XSVG

Some code for arc handling is derived from code from the XSVG project.

Used in the Qt SVG library.

The sources can be found in qt5/qtsvg/src/svg/qtsvghandler.cpp.

 Copyright 2002 USC/Information Sciences Institute

Historical Permission Notice and Disclaimer - sell variant.

 Copyright  2002 USC/Information Sciences Institute

 Permission to use, copy, modify, distribute, and sell this software
 and its documentation for any purpose is hereby granted without
 fee, provided that the above copyright notice appear in all copies
 and that both that copyright notice and this permission notice
 appear in supporting documentation, and that the name of
 Information Sciences Institute not be used in advertising or
 publicity pertaining to distribution of the software without
 specific, written prior permission.  Information Sciences Institute
 makes no representations about the suitability of this software for
 any purpose.  It is provided "as is" without express or implied
 warranty.

 INFORMATION SCIENCES INSTITUTE DISCLAIMS ALL WARRANTIES WITH REGARD
 TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL INFORMATION SCIENCES
 INSTITUTE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
 OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 PERFORMANCE OF THIS SOFTWARE.