GGU-CAD: "Distort" menu item

In contrast to the menu item "Window/Rotate" objects can be rotated using different angles for the x- and y-directions. After selecting a window area and left-clicking, the objects within the window are first displayed in negative to indicate the objects to which the action applies. The "Distortion angles" for the x- and y-directions are selected in the following dialog box. The rotation axes run through the respective centres. The action can be undone using [Backspace].