Method for achieving automatic aligning of screen windows based on world coordinates

The invention discloses a method for achieving automatic aligning of screen windows based on world coordinates. The method comprises the steps that when touch operation occurs on the terminal screen windows of a spliced screen control terminal controlling a spliced screen, the type of the touch operation is judged; the coordinate equal parameters of the spliced screen windows corresponding to the terminal screen windows on the spliced screen in the world coordinates of are acquired according to the operation type when the window movement operation is finished; the horizontal width parameter and vertical height parameter of a grid set at present of a terminal screen are acquired, and the aligning criterion parameters of the spliced screen window are determined according to the parameters of the spliced screen windows and the grid parameters; the aligning criterion parameters of the terminal screen windows are determined according to the aligning criterion parameters of the spliced screen windows; the spliced screen windows and the terminal screen windows are displayed according to the aligning criterion parameters. By means of the method, the problems that operation is complex, errors are produced easily and the display effect is affected during manual window aligning in the prior art can be solved.