THE METHOD TO GENERATE AUTOMATICALLY FROM 3-DIMENSIONAL DATA TO 2-DIMENSIONAL DESIGN, CONSTRUCTION OR INSTALLATION DRAWING FOR PLANT ENGINEERING AND SHIPBUILDING

摘要

A method to automatically draw 2-dimentional design of 3-dimentioal model data to construct or install products in plant engineering and shipbuilding is provided to draw 2-dimentional construction or installation drawing by using a computer in order to embody 2-dimational drawing for 3-dimentional model by using different types of model data which are general 3-dimentional modeling programs for plant and ship design, such as PDS, SmartPlant 3D, PDMS, AutoPlant, PlantSpace, and Tribon. Through a user interface, the method for automatically drawing 2-dimentional design of 3-dimentioal model data to construct or install products in plant engineering and shipbuilding selects a 3-dimentional model graphic file made from the 3-dimentional modeling program, a path connecting to 3-dimentional model database, a path that the final drawing is printed, and one of piping, electrical instrument or a part of HVAC(Heating, Ventilating and Air Conditioning). The method comprises the following steps: an environment setting up step which selects and stores drawing information to draw a pertinent part on the 2-dimentional drawing(100); a common format conversion step that the 3-dimentional model graphic file and 3-dimentional model data base are connected according to the set up environment information, the 3-dimentional data corresponded to the selected part are extracted, and then the 3-dimentional model data are converted to a common format according to the design form taken up modeling(400); a 2-dimentional drawing data conversion step that the 3-dimentional data converted to a common format are converted to the 2-dimentional drawing data(500); a space search step that location to write label and size on the data converted to the 2-dimentional data is searched and selected(600); and a step to write label and size on the 2-dimentional data passing through the space search step(700).