3Bao,S.T.,Yu,Y.G.,Xia,B.,et al.,2005.GIS technology applicated in engineering geology.Geotechnical Investigation & Surveying,(2):1-3(in Chinese with English abstract).
4Wang,Y.,1997.Theory of object-oriented and practice of C++.Tsinghua University Press,Beijing.3 (in Chinese).
5Wu,X.C.2002.Principle and method of geography information system.Electronics Industry Press,Beijing.86 (in Chinese).
6Zhong,B.R.,Du,H.,2004.Design of inplementation of a multi-functional log diagram drawing system.Journal of Yangzte University (Natural Science Edition),1(4):48-50(in Chinese with English abstract).
