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use strict; |
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use warnings; |
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package App::WIoZ; |
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{ |
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$App::WIoZ::VERSION = '0.004'; |
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} |
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#use feature 'say'; |
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use Moose; |
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use Color::Mix; |
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use Cairo; |
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use Math::PlanePath::HilbertCurve; |
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use Graphics::ColorNames; |
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use App::WIoZ::Point; |
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use App::WIoZ::Word; |
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# ABSTRACT: App::WIoZ create a SVG or PNG image of a word cloud from a simple text file |
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=head1 NAME - App::WIoZ |
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App::WIoZ - a perl word cloud generator |
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=head1 VERSION |
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version 0.004 |
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=head1 DESCRIPTION |
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App::WIoZ can create a SVG or PNG image of a word cloud from a simple text file with C<word;weight>. |
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App::WIoZ is an acronym for "Words for Io by Zeus", look for the Correggio painting to watch the cloud. |
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App::WIoZ is based on C<Wordle> strategy and C<yawc> perl clone. |
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Usage: |
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my $File = 'words.txt'; |
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my $wioz = App::WIoZ->new( |
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font_min => 18, font_max => 64, |
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set_font => "DejaVuSans,normal,bold", |
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filename => "testoutput", |
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basecolor => '226666'); # violet |
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if (-f $File) { |
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my @words = $wioz->read_words($File); |
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$wioz->do_layout(@words); |
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} |
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else { |
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$wioz->chg_font("LiberationSans,normal,bold"); |
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$wioz->update_colors('testoutput.sl.txt'); |
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} |
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watch C<doc/freq.pl> to create a C<words.txt> file. |
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=head1 STATUS |
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App::WIoZ is actually a POC to play with Moose, Cairo or Math::PlanePath. |
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The use of an Hilbert curve to manage free space is for playing with Math::PlanePath modules. |
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Performance can be improved in free space matching, or in spiral strategy to find free space. |
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Max and min font sizes can certainly be computed. |
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Feel free to clone this project on GitHub. |
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=head1 SETTINGS |
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=head2 height |
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image height, default to 600 |
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=cut |
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has 'height' => ( |
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is => 'ro', isa => 'Int', default => 600 |
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); |
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=head2 width |
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image width, default to 800 |
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=cut |
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has 'width' => ( |
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is => 'ro', isa => 'Int', default => 800 |
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); |
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has 'center' => ( |
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is => 'ro', isa => 'App::WIoZ::Point', |
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lazy => 1, |
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default => sub { |
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my $self = shift; |
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return App::WIoZ::Point->new( |
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x => int($self->width/2), |
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y => int($self->height/2)); |
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} |
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); |
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=head2 font_min, font_max |
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required min and max font size |
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=cut |
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has ['font_min','font_max'] => ( |
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is => 'ro', required => 1, isa => 'Int' |
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); |
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=head2 set_font, chg_font, font |
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accessors for font name, type and weight |
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C<set_font> : set font in new WIoZ object, default is C<'LiberationSans,normal,bold'> |
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C<chg_font> : change font |
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C<font> : read font object |
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Usage : |
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$wioz = App::WIoZ->new( font_min => 18, font_max => 64, |
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set_font => 'DejaVuSans,normal,bold'); |
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$fontname = $wioz->font->{font}; |
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$wioz->chg_font('LiberationSans,normal,bold'); |
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=cut |
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has 'font' => ( |
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isa => 'HashRef', |
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is => 'ro', lazy => 1, |
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writer => 'chg_font', |
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builder => '_set_font' |
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); |
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# for font builder |
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has 'set_font' => ( is => 'rw',isa => 'Str' ); |
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sub _set_font { |
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my ($self,$font) = @_; |
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my ($fname,$ftype,$fweight) = split ',', ($self->set_font || ',,'); |
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return ( { font => $fname || 'LiberationSans', |
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type => $ftype || 'normal', |
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weight => $fweight || 'bold' }); |
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}; |
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# for font change |
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around 'chg_font' => sub { |
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my ($next,$self,$font) = @_; |
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my ($fname,$ftype,$fweight) = split ',', $font; |
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$self->$next( {font => $fname, type => $ftype, weight => $fweight}); |
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}; |
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has 'backcolor' => ( |
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is => 'ro', isa => 'Str', |
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default => 'white' |
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); |
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has 'cr' => ( |
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is => 'rw', isa => 'Cairo::Context', |
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lazy => 1, builder => '_create_cr' |
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); |
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has 'surface' => ( |
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is => 'rw', isa => 'Cairo::ImageSurface', |
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); |
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has 'svgsurface' => ( |
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is => 'rw', isa => 'Cairo::SvgSurface', |
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); |
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=head2 filename |
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file name output, extension C<.png> or C<.svg> will be added |
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=cut |
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has 'filename' => ( |
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is => 'rw', isa => 'Str', |
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); |
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=head2 svg |
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produce a svg output, default value |
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set to 0 to write a png |
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=cut |
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has 'svg' => ( |
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is => 'ro', isa => 'Int', default => 1 |
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); |
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has 'fcurve' => ( |
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is => 'rw', isa => 'Math::PlanePath', |
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); |
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=head2 scale |
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Scale for the Hilbert Curve granularity default to 10 |
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Higer value produces better speed but more words recovery. |
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=cut |
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has 'scale' => ( |
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is =>'ro', isa => 'Int', default => 10 # 20 better |
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); |
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has 'cused' => ( |
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is => 'rw', isa => 'ArrayRef[Int]', default => sub {[]} |
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); |
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=head2 basecolor |
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Base color for color theme, default to 882222 |
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=cut |
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has 'basecolor' => ( |
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is =>'ro', isa => 'Str', default => '882222' |
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); |
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=head1 METHODS |
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=cut |
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sub _create_cr { |
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my $self = shift; |
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my $scale = $self->scale; |
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my $hilbert = Math::PlanePath::HilbertCurve->new; |
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$self->fcurve($hilbert); |
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my $cr; |
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if ($self->svg) { |
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my $svgsurface = Cairo::SvgSurface->create ($self->filename.'.svg', $self->width, $self->height); |
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$self->svgsurface($svgsurface); |
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$cr = Cairo::Context->create($svgsurface); |
242
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} |
243
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else { |
244
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my $surface = Cairo::ImageSurface->create ('argb32', $self->width, $self->height); |
245
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$self->surface($surface); |
246
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$cr = Cairo::Context->create($surface); |
247
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}; |
248
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249
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$cr->save; |
250
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$cr->rectangle (0, 0, $self->width, $self->height); |
251
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my $po = Graphics::ColorNames->new; |
252
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my @rgb = $po->rgb($self->backcolor); |
253
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$cr->set_source_rgb ($rgb[0]/255.0, $rgb[1]/255.0, $rgb[2]/255.0); |
254
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$cr->fill; |
255
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$cr->restore; |
256
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return $cr; |
257
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}; |
258
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259
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=head2 read_words |
260
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261
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read words form file : C<word;weight> |
262
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263
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Usage: |
264
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my @words = $wioz->read_words($File); |
265
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266
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=cut |
267
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268
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sub read_words { |
269
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my ($self, $filename) = @_; |
270
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my ($weight_min, $weight_max) = (1000000000, 0); |
271
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my @res = (); |
272
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my $fh; |
273
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open $fh, '<:utf8', $filename; |
274
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my @L = <$fh>; |
275
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close $fh; |
276
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foreach my $l (@L) { |
277
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|
my ($t,$n) = split /;/,$l; |
278
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|
if ( $t && $n ) { |
279
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|
$t =~ s/\s*$//g; $n =~ s/\s*$//g; |
280
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|
|
#$all_weight += $n; |
281
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|
$weight_max = $n if ( $n >$weight_max ); |
282
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|
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|
$weight_min = $n if ( $n <$weight_min ); |
283
|
|
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|
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|
|
my $w = new App::WIoZ::Word(text => $t, weight => $n, font => $self->font); |
284
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|
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|
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|
push @res, $w; |
285
|
|
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|
} else { |
286
|
|
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|
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|
|
warn "error line: $_"; |
287
|
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|
|
} |
288
|
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|
|
|
} |
289
|
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|
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|
|
# set initial size and color |
290
|
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|
|
|
|
my @color = Color::Mix->new->analogous($self->basecolor, 12, 12); |
291
|
|
|
|
|
|
|
foreach my $v (@res) { |
292
|
|
|
|
|
|
|
$v->size( (($v->weight - $weight_min) / ($weight_max - $weight_min)) * |
293
|
|
|
|
|
|
|
($self->font_max - $self->font_min) + |
294
|
|
|
|
|
|
|
$self->font_min ); |
295
|
|
|
|
|
|
|
$v->color($color[int(rand(12))]); |
296
|
|
|
|
|
|
|
} |
297
|
|
|
|
|
|
|
return @res; |
298
|
|
|
|
|
|
|
} |
299
|
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300
|
|
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|
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301
|
|
|
|
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|
|
=head2 update_colors |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
Read words position from file and update colors. |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
Usage: |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
$wioz->update_colors("file.sl.txt"); |
308
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
=cut |
310
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
sub update_colors{ |
312
|
|
|
|
|
|
|
my ($self, $filename) = @_; |
313
|
|
|
|
|
|
|
|
314
|
|
|
|
|
|
|
open my $fh, '<:utf8', $filename or die $filename . ' : ' .$!; |
315
|
|
|
|
|
|
|
my @L = <$fh>; |
316
|
|
|
|
|
|
|
close $fh; |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
my @color = Color::Mix->new->analogous($self->basecolor, 12, 12); |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
# reset background |
321
|
|
|
|
|
|
|
$self->cr->rectangle (0, 0, $self->width, $self->height); |
322
|
|
|
|
|
|
|
my $po = Graphics::ColorNames->new; |
323
|
|
|
|
|
|
|
my @rgb = $po->rgb($self->backcolor); |
324
|
|
|
|
|
|
|
$self->cr->set_source_rgb ($rgb[0]/255.0, $rgb[1]/255.0, $rgb[2]/255.0); |
325
|
|
|
|
|
|
|
$self->cr->fill; |
326
|
|
|
|
|
|
|
|
327
|
|
|
|
|
|
|
foreach my $l (@L) { |
328
|
|
|
|
|
|
|
my ($show,$text,$size,$x,$y,$angle) = split /\t/,$l; |
329
|
|
|
|
|
|
|
#say "$text - $size - $angle"; |
330
|
|
|
|
|
|
|
my $w = App::WIoZ::Word->new(text => $text, size => $size, angle => $angle, show => $show, color => $color[int(rand(12))], font => $self->font); |
331
|
|
|
|
|
|
|
my $newc = App::WIoZ::Point->new( x => $x, y => $y); |
332
|
|
|
|
|
|
|
$w->update_size($self,$size); |
333
|
|
|
|
|
|
|
$w->update_c($newc); |
334
|
|
|
|
|
|
|
$self->_show_word($w); |
335
|
|
|
|
|
|
|
} |
336
|
|
|
|
|
|
|
$self->_save_to_png if (!$self->svg); |
337
|
|
|
|
|
|
|
} |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
=head2 do_layout |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
Compute words position, save result to svg or png image, save in C<filename.sl.txt> words positions to update colors. |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
Usage : |
344
|
|
|
|
|
|
|
$wioz->do_layout(@words); |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
=cut |
347
|
|
|
|
|
|
|
|
348
|
|
|
|
|
|
|
sub do_layout { |
349
|
|
|
|
|
|
|
my ($self,@words) = @_; |
350
|
|
|
|
|
|
|
my $c = 0; |
351
|
|
|
|
|
|
|
my $current = undef; |
352
|
|
|
|
|
|
|
my @dx = (1, 1, 0, 0,-1,-1,-1,-1, 0, 0, 1, 1); |
353
|
|
|
|
|
|
|
my @dy = (0, 1, 1, 1, 1, 0, 0,-1,-1,-1,-1, 0); |
354
|
|
|
|
|
|
|
|
355
|
|
|
|
|
|
|
#foreach my $w (@words) { |
356
|
|
|
|
|
|
|
foreach my $w (sort {$b->weight cmp $a->weight} @words) { |
357
|
|
|
|
|
|
|
# init |
358
|
|
|
|
|
|
|
$w->show(1); |
359
|
|
|
|
|
|
|
$w->update_size($self,$w->size) if (!$w->height && !$w->width); |
360
|
|
|
|
|
|
|
$current = $w if (! $current); |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
# process |
363
|
|
|
|
|
|
|
my $inside; |
364
|
|
|
|
|
|
|
my @ranges; |
365
|
|
|
|
|
|
|
|
366
|
|
|
|
|
|
|
my ($x1, $y1) = my ($x, $y) = (int($self->width/2), int($self->height/2)); |
367
|
|
|
|
|
|
|
my $step = $self->scale; |
368
|
|
|
|
|
|
|
my $dir = 0; |
369
|
|
|
|
|
|
|
my $i = 0; |
370
|
|
|
|
|
|
|
do { |
371
|
|
|
|
|
|
|
# spiral |
372
|
|
|
|
|
|
|
my $newc = App::WIoZ::Point->new( x => int($x), y => int($y)); |
373
|
|
|
|
|
|
|
$x1 = $x1 + $dx[$i%12] * $step; |
374
|
|
|
|
|
|
|
$y1 = $y1 + $dy[$i%12] * $step; |
375
|
|
|
|
|
|
|
$x = $x1; $y = $y1; |
376
|
|
|
|
|
|
|
$step += 2 ; |
377
|
|
|
|
|
|
|
$w->update_c($newc); |
378
|
|
|
|
|
|
|
# is in free space |
379
|
|
|
|
|
|
|
$inside = ($w->p->x > 0 && $w->p->x <= $self->width && |
380
|
|
|
|
|
|
|
$w->p2->x > 0 && $w->p2->x <= $self->width && |
381
|
|
|
|
|
|
|
$w->p->y > 0 && $w->p->y <= $self->height && |
382
|
|
|
|
|
|
|
$w->p2->y > 0 && $w->p2->y <= $self->height) || 0; |
383
|
|
|
|
|
|
|
@ranges = $w->is_free($self) if $inside; |
384
|
|
|
|
|
|
|
# try some other strategy |
385
|
|
|
|
|
|
|
$i++; |
386
|
|
|
|
|
|
|
if ($i>60 || !$inside) { |
387
|
|
|
|
|
|
|
$i = 10; |
388
|
|
|
|
|
|
|
$step=$self->scale; |
389
|
|
|
|
|
|
|
my ($xt,$yt) = $self->_random_point($current->width,$current->height); |
390
|
|
|
|
|
|
|
($x1, $y1) = ($x, $y) = ($current->p->x + $xt,$current->p->y - $yt); |
391
|
|
|
|
|
|
|
if ( ! $dir ) { |
392
|
|
|
|
|
|
|
$dir = 1; |
393
|
|
|
|
|
|
|
#say ' revert : '.$w->text; |
394
|
|
|
|
|
|
|
my @rdx = reverse @dx; |
395
|
|
|
|
|
|
|
my @rdy = reverse @dy; |
396
|
|
|
|
|
|
|
@dx = @rdx; @dy = @rdy; |
397
|
|
|
|
|
|
|
} |
398
|
|
|
|
|
|
|
else { |
399
|
|
|
|
|
|
|
$dir = 0; |
400
|
|
|
|
|
|
|
if ($w->size - 1 <= 5) { |
401
|
|
|
|
|
|
|
#say ' no place for : '.$w->text; |
402
|
|
|
|
|
|
|
$w->show(0); |
403
|
|
|
|
|
|
|
next; |
404
|
|
|
|
|
|
|
} |
405
|
|
|
|
|
|
|
#say ' decrease : '.$w->text; |
406
|
|
|
|
|
|
|
$w->update_size($self,$w->size - 1); |
407
|
|
|
|
|
|
|
} |
408
|
|
|
|
|
|
|
}; |
409
|
|
|
|
|
|
|
} while ( ! $inside || scalar @ranges == 1 ); |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
# register used space |
412
|
|
|
|
|
|
|
map { if ($_) {push @{ $self->cused }, $_} } @ranges; |
413
|
|
|
|
|
|
|
|
414
|
|
|
|
|
|
|
# show |
415
|
|
|
|
|
|
|
$self->_show_word($w) if ($w->show); |
416
|
|
|
|
|
|
|
|
417
|
|
|
|
|
|
|
#$c++; last if $c > 2; |
418
|
|
|
|
|
|
|
} |
419
|
|
|
|
|
|
|
|
420
|
|
|
|
|
|
|
$self->_save_to_png if (!$self->svg); |
421
|
|
|
|
|
|
|
|
422
|
|
|
|
|
|
|
$self->_save_layout(@words); |
423
|
|
|
|
|
|
|
|
424
|
|
|
|
|
|
|
} |
425
|
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
sub _save_to_png { |
427
|
|
|
|
|
|
|
my $self = shift; |
428
|
|
|
|
|
|
|
$self->surface->write_to_png ($self->filename . '.png'); |
429
|
|
|
|
|
|
|
} |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
# Save words position to a file. Usefull to update colors. |
432
|
|
|
|
|
|
|
sub _save_layout { |
433
|
|
|
|
|
|
|
my ($self, @words) = @_; |
434
|
|
|
|
|
|
|
my $fh; |
435
|
|
|
|
|
|
|
open $fh, '>:utf8', $self->filename . '.sl.txt'; |
436
|
|
|
|
|
|
|
foreach my $w (@words) { |
437
|
|
|
|
|
|
|
print $fh $w->show."\t".$w->text."\t".$w->size."\t".$w->c->x."\t".$w->c->y."\t".$w->angle."\n"; |
438
|
|
|
|
|
|
|
} |
439
|
|
|
|
|
|
|
close $fh; |
440
|
|
|
|
|
|
|
} |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
|
443
|
|
|
|
|
|
|
sub _show_word { |
444
|
|
|
|
|
|
|
my ($self,$w) = @_; |
445
|
|
|
|
|
|
|
|
446
|
|
|
|
|
|
|
$self->cr->select_font_face( |
447
|
|
|
|
|
|
|
$w->font->{font},$w->font->{type},$w->font->{weight}); |
448
|
|
|
|
|
|
|
$self->cr->set_font_size($w->size); |
449
|
|
|
|
|
|
|
my $po = Graphics::ColorNames->new; |
450
|
|
|
|
|
|
|
my @rgb = $po->rgb($w->color); |
451
|
|
|
|
|
|
|
$self->cr->set_source_rgb ($rgb[0]/255.0, $rgb[1]/255.0, $rgb[2]/255.0); |
452
|
|
|
|
|
|
|
#say ' '.$w->text.' '.$w->color; |
453
|
|
|
|
|
|
|
if ($w->angle < 0) { |
454
|
|
|
|
|
|
|
$self->cr->save; |
455
|
|
|
|
|
|
|
$self->cr->move_to($w->p->x+$w->width,$w->p->y); |
456
|
|
|
|
|
|
|
$self->cr->rotate($w->angle); |
457
|
|
|
|
|
|
|
$self->cr->show_text($w->text); |
458
|
|
|
|
|
|
|
$self->cr->restore; |
459
|
|
|
|
|
|
|
} |
460
|
|
|
|
|
|
|
else { |
461
|
|
|
|
|
|
|
$self->cr->move_to($w->p->x,$w->p->y); |
462
|
|
|
|
|
|
|
$self->cr->show_text($w->text); |
463
|
|
|
|
|
|
|
} |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
} |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
sub _random_point { |
468
|
|
|
|
|
|
|
my ($self,$width, $height) = @_; |
469
|
|
|
|
|
|
|
my $x = rand( $width * 0.8 ) + $width * 0.1 ; |
470
|
|
|
|
|
|
|
my $y = rand( $height * 0.8 ) + $height * 0.1 ; |
471
|
|
|
|
|
|
|
return ($x, $y); |
472
|
|
|
|
|
|
|
} |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
=head1 Git |
475
|
|
|
|
|
|
|
|
476
|
|
|
|
|
|
|
L<https://github.com/yvesago/WIoZ/> |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
=head1 AUTHORS |
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
Yves Agostini, C<< <yveago@cpan.org> >> |
481
|
|
|
|
|
|
|
|
482
|
|
|
|
|
|
|
=head1 LICENSE AND COPYRIGHT |
483
|
|
|
|
|
|
|
|
484
|
|
|
|
|
|
|
Copyright 2013 - Yves Agostini |
485
|
|
|
|
|
|
|
|
486
|
|
|
|
|
|
|
This program is free software and may be modified or distributed under the same terms as Perl itself. |
487
|
|
|
|
|
|
|
|
488
|
|
|
|
|
|
|
=cut |
489
|
|
|
|
|
|
|
|
490
|
|
|
|
|
|
|
1; |