Manual Reference Pages - CAD::DRAWING::CALCULATE::FINITE (3)
CAD::Drawing::Calculate::Finite - Vector graphics and limited space.
This module is intended as a back-end to CAD::Drawing for methods
specific to finite formats (and entities) like images and postscript.
Eric L. Wilhelm <ewilhelm at cpan dot org>
This module is copyright (C) 2004-2006 by Eric L. Wilhelm. Portions
copyright (C) 2003 by Eric L. Wilhelm and A. Zahner Co.
This module is distributed under the same terms as Perl. See the Perl
source package for details.
You may use this software under one of the following licenses:
(1) GNU General Public License
(found at http://www.gnu.org/copyleft/gpl.html)
(2) Artistic License
(found at http://www.perl.com/pub/language/misc/Artistic.html)
This software is distributed with ABSOLUTELY NO WARRANTY. The author,
his former employer, and any other contributors will in no way be held
liable for any loss or damages resulting from its use.
The source code of this module is made freely available and
distributable under the GPL or Artistic License. Modifications to and
use of this software must adhere to one of these licenses. Changes to
the code should be noted as such and this notification (as well as the
above copyright information) must remain intact on all copies of the
Additionally, while the author is actively developing this code,
notification of any intended changes or extensions would be most helpful
in avoiding repeated work for all parties involved. Please contact the
author with any such development plans.
Performs extents and scaling to fit entire drawing within a
bound. Returns the scale which is required to create the fit.
$scale = $drw->fit_to_bound(\@bound, \@border, \%opts);
@bound arg is a rectangle ([0,0],[11,8.5])
@border is ([$left_sp, $bottom_sp], [$right_sp, $top_sp])
%opts are weird
Returns a polyline in terms of image pixels. If a rectangle was stored
in the image, translates this to a polyline that will be clockwise from
lower-left after being switched to world coordinates.
If there are no clip points, the image boundary will be returned.
Image Pixel Calculations
These allow you to translate between drawing space and image space.
Returns the ($i,$j) pixel in (left-handed (typical)) image coordinates
corresponding to the [$x,$y] value of @point.
Floating point values will be returned. Do your own rounding!
Returns the world ($x, $y) location corresponding to the image pixels in
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