A Discussion on Triple Joined Point Terra Model and Making the Section of Computer-Aided Regional Geological Survey

It is difficult to collect data for multi-joined-point geologic structure in the system of computer-aidedregional geological survey.To found terra model and mathematic model is the root to settle the difficulty.If wecan do so,we can make Computer-Aided Regional Geological Survey more useful,and make terra working moreconvenient and efficient in the field work.The section plays an important role in geological survey,which makesthe geological phenomenon clearer.As is known the description of triple joined point Terra Model and Making the Section is an important con-tent of the research.In terms of the significance,the text mainly discusses the triple joined point Terra Modedescribed content and sequence.On the basis of those,the author chooses the Visual C~++ to design the sectionsystem.In the text,the section system is divided into three function models:data management,map edition and re-sult management.The author details the definitions of the structure of the data and divides the layer.