=head1 NAME

pto_lensstack: modify assigned lenses and stack in pto files

=head1 SYNOPSIS

B<pto_lensstack> [options] input.pto

=head1 DESCRIPTION

B<pto_lensstack> can manipulate lenses and stacks in Hugin .pto project files. This is intended for use in scripting.

=head1 USAGE

   pto_lensstack --output=output.pto --new-lens|--new-stack|--change-lens|--change-stack images input.pto

=head1 OPTIONS

=over

=item B<--new-lens> 

=item B<--new-stack> 

For assigned a new lens or stack to an image provide a list of image numbers. The counting starts with zero. Several images can be given at same time. Separate them with a comma.

Examples:
  pto_lensstack --new-lens i1,i3 input.pto
  pto_lensstack --new-stack i2,i4 input.pto

will assign a new lens to image 1 and 3 and a new stack to images 2 and 4.


=item B<--change-lens> 

=item B<--change-stack> 

For changing the lens or the stack provide a list of image numbers and the new lens/stack number. For both the counting starts with zero and you can supply several images separated by a comma at the same time.

Examples: 
  pto_lensstack --change-lens i1=4,i5=1 input.pto
  pto_lensstack --change-stack i2=0,i4=0 input.pto

=item B<-o|--output>

Output a pto file with the given filename. If not given it will append "_lens" to the input filename. 


=item B<-h|--help>

Display help

=back

=head1 AUTHORS

Thomas Modes
