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Editing: Scatter.pm
package Spreadsheet::WriteExcel::Chart::Scatter; ############################################################################### # # Scatter - A writer class for Excel Scatter charts. # # Used in conjunction with Spreadsheet::WriteExcel::Chart. # # See formatting note in Spreadsheet::WriteExcel::Chart. # # Copyright 2000-2010, John McNamara, jmcnamara@cpan.org # # Documentation after __END__ # require Exporter; use strict; use Spreadsheet::WriteExcel::Chart; use vars qw($VERSION @ISA); @ISA = qw(Spreadsheet::WriteExcel::Chart Exporter); $VERSION = '2.40'; ############################################################################### # # new() # # sub new { my $class = shift; my $self = Spreadsheet::WriteExcel::Chart->new( @_ ); bless $self, $class; return $self; } ############################################################################### # # _store_chart_type() # # Implementation of the abstract method from the specific chart class. # # Write the SCATTER chart BIFF record. Defines a scatter chart type. # sub _store_chart_type { my $self = shift; my $record = 0x101B; # Record identifier. my $length = 0x0006; # Number of bytes to follow. my $bubble_ratio = 0x0064; # Bubble ratio. my $bubble_type = 0x0001; # Bubble type. my $grbit = 0x0000; # Option flags. my $header = pack 'vv', $record, $length; my $data = ''; $data .= pack 'v', $bubble_ratio; $data .= pack 'v', $bubble_type; $data .= pack 'v', $grbit; $self->_append( $header, $data ); } ############################################################################### # # _store_axis_category_stream(). Overridden. # # Write the AXIS chart substream for the chart category. # # For a Scatter chart the category stream is replace with a values stream. We # override this method and turn it into a values stream. # sub _store_axis_category_stream { my $self = shift; $self->_store_axis( 0 ); $self->_store_begin(); $self->_store_valuerange(); $self->_store_tick(); $self->_store_end(); } ############################################################################### # # _store_marker_dataformat_stream(). Overridden. # # This is an implementation of the parent abstract method to define # properties of markers, linetypes, pie formats and other. # sub _store_marker_dataformat_stream { my $self = shift; $self->_store_dataformat( 0x0000, 0xFFFD, 0x0000 ); $self->_store_begin(); $self->_store_3dbarshape(); $self->_store_lineformat( 0x00000000, 0x0005, 0xFFFF, 0x0008, 0x004D ); $self->_store_areaformat( 0x00FFFFFF, 0x0000, 0x01, 0x01, 0x4E, 0x4D ); $self->_store_pieformat(); $self->_store_markerformat( 0x00, 0x00, 0x02, 0x01, 0x4D, 0x4D, 0x3C ); $self->_store_end(); } 1; __END__ =head1 NAME Scatter - A writer class for Excel Scatter charts. =head1 SYNOPSIS To create a simple Excel file with a Scatter chart using Spreadsheet::WriteExcel: #!/usr/bin/perl -w use strict; use Spreadsheet::WriteExcel; my $workbook = Spreadsheet::WriteExcel->new( 'chart.xls' ); my $worksheet = $workbook->add_worksheet(); my $chart = $workbook->add_chart( type => 'scatter' ); # Configure the chart. $chart->add_series( categories => '=Sheet1!$A$2:$A$7', values => '=Sheet1!$B$2:$B$7', ); # Add the worksheet data the chart refers to. my $data = [ [ 'Category', 2, 3, 4, 5, 6, 7 ], [ 'Value', 1, 4, 5, 2, 1, 5 ], ]; $worksheet->write( 'A1', $data ); __END__ =head1 DESCRIPTION This module implements Scatter charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method: my $chart = $workbook->add_chart( type => 'scatter' ); Once the object is created it can be configured via the following methods that are common to all chart classes: $chart->add_series(); $chart->set_x_axis(); $chart->set_y_axis(); $chart->set_title(); These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below. =head1 Scatter Chart Methods There aren't currently any scatter chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>. =head1 EXAMPLE Here is a complete example that demonstrates most of the available features when creating a chart. #!/usr/bin/perl -w use strict; use Spreadsheet::WriteExcel; my $workbook = Spreadsheet::WriteExcel->new( 'chart_scatter.xls' ); my $worksheet = $workbook->add_worksheet(); my $bold = $workbook->add_format( bold => 1 ); # Add the worksheet data that the charts will refer to. my $headings = [ 'Number', 'Sample 1', 'Sample 2' ]; my $data = [ [ 2, 3, 4, 5, 6, 7 ], [ 1, 4, 5, 2, 1, 5 ], [ 3, 6, 7, 5, 4, 3 ], ]; $worksheet->write( 'A1', $headings, $bold ); $worksheet->write( 'A2', $data ); # Create a new chart object. In this case an embedded chart. my $chart = $workbook->add_chart( type => 'scatter', embedded => 1 ); # Configure the first series. (Sample 1) $chart->add_series( name => 'Sample 1', categories => '=Sheet1!$A$2:$A$7', values => '=Sheet1!$B$2:$B$7', ); # Configure the second series. (Sample 2) $chart->add_series( name => 'Sample 2', categories => '=Sheet1!$A$2:$A$7', values => '=Sheet1!$C$2:$C$7', ); # Add a chart title and some axis labels. $chart->set_title ( name => 'Results of sample analysis' ); $chart->set_x_axis( name => 'Test number' ); $chart->set_y_axis( name => 'Sample length (cm)' ); # Insert the chart into the worksheet (with an offset). $worksheet->insert_chart( 'D2', $chart, 25, 10 ); __END__ =begin html <p>This will produce a chart that looks like this:</p> <p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/scatter1.jpg" width="527" height="320" alt="Chart example." /></center></p> =end html =head1 AUTHOR John McNamara jmcnamara@cpan.org =head1 COPYRIGHT Copyright MM-MMX, John McNamara. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
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