ClipperLib
forked from Javascript Clipper
Description
The Javascript Clipper library performs clipping and offsetting for both lines and polygons. All four boolean clipping operations are supported - intersection, union, difference and exclusive-or. Polygons can be of any shape including self-intersecting polygons.
Javascript Clipper is a port of Angus Johnson's Clipper library: https://sourceforge.net/projects/polyclipping/
LIVE DEMO: http://jsclipper.sourceforge.net/6.2.1.0/main_demo.html
Information and examples: http://jsclipper.sourceforge.net/6.2.1.0/
Donate Javascript Clipper Project: https://sourceforge.net/p/jsclipper/wiki/Donations/
Use cases:
- Over 1500 schools in the UK uses Javascript Clipper in Digimap for Schools service. Digimap for Schools is an online mapping service for use by teachers and pupils. Read more: https://mobilegeo.wordpress.com/ and http://digimapforschools.edina.ac.uk/cosmo-free/osmapper
Features
- Line and polygon clipping - intersection, union, difference & xor
- Line and polygon offsetting with 3 types of joining - miter, square and round
- Polygons can be of any shape, including self-intersecting polygons
- Minkowski Addition and Minkowski Difference functions included
- The library is written in Javascript
- Comprehensive documentation
- Demos use inline SVG and Canvas libraries
- The library is significantly faster than commercial alternatives
- Uses Tom Wu's fast big integer library
- UMD support
Categories
Algorithms, Graphics