WELCOME TO THE LIVE TOOLS DEMO


   This applications shows how visualizations created with
   the live tools routines can be added to an application.

   This demonstration shows four types of visualizations
   which can created:

      Plots, using the LIVE_PLOT routine.
      Image displays, using the LIVE_IMAGE routine.
      Surface displays, using the LIVE_SURFACE routine.
      Contouring, using the LIVE_CONTOUR routine.

   Each of the visualizations can be manipulated by making a
   selection with the cursor.  For example, pressing the mouse
   button over the surface in the LIVE_SURFACE visualization
   and dragging allows interactive rotation of the whole
   surface visualization.  Double clicking on the surface
   will bring up the property sheet for the surface, allowing
   modification of the minimum and maximum values displayed,
   the color, the type of display (mesh or shaded, etc.),
   shading method, and other properties.

   See the documentation for the LIVE routines to see other
   options which may be manipulated.


   Each of the LIVE routines is written in IDL code and
   is located in the lib subdirectory of the IDL distribution.



   MENU OPTIONS
   ------------
   File Menu:
      Select Quit to exit the Demo and return 
      to the IDL Demo system.

   About Menu:
      Select "About LIVE TOOLS" for information 
      about the LIVE TOOLS Demo.


   FEATURES
   --------

   <<LIVE_PLOT>> button
      
      Displays a plot of a curve using LIVE_PLOT.
      Double click on the plot to bring up the property
      sheet.  Try changing a property such as the
      "Color", "Line Type", or "Thickness".

   <<LIVE_IMAGE>> button
      
      Displays an image using LIVE_IMAGE.
      Double click on the image to bring up the property
      sheet.  Try changing a property such as the "Color
      Table" in use for the image.

   <<LIVE_SURFACE>> button
      
      Displays a visualization of a two-dimensional
      data array as a surface using LIVE_SURFACE.
      Double click on the image to bring up the property
      sheet.  Try changing a property such as the "Maximum
      Value" to be displayed, the "Type" of display, or
      the "Shading" method (when Type is set to "Solid".

   <<LIVE_CONTOUR>> button
      
      Displays a visualization of a two-dimensional
      data array as set of contours  using LIVE_CONTOUR.
      Double click on the image to bring up the property
      sheet.  Try changing a property such as the "Number
      of Levels", or "Color", "Line Style" or "Thickness"
      for a contour line.

   <<Load New Data>> button
      
      Display a dialog allowing selection of another
      data set from the IDL distribution.  Once a selection
      is made and the data is read into an IDL variable, the
      LIVE_CONTROL routine is used to update the current
      visualization with the new data.