| The plan of construction schedule is the primary content of construal organization and the schedule arrangement in detail made by start-end time of each branch of the project based on the construal plan stated under the details stated in the contractual compact. The conventional representation method of construction schedule can be described as plane chart, vertical chart and net chart. With the development of engineering scale and contractual techniques, the way only in charts has already not been meet the requirement of the mastering of the whole contractual schedule for technicians. While the technique of Computer Visualized Simulation provides it a effective method.This paper brings forward the primary theory of three-dimensional Visualized Simulation for the contractual schedule for dams, and it opens out the Visualized software based on VC++ OpenGL. It realizes organic combination for Visualized technique and Simulation technique. By the vivid descriptions in three-dimensional pictures, the software provides a quickly method for mastering the whole contractual process, and improves the modern level for the organizations of dam hugely. It can carry out the several following operations:(1) The read for data texts. If we deposit the dam's three-dimensional data in list in the texts, it can read them automatically.(2) The three-dimensional display for the visage of the dam, such as the monomer and the whole net pictures during the period of the dam's contraction, romantic picture, section picture, horizontal line picture, column picture, and so on.(3) The edition of the lighting and material. Clients can edit the lighting and material according to their requirements.(4) The sketch transformation operation. It can carry on to the born sketch move, Query function. It can search some information about the dam and the software and the quantity of the earthwork.This system has the friendly operation interface, operates easily, conveniently and fast etc. as well.
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