2D and 3D Graphics

Qt provides excellent support for 2D and 3D graphics. Qt’s 2D graphics classes

support raster and vector graphics, and can load and save a wide and extensible

range of image formats. Qt can draw Unicode rich text, rotated and sheared as

required.
Graphics are drawn using device-independent painter objects that allow the developer to

reuse the same code to render graphics on different types of device, represented in Qt

by paint devices .
Support for device-independent colors is provided by the QColor class. Colors are specified

by ARGB, AHSV, or ACMYK values, or by common names (e.g., “skyblue”). QColor’s color

channels are 16 bits wide, and colors can be specified with an optional level of opacity; Qt

automatically allocates the requested color in the system’s palette, or uses a similar color

on color-limited displays.