|Subject:||enhancements to linedash() method|
|Date:||Tue, 02 Sep 2014 11:41:14 -0400|
|From:||Phil M Perry <email@example.com>|
PDF::API2 v2.022 Perl 5.16.3 Windows 7 severity: Wishlist The linedash() method in Content.pm allows up to two lengths for "on" and "off" dashed lines. The PDF spec, while limited to one set of on/off lengths, also permits a starting offset (in points) into the linedash array. It might be useful to allow an optional additional parameter on the linedash() method, to give a starting offset and pass it to PDF. PDF limits dashed lines to two lengths (on, off). We should consider adding an enhanced linedash() method that permits more than two lengths, possibly permitting a very complex line pattern. It could even have additional parameters to change linewidth and strokecolor over the course of a pattern, and even include characters and symbols! At the PDF::API2 level, the line produced would have to be broken down into a number of more basic calls, and "bent" around corners (who knows what can be done on curved lines!). Thus, it would not be a trivial exercise. There are some optional hash parameters in linedash() whose purpose is unclear (and undocumented). Perhaps someone started on this enhanced linedash some time ago?