\b;Instruction \c;topo\n;
Syntax:
\s;\c;topo ( position );\n;

Returns the altitude of the ground at a give position. The altitude zero corresponds to sea level. A negative value indicates that at this position ground is covered with water. 

\t;position: \c;\l;point\u cbot\point;\n;
Coordinates of the position whose altitude you want to know. 

\t;Return value: \c;\l;float\u cbot\float;\n;
Altitude of the ground at the given position.

\t;See also
\l;Programming\u cbot;, \l;types\u cbot\type; and \l;categories\u cbot\category;.
