Abstract: A device and method for precise selection of a space coordinate by means of a digital image. A digital image of surface elements in a three-dimensional space and a point cloud are provided, with space coordinates allocated to the points which form the point cloud, and surface elements allocated to the points in the three-dimensional space. The surface elements in the three-dimensional space are visualised by a first display. A pixel of the digital image is tagged, and approximated space coordinates for the tagged pixel are determined, which correspond to the surface element visualised by the tagged pixel in three-dimensional space. Subsequently, a supplementary view is superimposed, which displays the points of the point cloud located within a limited three-dimensional environment of the approximate space coordinates determined for the tagged pixel in a second display. Finally, a point of the point cloud is selected in the supplementary view.