Automatic Drawing Of Geologic Section-map And Column-map By Computer

The Section-map, Column-map is the key and precursor chart during the all geology work and was draw by geologist frequently.The common methods for drawing Section-map and Column-map are handwork. However, the theory and the techniques developing of GIS have spurred the methods changing for automatic way.The thesis designed a data model for drawing Section-map and Column-map automatically, and designed a Drill Data-base based on the many drills data. The programs' writing uses the Visual C++, adopts the Object-oriented technique.This thesis completed code sum to about 10000 rows, A small CAD system is designed, besides suffice the need of base shape drawing, also including the two modules of automatically drawing of Section-map and Column-map. This CAD system can complete Section-map and Column- map automatically, also it's very easy to add new module because of the applications of the Object Oriented .In this thesis, I create a method of searching the least section to solve the section limitation and section vanish. This method can be used for reference to the area of computer Auto-drawing.