# Documentation of m_tbase

Global Index (all files) (short | long) | Local Index (files in subdir) (short | long)

## Function Synopsis

    [values,longs,lats]=m_tbase(varargin);

## Help text

     M_TBASE Contour elevation onto a map using the 5-minute TerrainBase database
            M_TBASE contours elevations at 1000m intervals for the map.
            M_TBASE(OPTN (,LEVELS) (,ARGS,...) ) lets you change various options.
            if OPTN=='contour', contour lines are drawn. for OPTN=='contourf',
            filled contours are drawn. LEVELS are the levels used, and ARGS
            are optional patch arguments of line types, colors, etc.

            [CS,H]=M_TBASE(...) allows access to the return arguments of the
            contour/contourf call.

            [ELEV,LONG,LAT]=M_TBASE([LONG_MIN LONG_MAX LAT_MIN LAT_MAX])
            extracts elevation data for the given lat/long limits (without plotting).

            See also M_PROJ, M_GRID, M_COAST

## Cross-Reference Information

This function calls | This function is called by
--- | ---
m_contour m_contourf m_proj | m_demo

Pierre-Michel THEVENY <theveny@dt.insu.cnrs.fr>