Pitney Bowes MapInfo Vertical Mapper - Manual (Page 198)

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Vertical Mapper 3.7
colour can be generally seen in three different locations: the grid base, the grid apron, and the inside
holes within the grid area (see the next figure). When this setting is chosen, a standard Windows
Colour dialog box opens.
The areas affected by the Null Value Colour setting are easily identified.
The Backdrop Colour button enables you to set the colour applied to the backdrop or background
of the rendered scene. When this setting is chosen a standard Windows Colour dialog box appears.
The Backdrop Image button enables you to set the .bmp image that is applied to the background of
the scene (see the next figure).
An example of a scene using a backdrop image.
The Loaded Grids Tab
The Loaded Grids tab contains settings that directly affect the display of the highlighted grid file or
drape file listed in the Grid Layer Control. The name of the highlighted grid is displayed as the title on
the Loaded Grids tab (SeattleElevation in the next dialog box).