size * char_width %]


<!-- CALC HEIGHT AND Y COORD DIMENSIONS -->
<!-- reduce height of graph area if there is labelling on x axis -->
[% IF config.show_x_labels %][% h = h - 20 %][% END %]

  <!-- reduce height if x labels are rotated -->
  [% max_x_label_length = 0 %]
	[% IF config.rotate_x_labels %]
		[% max_x_label_length = max_x_label_size * char_width %]
		[% h = h - max_x_label_length %]
	[% END %]
	
	<!-- stagger x labels if overlapping occurs -->
	[% stagger = 0 %]
	[% IF config.stagger_x_labels %]
		[% stagger = 17 %]
		[% h = h - stagger %]
	[% END %]
	
	[% IF config.show_x_title %][% h = h - title_height - stagger %][% END %]
	
	<!-- pad top of graph if y axis has data labels so labels do not get chopped off -->
	[% IF config.show_y_labels %][% h = h - 10 %][% y = y + 10 %][% END %]
	
	<!-- reduce height if graph has title or subtitle -->
	[% IF config.show_graph_title %][% h = h - title_height %][% y = y + title_height %][% END %]
	[% IF config.show_graph_subtitle %][% h = h - 10 %][% y = y + 10 %][% END %]
	
<!-- reduce graph dimensions if there is a KEY -->
	[% key_box_size = 12 %]
	
	[% IF config.key && config.key_position == 'right' %]
		[% IF config.show_secondary_y_title %]
			[% w = w - (max_key_size * (char_width - 1)) - (key_box_size * 3 ) %]
		[% ELSE %]
			[% w = w - (max_key_size * (char_width - 1)) - (key_box_size * 3 ) - title_height %]
		[% END %]
	[% ELSIF config.key && config.key_position == 'bottom' %]
    [% IF data.size < 4 %]
      [% h = h - ((data.size + 1) * (key_box_size + key_padding))%]
    [% ELSE %]
      [% h = h - (4 * (key_box_size + key_padding))%]
    [% END %]        
	[% END %]

	<!-- find start value for scale on y axis -->
	[% IF config.min_scale_value || config.min_scale_value == '0' %]
		[% min_scale_value = config.min_scale_value %]
	[% ELSE %]
		<!-- setting lowest value to be min_value as no min_scale_value defined -->
		[% min_scale_value = min_value %]
	[% END %]
	
	<!-- base line -->
	[% base_line = h + y %]
	
	<!-- how much padding between largest bar and top of graph -->
	[% IF (max_value - min_scale_value) == 0 %]
		[% top_pad = 10 %]
	[% ELSE %]
		[% top_pad = (max_value - min_scale_value) / 20 %]	
	[% END %]	
	
	<!-- how much padding between largest bar and top of graph for secondary y axis -->
	[% IF (secondary_max_value - min_scale_value) == 0 %]
		[% secondary_top_pad = 10 %]
	[% ELSE %]
		[% secondary_top_pad = (secondary_max_value - min_scale_value) / 20 %]	
	[% END %]	
	
	[% scale_range = (max_value + top_pad) - min_scale_value %]
	[% secondary_scale_range = (secondary_max_value + secondary_top_pad) - min_scale_value %]

	<!-- default to 10 scale_divisions if none have been set -->
	[% IF config.scale_divisions %]
		[% scale_division = config.scale_divisions %]
	[% ELSE %]
		[% scale_division = scale_range / 10 FILTER format('%2.01f') %]
	[% END %]
	
  <!-- default to 10 scale_divisions if none have been set for secondary y axis -->
	[% IF config.scale_divisions %]
		[% secondary_scale_division = config.scale_divisions %]
	[% ELSE %]
		[% secondary_scale_division = secondary_scale_range / 10 FILTER format('%2.01f') %]
	[% END %]

	[% IF config.scale_integers %]
		[% IF scale_division < 1 %]
			[% scale_division = 1 %]
		[% ELSIF scale_division.match('.') %]
			[% scale_division = scale_division FILTER format('%2.0f') %]
		[% END %]
	[% END %]
	
<!-- JUMP THE GUN AND CALC BAR WIDTHS AS THESE ARE USED FOR PADDING IF LARGE X LABELS ARE USED -->
<!-- get number of data points on x scale -->
[% dx = config.fields.size %]

[% secondary_title_padding = 0 %]
[% IF config.show_secondary_y_labels %]
	[% w = w - secondary_max_y_label_length - title_height %]
	[% secondary_title_padding = secondary_title_padding + secondary_max_y_label_length + 10 %]
[% END %]

[% IF config.show_secondary_y_title %]
	[% w = w - title_height - char_width %]
	[% secondary_title_padding = secondary_title_padding + title_height %]
[% END %]


<!-- get distribution width on x axis -->
[% data_widths_x = w / dx %]
[% dw = data_widths_x FILTER format('%2.02f') %]


<!-- CALC WIDTH AND X COORD DIMENSIONS -->
<!-- reduce width of graph area if there is large labelling on x axis -->
[% half_label_width = (config.fields.0.length / 2) * char_width %]

[% space_b4_y_axis = 0 %]
[% IF half_label_width > (dw / 2) %]
	<!-- calc difference and pad accordingly -->
	[% space_b4_y_axis = half_label_width - (dw / 2) %]
	<!-- only need to pad the left side if a key is present -->
	[% IF config.key && config.key_position == 'right' %]
		[% w = w - space_b4_y_axis %]
	[% ELSE %]
		<!-- pad both sides -->
		[% w = w - (space_b4_y_axis * 2) %]
	[% END %]
	[% x = x + space_b4_y_axis %]
[% END %]

<!-- find the string length of max value -->
[% max_value_length = max_value.length %]

<!-- label width in pixels -->
[% max_value_length_px = max_value_length * char_width %]
<!-- If the y labels are shown but the size of the x labels are small, pad for y labels -->

[% IF config.show_y_labels && space_b4_y_axis < max_value_length_px %]
	<!-- allow slightly more padding if small labels -->
	[% IF max_value_length < 2 %]
		[% w = w - (max_value_length * (char_width * 2)) %]
		[% x = x + (max_value_length * (char_width * 2)) %]
	[% ELSE %]
		[% w = w - max_value_length_px %]
		[% x = x + max_value_length_px %]
	[% END %]
[% END %]

[% IF config.show_y_title && space_b4_y_axis < max_value_length_px %]
	[% w = w - title_height %]
	[% x = x + title_height %]
[% END %]


<!-- //////////////////////////////  BUILD GRAPH AREA ////////////////////////////// -->
<!-- graph bg -->
<rect x="[% x %]" y="[% y %]" width="[% w %]" height="[% h %]" class="graphBackground"/>

<!-- axis -->
<path d="M[% x %] [% y %] v[% h %]" class="axis" id="xAxis"/>
<path d="M[% x %] [% base_line %] h[% w %]" class="axis" id="yAxis"/>

<path d="M[% x + w %] [% y %] v[% h %]" class="axis" id="yAxis2"/>
<!-- //////////////////////////////  AXIS DISTRIBUTIONS //////////////////////////// -->
<!-- get number of data points on x scale -->
[% dx = config.fields.size %]
<!-- get distribution width on x axis -->
[% data_widths_x = w / dx %]

<!-- decimal point control removed due to exaggerated error when large groups of data used -->
[%# dw = data_widths_x.match('(\d+[\.\d\d])').0 %]

[% dw = data_widths_x %]
[% IF config.bar_gap %]
  [% bar_gap = 10 %]
  [% IF dw < bar_gap %]
		[% bar_gap = dw / 2 %]
	[% END %]
[% ELSE %]
	[% bar_gap = 0 %]
[% END %]

[% i = dw %]
[% count = 0 %]
[% stagger_count = 0 %]

<!-- x axis labels -->
[% IF config.show_x_labels %]
	[% FOREACH field = config.fields %]
		[% IF count == 0 %]
      <text x="[% x + (dw / 2) - (bar_gap / 2) %]" y="[% base_line + 15 %]" [% IF config.rotate_x_labels %]transform="rotate(90 [% x + (dw / 2) - (bar_gap / 2) - half_char_height %] [% base_line + 15 %])" style="text-anchor: start" [% END %]class="xAxisLabels">[% field %]</text>
		  [% i = i - dw %]
		[% ELSE %]
			[% IF stagger_count == 2 %]
				<text x="[% x + i + (dw / 2) - (bar_gap / 2) %]" y="[% base_line + 15 %]" [% IF config.rotate_x_labels %]transform="rotate(90 [% x + i + (dw / 2) - (bar_gap / 2) - half_char_height %] [% base_line + 15 %])" style="text-anchor: start" [% END %]class="xAxisLabels">[% field %]</text>
				[% stagger_count = 0 %]
			[% ELSE %]
				<text x="[% x + i + (dw / 2) - (bar_gap / 2) %]" y="[% base_line + 15 + stagger %]" [% IF config.rotate_x_labels %]transform="rotate(90 [% x + i + (dw / 2) - (bar_gap / 2) - half_char_height %] [% base_line + 15 + stagger %])" style="text-anchor: start" [% END %]class="xAxisLabels">[% field %]</text>
				<path d="M[% x + i + (dw / 2) - (bar_gap / 2) %] [% base_line %] v[% stagger %]" class="staggerGuideLine" />
			[% END %]
		[% END %]
	  [% i = i + dw %]
	  [% count = count + 1 %]
	  [% stagger_count = stagger_count + 1 %]
	[% END %]
[% END %]


<!-- distribute Y scale -->
[% dy = scale_range / scale_division %]
<!-- ensure y_data_points butt up to edge of graph -->
[% y_marker_height = h / dy %]
[% dy = y_marker_height.match('(\d+[\.\d\d])').0 %]
[% count = 0 %]
[% y_value = min_scale_value %]
[% IF config.show_y_labels %]
	[% WHILE (dy * count) < h %]
		[% IF count == 0 %]
  		<!-- no stroke for first line -->
			<text x="[% x - 5 %]" y="[% base_line - (dy * count) %]" class="yAxisLabels">[% y_value %]</text>
		[% ELSE %]
			<text x="[% x - 5 %]" y="[% base_line - (dy * count) %]" class="yAxisLabels">[% y_value %]</text>
			<path d="M[% x %] [% base_line - (dy * count) %] h[% w %]" class="guideLines"/>
		[% END %]
		[% y_value = y_value + scale_division %]
		[% count = count + 1 %]
	[% END %]
[% END %]


<!-- distribute secondary Y scale -->

<!-- ensure y_data_points butt up to edge of graph -->
[% secondary_y_marker_height = h / dy %]

[% s_count = 0 %]
[% secondary_y_value = min_scale_value %]
[% IF config.show_secondary_y_labels %]
	[% WHILE (dy * s_count) < h %]
		<text x="[% x + w + 5 %]" y="[% base_line - (dy * s_count) %]" class="yAxisLabels" style="text-anchor: start">[% secondary_y_value %]</text>

		[% secondary_y_value = secondary_y_value + secondary_scale_division %]
		[% s_count = s_count + 1 %]
	[% END %]
[% END %]


<!-- //////////////////////////////  AXIS TITLES ////////////////////////////// -->

<!-- x axis title -->
[% IF config.show_x_title %]
	[% IF !config.show_x_labels %]
		[% y_xtitle = 15 %]
	[% ELSE %]
		[% y_xtitle = 35 %]
	[% END %]
	<text x="[% (w / 2) + x %]" y="[% h + y + y_xtitle + stagger + max_x_label_length %]" class="xAxisTitle">[% config.x_title %]</text>
[% END %]

<!-- y axis title -->
[% IF config.show_y_title %]
	[% IF config.y_title_text_direction == 'tb' %]
		<text x="11" y="[% (h / 2) + y %]" class="yAxisTitle" style="writing-mode:tb;">[% config.y_title %]</text>
	[% ELSE %]
		<text class="yAxisTitle" transform="translate(15,[% (h / 2) + y %]) rotate(270)">[% config.y_title %]</text>
	[% END %]
[% END %]

<!-- secondary y axis title -->
[% IF config.show_secondary_y_title %]
	[% IF config.secondary_y_title_text_direction == 'tb' %]
		<text x="[% x + w + secondary_title_padding %]" y="[% (h / 2) + y %]" class="yAxisTitle" style="writing-mode:tb;">[% config.secondary_y_title %]</text>
	[% ELSE %]
		<text class="yAxisTitle" transform="translate([% x + w + secondary_title_padding %],[% (h / 2) + y %]) rotate(270)">[% config.secondary_y_title %]</text>
	[% END %]
[% END %]


<!-- //////////////////////////////  SHOW DATA ////////////////////////////// -->
[% bar_width = dw - bar_gap %]

[% divider = dy / scale_division %]
[% secondary_divider = dy / secondary_scale_division %]

[% xcount = 0 %]
[% line = data.size %]

<!-- Draw BAR CHART -->
[% FOREACH field = config.fields %]
	[% dcount = 1 %]
	<path d="M[% x + (dw * xcount) %] [% base_line %] V[% base_line - (data.0.data.$field * divider) %] h[% bar_width %] V[% base_line %] Z" class="fill[% dcount %]"/>
	[% IF config.show_data_values %]
		<text x="[% (dw * xcount) + x + (dw / 2) - (bar_gap / 2) %]" y="[% base_line - (data.0.data.$field * divider) - 6 %]" class="dataPointLabel">[% data.0.data.$field %]</text>
	[% END %]
	[% dcount = dcount + 1 %]	
  [% xcount = xcount + 1 %]		
[% END %]

<!-- Draw Line graph -->
<path d="M
[% xcount = 0 %]
[% FOREACH field = config.fields %]
  [% IF xcount == 1 %] L [% END %]
    [% (dw * xcount) + x + (bar_width / 2) %] [% base_line - (data.1.data.$field * secondary_divider) %]
    [% xcount = xcount + 1 %]       
  [% END %]" class="line[% line %]"/>

  [% xcount = 0 %]
  [% FOREACH field = config.fields %]
    [% IF config.show_data_points %]
      <!-- datapoint shown -->
      <circle cx="[% (dw * xcount) + x + (bar_width / 2) %]" cy="[% base_line - (data.1.data.$field * secondary_divider) %]" r="2.5" class="dataPoint[% line %]"/>
    [% END %]
            
    [% IF config.show_data_values %]
      <!-- datavalue shown -->
      <text x="[% (dw * xcount) + x + (bar_width / 2) %]" y="[% base_line - (data.1.data.$field * secondary_divider) - 6 %]" class="dataPointLabel">[% data.1.data.$field %]</text>
    [% END %]
  [% xcount = xcount + 1 %]       
[% END %]


<!-- //////////////////////////////// KEY ///////////////////////////////// -->
[% key_count = 1 %]
[% key_padding = 5 %]
[% IF config.key && config.key_position == 'right' %]
	[% FOREACH dataset = data %]
		<rect x="[% x + w + 20 + secondary_max_y_label_length + title_height %]" y="[% y + (key_box_size * key_count) + (key_count * key_padding) %]" width="[% key_box_size %]" height="[% key_box_size %]" class="key[% key_count %]"/>
		<text x="[% x + w + 20 + key_box_size + key_padding + secondary_max_y_label_length + title_height %]" y="[% y + (key_box_size * key_count) + (key_count * key_padding) + key_box_size %]" class="keyText">[% dataset.title %]</text>
		[% key_count = key_count + 1 %]
	[% END %]
[% ELSIF config.key && config.key_position == 'bottom' %]
	<!-- calc y position of start of key -->
	[% y_key = base_line %]
	[% IF config.show_x_title %][% y_key = y_key + title_height %][% END %]
	[% IF config.rotate_x_labels && config.show_x_labels %]
		[% y_key = y_key + max_x_label_length %]
	[% ELSIF config.show_x_labels && stagger < 1 %]
		[% y_key = y_key + 20 %]
	[% END %]
	
	[% y_key_start = y_key %]
	[% x_key = x %]
	[% FOREACH dataset = data %]
		[% IF key_count == 4 || key_count == 7 || key_count == 10 %]
  		<!-- wrap key every 3 entries -->
			[% x_key = x_key + 200 %]
			[% y_key = y_key - (key_box_size * 4) - 2 %]
		[% END %]
		<rect x="[% x_key %]" y="[% y_key + (key_box_size * key_count) + (key_count * key_padding) + stagger %]" width="[% key_box_size %]" height="[% key_box_size %]" class="key[% key_count %]"/>
		<text x="[% x_key + key_box_size + key_padding %]" y="[% y_key + (key_box_size * key_count) + (key_count * key_padding) + key_box_size + stagger %]" class="keyText">[% dataset.title %]</text>
		[% key_count = key_count + 1 %]
	[% END %]
	
[% END %]

<!-- //////////////////////////////// MAIN TITLES ////////////////////////// -->

<!-- main graph title -->
[% IF config.show_graph_title %]
	<text x="[% config.width / 2 %]" y="15" class="mainTitle">[% config.graph_title %]</text>
[% END %]

<!-- graph sub title -->
[% IF config.show_graph_subtitle %]
	[% IF config.show_graph_title %]
		[% y_subtitle = 30 %]
	[% ELSE %]
		[% y_subtitle = 15 %]
	[% END %]
	<text x="[% config.width / 2 %]" y="[% y_subtitle %]" class="subTitle">[% config.graph_subtitle %]</text>
[% END %]
</svg>