Finding the coordinates of a point contained by a trapezoid programmatically

Finding the coordinates of a point contained by a trapezoid programmatically

References

Reference NO 1

http://stackoverflow.com/questions/15194392/finding-the-coordinates-of-a-point-contained-by-a-trapezoid-programmatically

Reference NO 2

http://stackoverflow.com/questions/10534420/how-to-find-a-point-in-the-path-of-a-line

Reference NO 3

https://developer.apple.com/library/mac/documentation/cocoa/conceptual/CocoaDrawingGuide/Paths/Paths.html

Reference NO 4

http://en.wikipedia.org/wiki/Shadow_mapping

Reference NO 5

http://www.cut-the-knot.org/htdocs/dcforum/DCForumID6/637.shtml

Reference NO 6

http://math.stackexchange.com/questions/tagged/geometry

Reference NO 7

http://books.evc-cit.info/ch06.php

Reference NO 8

http://www.wavemetrics.com/products/igorpro/newfeatures/previous/since5.htm