ABSTRACT
The term Computer Aided Designing (CAD) stands for computer-aided design and is defined as the use of information technology in the design process. The CAD system is usually a combination of hardware and specifically designed software. The CAD systems help to reduce the design and development time of a particular product. The CAD packages have the ability to model the complete assemblies and analyze a virtual prototype for its performance. Some basic CAD systems make use of colored rectangles as yarn to give the fabric simulation. The width and height of these rectangles help to specify the yarn thickness and yarn spacing. Weave is the starting point for CAD of a particular fabric as it contains information about the appearance of yarns from both sides. The fabric simulation is the virtual fabric produced of a certain design before the production of actual fabric. The piled fabrics are produced by loops or strands of yarn raised over the surface of fabric.
