Name

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      CATCOLORBAR

Purpose

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      The purpose of this routine is to implement a colorbar object as a selectable object.
      The colors for the color bar can be passed into the program as a COLORTOOL object
      with the COLOR_OBJECT keyword. A gray-scale color table with 256 colors is loaded
      by default.

Authors

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        FANNING SOFTWARE CONSULTING BURRIDGE COMPUTING
        1645 Sheely Drive 18 The Green South
        Fort Collins Warborough, Oxon
        CO 80526 USA OX10 7DN, ENGLAND
        Phone: 970-221-0438 Phone: +44 (0)1865 858279
        E-mail: davidf@dfanning.com E-mail: davidb@burridgecomputing.co.uk

Category

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      Objects.

Syntax

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      newObject = Obj_New("CATCOLORBAR", ...)
      drawObject -> Add, newObject

Superclasses

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      SELECTABLEOBJECT
      CATDATAATOM
      CATATOM
      CATCONTAINER IDLITCOMPONENT
      IDL_CONTAINER

Class Structure

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  class = { CATCOLORBAR, $
            bar: Obj_New(), $ ; The colorbar image.
            charsize: 0.0, $ ; The character size of the annotation.
            divisions: 0L, $ ; The number of major tick marks.
            extra: Ptr_New(), $ ; Placeholder for extra keywords.
            font: 0L, $ ; The font to use for annotations.
            format: "", $ ; The annotation formating.
            layerObject: Obj_New(), $ ; An optional CATLAYER object for holding the inserted selectable object.
            minor: 0L, $ ; The number of minor tick marks.
            ncolors: 0L, $ ; The number of colors in the colorbar.
            range: FltArr(2), $ ; The range of values displayed on the colorbar.
            right: 0L, $ ; The flag for text on RIGHT of vertical colorbars.
            thickness: 0.0, $ ; The thickness of the selectable object.
            ticklen: 0.0, $ ; The length of the tick marks.
            tickv: Ptr_New(), $ ; Values for the tick marks.
            title: "", $ ; The title string for the colorbar.
            top: 0L, $ ; The flag for text on TOP of horizontal colorbars.
            vertical: 0L, $ ; The flag for a vertical colorbar.
            INHERITS SELECTABLEOBJECT $
          }

Messages

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  CATCOLORBAR_CHANGED: This message is sent whenever SetProperty method is called and the NOMESSAGE keyword
                          is NOT set.

Modification History

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    Written by: David W. Fanning, April 17, 2005.
    Added automatic True-Type fonts for PostScript output, if Hershey fonts would otherwise
        be selected. 1 August 2006. DWF.
    Added MATCHPARENT keyword to INIT method. 2 August 2006. DWF.