CAD package. CYCAS is a 2D+3D CAD package for drafting and design in high quality and for creating 3D presentations and technical illustrations easily. Some of its features include an easy-to-handle user interface, special architectural elements and functions, a WYSIWYG display, printing, plotting, import and export filters, photorealistic rendering with POV-Ray, documentation and tutorials, example drawings and an extendable 2D/3D symbols library.