| 摘要 |
A computer aided coordinate digitizing system is arranged to read data from construction drawings and make construction estimates from the data. A digitizing device determines a series of X-Y coordinate positions on a flat surface by means of a pointer placed at selected positions on the surface and a sensor assembly for detecting the position of the pointer. The device generates X-Y coordinate signals which are transmitted to a computer associated with the device. The computer is programmed to use the received X-Y coordinate signals to perform calculations in response to entry of computer control functions by an operator using a voice recognition unit which converts vocal commands into computer control signals to operate the computer and initiate the selected computer programs for performing construction estimates. |
