DoubleCAD XT PRO Professional enhanced version of the popular analog package AutoCAD LT. The program is perfect for the most demanding task of building designs and accurate, detailed twodimensional drawings. With this package DoubleCAD XT users can open and edit files in DWG, including elements of walls and structures in the format ADT (AutoCAD Architectural Desktop). In addition, this package supports automatic alignment blocks binding of priority items, the editor of the hands and intelligent means of measurement of parts in the drawing. In addition to tools, repetitive AutoCAD LT, DoubleCAD XT package contains many tools that can greatly accelerate the work with the drawings. Users can create special lines, circles and arcs on a tangent, perpendicular and parallel to existing lines. Powerful editing tools allow you to work with drawings quickly and efficiently.

So you have got an idea for an iPhone app along with everyone else on the planet. Set your app apart with elegant design, efficient usability, and a healthy dose of personality. This accessible, well written guide shows you how to design exceptional user experiences for the iPhone and iPod Touch through practical principles and a rich collection of visual examples.