Flip Image In Qt. No matter what your rotation center was the automatic. This means that the method ensures no clipping takes place by appending the canvas.
180 4 the 0th row is at the visual bottom of the image and the 0th column is the visual left side. The resulting points can then be used to calculate your minimum bounding rectangle by looking at each point and finding both the minimum and maximum x and y values. No matter what your rotation center was the automatic.
To do this you could take each corner point of your image rectangle and rotate them around the center.
The source of the image is specified as a url using the source property. Browse other questions tagged c qt image rotation qpainter qpixmap or. The pixmap produced is the smallest pixmap that contains all the transformed points of the original pixmap. Rather than regurgitating the answer this link explains how to do the rotation and maintain the original size of the image.