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4. CRC Cards  
 

THUMBNAIL MAP VIEWER
Give overview of area GlMapWindow 
Keeps track of all Terrain Map windows Terrain Map
Exit system and close all Terrain Map windows Terrain Map
Select region and pass necessary information for rendering a terrain map TerrainMap


GLMapWindow
Draws a Rendered Map from Data Points and Triangle Data  
Takes a new z factor and formats color data TerrainMap
Redraws map when user exaggerates z-coordinates TerrainMap


TERRAIN MAP
Displays a user-selected region in a single, separate window GlMapWindow
Redisplays map for Z-factor scaling GlMapWindow 
Displays color legend GlMapWindow


DataAbstraction
Parses a given file and puts points into a matrix              
Triangulates data and stores vertices              
Stores the maximum and minimum X, Y, and Z values from a file              


GlMath
Implements specialized math functions not found in any standard header files