# coyote: CGMAPGRID__DEFINE

- coyote/Graphics
- coyote/Map Projections
- [Source code]

Description

      This object is a wrapper for the cgMap_Grid routine in IDL. It provides a simple
      way to allow map grids on images which use a cgMAP object to set up the map
      projection space. A map coordinate space must be in effect at the time the
      Draw method of this object is used.

Categories

      Graphics, Map Projections

Author

      FANNING SOFTWARE CONSULTING::
         David W. Fanning
         1645 Sheely Drive
         Fort Collins, CO 80526 USA
         Phone: 970-221-0438
         E-mail: david@idlcoyote.com
         Coyote's Guide to IDL Programming: http://www.idlcoyote.com

History

      Change History::
         Written by David W. Fanning, 7 November 2011.
         Modified AutoDrawGrid method to update, better-working method in cgMap_Grid. 28 Dec 2011. DWF.

Copyright

      Copyright (c) 2011, Fanning Software Consulting, Inc.
      e initialization method for the object.

Params

      class: out, optional, type=structure
         Occasionally, it is useful to have an object class definition as
         a structure variable. Using this output keyword will allow that.

Keywords

      success: out, optional, type=boolean
         Will be set to 1 on return, if the operation was successful. Otherwise,
         this value is set to 0.
      aws the map grid by calling cgMap_Grid.
      is method allows the user to get various properties of the object. In general,
      e same keywords that are used for the INIT method can be used here.
      is method allows the user to set various properties of the object. In general,
      e same keywords that are used for the INIT method can be used here.
      is is the clean-up routine for the object.
      is is the class definition module. Structures used to manipulate
      p projection and map datum information are also created here.