;+
; @file_comments
;
;
; @categories
;
;
; @param MASKENTREE {in}{optional}{type=2d array}
; It is a 2d array which will serve to mask the field we will trace after with CONTOUR,
; ...TRIANGULATION=triangule(mask)
; If this argument is not specified, the function use tmask
;
; @keyword BASIC
; Specify that the mask is on a basic grid (use the triangulation for vertical cuts and hovmoellers)
;
; @keyword COINMONTE {type=array}
; To obtain the array of "ascending land corner" to be treated with
; completecointerre.pro in the variable array instead of make it pass by the global
; variable twin_corners_up.
;
; @keyword COINDESCEND {type=array}
; See COINMONTE
;
; @keyword _EXTRA
; Used to pass keywords
;
; @returns
;
; @uses
;
; @restrictions
;
; @examples
;
; @history
;
; @version
; $Id$
;
; @todo
; seb
;
;-
FUNCTION triangule, maskentree, BASIC=basic $
                  , COINMONTE=coinmonte, COINDESCEND=coindescend, _EXTRA=ex
;
  compile_opt idl2, strictarrsubs
;
@common
;
  szmsk = size(maskentree)
  IF szmsk[0] EQ 0 THEN BEGIN
    nx = jpi
    ny = jpj
  ENDIF ELSE BEGIN
    nx = szmsk[1]
    ny = szmsk[2]
  ENDELSE
  IF nx EQ 1 OR ny EQ 1 THEN return, -1
;
  IF arg_present(coinmonte) THEN coinmonte = 1
  IF arg_present(coindescend) THEN coindescend = 1
;
   if keyword_set(basic) then $
     return, triangule_c(maskentree, /BASIC, COINMONTE = coinmonte $
                         , COINDESCEND = coindescend, _extra = ex)
;
   if n_elements(key_gridtype) EQ 0 then key_gridtype = 'c'
   if n_elements(maskentree) EQ 0 then maskentree = tmask[*, *, 0]
   case strmid(key_gridtype, 0, 1) of
      'e':res = triangule_e(maskentree, _extra = ex)
      'c':res = triangule_c(maskentree, COINMONTE = coinmonte, COINDESCEND = coindescend, _extra = ex)
   endcase
   return, res
end