| 摘要 |
PURPOSE: An image map for drawing a reference point topography of an image through accurate location measurement is provided to apply the topography image within a drawing image by drawing the topography image of a building. CONSTITUTION: A plurality of position measuring units(100) includes a support stand(110), a head(120), a rolling globe(130), a control unit, a laser, an ultrasonic receiver and an ultrasonic transmitter. A light gun examines the laser light. The ultrasonic receiver includes a sensing module and a light receiving module. The ultrasonic transmitter transmits the ultrasonic wave. An image drawing unit completes a geographical feature image. |
