QTransform transform(2, 0, 0, 0, 1.5, 0, 50, 50, 1); QLine originalLine(0, 0, 100, 100); QLine transformedLine = transform.map(originalLine);
QImage originalImage("file.png"); QTransform transform; transform.rotate(45); QImage transformedImage = originalImage.transformed(transform);In both examples, the package library used is the Qt library.