4. Figure 4. General Outline of the crane self-balancing 2.1 Mechanical Design of the crane. To achieve the mechanical design of the tower crane, initially technical specifications are required, both the mechanical and the electrical and electronic components, such as motors, sensors, circuit cards, etc.
When to Use PNG. Use PNG when you need smaller file sizes with no loss in quality. PNG files are usually smaller than TIFFs, in my experience. PNG also supports alpha transparency (soft edges) and was developed to be a Web graphics replacement for GIF. Note that if you want to retain full transparency, you will need to save your PNG file as PNG-24 and not PNG-8. PNG-8 is useful for reducing the file size of PNG files when you don't need transparency, but it has the same color palette limitations as GIF files.
libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 20 years.