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HTML::TagCloud(3pm) User Contributed Perl Documentation HTML::TagCloud(3pm) NAME
HTML::TagCloud - Generate An HTML Tag Cloud SYNOPSIS
# A cloud with tags that link to other web pages. my $cloud = HTML::TagCloud->new; $cloud->add($tag1, $url1, $count1); $cloud->add($tag2, $url2, $count2); $cloud->add($tag3, $url3, $count3); my $html = $cloud->html_and_css(50); # A cloud with tags that do not link to other web pages. my $cloud = HTML::TagCloud->new; $cloud->add_static($tag1, $count1); $cloud->add_static($tag2, $count2); $cloud->add_static($tag3, $count3); my $html = $cloud->html_and_css(50); # A cloud that is comprised of tags in multiple categories. my $cloud = HTML::TagCloud->new; $cloud->add($tag1, $url1, $count1, $category1); $cloud->add($tag2, $url2, $count2, $category2); $cloud->add($tag3, $url3, $count3, $category3); my $html = $cloud->html_and_css(50); # The same cloud without tags that link to other web pages. my $cloud = HTML::TagCloud->new; $cloud->add_static($tag1, $count1, $category1); $cloud->add_static($tag2, $count2, $category2); $cloud->add_static($tag3, $count3, $category3); my $html = $cloud->html_and_css(50); # Obtaining uncategorized HTML for a categorized tag cloud. my $html = $cloud->html_without_categories(); # Explicitly requesting categorized HTML. my $html = $cloud->html_with_categories(); DESCRIPTION
The HTML::TagCloud module enables you to generate "tag clouds" in HTML. Tag clouds serve as a textual way to visualize terms and topics that are used most frequently. The tags are sorted alphabetically and a larger font is used to indicate more frequent term usage. Example sites with tag clouds: <http://www.43things.com/>, <http://www.astray.com/recipes/> and <http://www.flickr.com/photos/tags/>. This module provides a simple interface to generating a CSS-based HTML tag cloud. You simply pass in a set of tags, their URL and their count. This module outputs stylesheet-based HTML. You may use the included CSS or use your own. CONSTRUCTOR
new The constructor takes a few optional arguments: my $cloud = HTML::TagCloud->new(levels=>10); if not provided, levels defaults to 24 my $cloud = HTML::TagCloud->new(distinguish_adjacent_tags=>1); If distinguish_adjacent_tags is true HTML::TagCloud will use different CSS classes for adjacent tags in order to be able to make it easier to distinguish adjacent multi-word tags. If not specified, this parameter defaults to a false value. my $cloud = HTML::TagCloud->new(categories=>@categories); If categories are provided then tags are grouped in separate divisions by category when the HTML fragment is generated. METHODS
add This module adds a tag into the cloud. You pass in the tag name, its URL and its count: $cloud->add($tag1, $url1, $count1); $cloud->add($tag2, $url2, $count2); $cloud->add($tag3, $url3, $count3); add_static This module adds a tag that does not link to another web page into the cloud. You pass in the tag name and its count: $cloud->add_static($tag1, $count1); $cloud->add_static($tag2, $count2); tags($limit) Returns a list of hashrefs representing each tag in the cloud, sorted by alphabet. Each tag has the following keys: name, count, url and level. css This returns the CSS that will format the HTML returned by the html() method with tags which have a high count as larger: my $css = $cloud->css; html($limit) This returns the tag cloud as HTML without the embedded CSS (you should use both css() and html() or simply the html_and_css() method). If any categories were specified when items were being placed in the cloud then the tags will be organized into divisions by category name. If a limit is provided, only the top $limit tags are in the cloud, otherwise all the tags are in the cloud: my $html = $cloud->html(200); html_with_categories($limit) This returns the tag cloud as HTML without the embedded CSS. The tags will be arranged into divisions by category. If a limit is provided, only the top $limit tags are in the cloud. Otherwise, all tags are in the cloud. html_without_categories($limit) This returns the tag cloud as HTML without the embedded CSS. The tags will not be grouped by category if this method is used to generate the HTML. html_and_css($limit) This returns the tag cloud as HTML with embedded CSS. If a limit is provided, only the top $limit tags are in the cloud, otherwise all the tags are in the cloud: my $html_and_css = $cloud->html_and_css(50); AUTHOR
Leon Brocard, "<acme@astray.com>". COPYRIGHT
Copyright (C) 2005-6, Leon Brocard This module is free software; you can redistribute it or modify it under the same terms as Perl itself. perl v5.12.3 2011-06-18 HTML::TagCloud(3pm)
