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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/6.4.2.2/main_demo.html
LIVE DEMO (FPoint):
http://jsclipper.sourceforge.net/6.4.2.2_fpoint/main_demo.html
Information and examples:
http://jsclipper.sourceforge.net/6.4.2.2
Information and examples (FPoint):
http://jsclipper.sourceforge.net/6.4.2.2_fpoint
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. 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
- Faster and lighter FPoint version available
Project Samples
