Name

---

LONTV

Purpose

---

      Fix a lat/lon grid that you want to map on a globe with
      MAP_PATCH or MAP_IMAGE so it works with IDLs buggy routines

Category

---

      SNOE, Imaging, Map

Calling Sequence

---

      Result = LONTV( Array )

Inputs

---

      Array: An array of any size, where the X dimension is
          longitude, and Y is data

Outputs

---

      The array is returned with the first column duplicated as the
      last column.

Example

---

    test = REBIN( BYTSCL( BINDGEN(15) ), 15, 2 )
    tv, map_image( test, bilinear=0 )
    ;;; The max color is 1/2 as wide as all the rest!
    tv, map_image( lontv(test), bilinear=0 )

Modification History

---

  Written by: Barth
2002-09-25: Added docs