View source for ConvertGRIDtoVec3

{{Template:FunctionInfo|fName=          ConvertGRIDtoVec3|fDescription=   Converts an MGRS grid table into a 3D vector by transforming geographic coordinates using UTM zone and MGRS digit string, then converting to local origin coordinates with y value derived from terrain height.|parentFile=     cmm.positionFunctions.lua|syntax=         CMM.ConvertGRIDtoVec3(GRID <TBL>)|return=         table or nil|returnDesc=     Returns a vec3 table with x, y, z coordinates if input is valid; returns nil if input is invalid or missing required fields.|example=        CMM.ConvertGRIDtoVec3({UTMZone = 33, MGRSDigraph = "123456"})|exampleDesc=    Transforms MGRS grid data into a 3D position vector using UTM zone and digit string, retrieves terrain height at the calculated position, and returns the resulting coordinates or nil if input is invalid.|related=        |note=           |envType= CMM|par1=         table GRID|reqType1=     table|reqName1=     GRID|desc1=       Table containing MGRS grid data with UTMZone and MGRSDigraph fields, used to derive geographic coordinates.}}