Research And Exploitation Of Auto-Plotting Geology Columnar Section And Ledge Comparison Diagram

Geology columnar section and ledge comparison diagram are two important diagram in geology diagram, and they are applied to mine production, and they are basic foundation and precondition that we solve question on geology. According to application, geology columnar section may be classified as synthesis columnar section and drill columnar section, and there are the same way to plot diagram. Ledge comparison diagram is a diagram based columnar section's data, and it's link is to stand out ledge information.With object- produced application point of view, this paper analyzes characteristic of drill's data, sums drawing's class, data modeling and knowledge system of auto_plotting drawing and elaborates the fundamental principle of auto-plottinggeology columnar section and ledge comparison diagram by computer, describes data organization structure, symbols design, the method of filling symbols in columnar section and the method of words' auto_ newline and presents a valid algorithm for plotting buffer line based on segment, then explains the method of auto-plotting comparison diagram. According to the theories, the system of auto-plotting columnar section and comparison diagram is developed with object-oriented program design method, which provides the interface with other GIS softwares and reaches the aim of data sharing. The system has been applied successfully in practice.