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Through the "View Utilities" pull-down menu, four of \fBviewimage\fP's 
subforms can be accessed. The subforms deal with input of new images,
change of plot perspective, changing the colormap to one of the pre-defined
colormaps available, and changing of various relevant attributes.
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1) Input
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The first choice, \fIInput\fP, brings up the subform which allows 
you to input VIFF images for use as imagery data, elevation data, or
colormap data.
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2) Perspective
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The second subform, \fIPerspective\fP, lets you interactively change
the perspective from which the elevation data is currently displayed. 
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3) Colormaps
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The third subform, \fIColormaps\fP, allows you to install one of 16 
pre-defined colormaps on the imagery data that is displayed when the
elevation data is drawn with plot type color mesh or surface.
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4) Attributes
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The fourth subform, \fIAttributes\fP, allows you to change the attributes
of the current \fBviewimage\fP environment.  Here is where you can change
the plot type, change the sub-sample and height factors, turn the use of
imagery off or interpolation of imagery on, or set Proportional Plotting
to false.
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