Design of a Manual Calculation System of Drawing Quantity with "Read Schemata”
To solve the problem of "reliablity", calculation scope and the high thresholds in the operation of the 3D graphics automatic calculation quantity system in the practical use, "read schemata" graphics manual calculation quantity technology is analyzed. This technology has the features of direct visualization, clear presentation, no requirement for memory in work, revisability, meeting cost engineers work habits, low threshold in operation, wide application scope, easy proofreading and so on. The main function of graphics manual counting system is described with "reading schema". The functions of the drawing display and the manual calculation area are given. The experimental results show that the method is effective, feasible and superior to other 3D graphics quantity calculation system and can be applied in the quantity calculation of various professional engineering.