在MFC平台下用opengl显示DEM

代码说明：

  在MFC平台下用opengl显示DEM，主要实现漫游操作，读取格网数据作为数据源。(MFC platform with opengl display DEM roaming operation, read the grid data as the data source.)

文件列表：

DEM
...\075007.grd,3461696,2011-06-30
...\Debug
...\.....\DEM.exe,127050,2012-05-30
...\.....\DEM.ilk,462820,2012-05-30
...\.....\DEM.obj,22990,2011-07-01
...\.....\DEM.pch,5797356,2011-06-30
...\.....\DEM.pdb,467968,2012-05-30
...\.....\DEM.res,7236,2011-07-01
...\.....\DEMDoc.obj,14741,2011-06-30
...\.....\DEMView.obj,40032,2012-05-30
...\.....\MainFrm.obj,20089,2011-06-30
...\.....\READ.obj,4120,2011-06-30
...\.....\ReadDEM.obj,7058,2011-07-01
...\.....\StdAfx.obj,107029,2011-06-30
...\.....\vc60.idb,238592,2012-06-14
...\.....\vc60.pdb,372736,2012-05-30
...\DEM.APS,28724,2012-05-24
...\DEM.clw,2280,2012-05-24
...\DEM.cpp,4155,2011-06-30
...\DEM.dsp,4796,2011-06-30
...\DEM.dsw,531,2011-06-30
...\DEM.exe,127067,2011-06-30
...\DEM.h,1323,2011-06-30
...\DEM.ncb,353280,2012-06-14
...\DEM.opt,370688,2012-06-14
...\DEM.plg,240,2012-06-14
...\DEM.rc,11736,2011-07-01
...\DEMDoc.cpp,1682,2011-06-30
...\DEMDoc.h,1442,2011-06-30
...\DEMView.cpp,7531,2012-05-30
...\DEMView.h,2405,2011-07-01
...\MainFrm.cpp,2504,2011-06-30
...\MainFrm.h,1581,2011-06-30
...\READ.cpp,509,2011-06-30
...\READ.h,474,2011-06-30
...\ReadDEM.cpp,1308,2011-06-30
...\ReadDEM.h,812,2011-06-30
...\ReadMe.txt,4239,2011-06-30
...\res

...\...\DEM.rc2,395,2011-06-30


...\resource.h,684,2011-07-01
...\StdAfx.cpp,205,2011-06-30
...\StdAfx.h,1178,2011-06-30