A method for determining a type of a measurement includes receiving touch data via a touchscreen; automatically identifying a plurality of cursor points in the touch data using a processor; and automatically determining a measurement type based on the touch data using the processor. A method for determining a geometric property of an object further includes displaying an image of the object on the touchscreen and automatically determining the geometric property corresponding to the plurality of cursor points and the determined measurement type using the processor. A device for determining the geometric property includes an imager for obtaining the image; the touchscreen; and the processor for identifying a plurality of cursor points in the touch data, determining a measurement type of the geometric property using the touch data, and automatically determining the geometric property corresponding to the plurality of cursor points and the determined measurement type.