Pitney Bowes MapInfo Vertical Mapper - Manual (Page 204)

Working with Grid Layers
202
Vertical Mapper 3.7
Working with Grid Layers
The Layer/Grid Height list in the Scene Properties dialog box displays the grids and drape files that
are loaded into the memory of GridView.
The master grid is the first grid loaded into the Layer/Grid Height list box. Any x- or y- location or
distance setting is specified in the coordinate units of the master grid. In any single GridView
session, only one grid can be used as the master grid. The master grid is identified by the icon to the
left of the grid name. Once the master grid has been specified, it cannot be changed.
The Visibility check box enables you to choose whether the grids or drapes will be rendered in the
scene.
The Load button enables you to add additional grids or drape files to the list box. When loading a
drape file, the selected drape file will be applied to the highlighted grid in the list box. If this drape file
does not coincide with the highlighted grid, a warning message appears. More than one drape file
can be loaded for any one grid. However, only one drape per grid can be visible at a time.
The Grid Height column of the Layer/Grid Height list box refers to the vertical distance the grid will
be drawn at above the minimum value of the master grid. This distance value is specified in the grid
coordinates of the master grid. All grids listed in the list box will be displayed in the order specified by
the entered Grid Height value. The number of decimal places displayed in this setting can be
modified in the GridView Preferences dialog box.
The GridView Menus
Once you render a scene, you can access the GridView menus.
The File Menu
The Open command enables you to add more grids to the rendered scene. It is similar to the Load
button in the 3D Viewer: Scene Properties dialog box. Only grids can be opened with this feature.
The Close All command closes all currently open grid and drape files.
The Export to .bmp & .tab command creates a Windows bitmap of the rendered scene and a
MapInfo .tab file so that the image can be viewed in MapInfo Professional. The resolution of the
bitmap corresponds to the settings in the Bitmap Size section on the Surface and Lighting tab. For
the best results make sure the Height or Width setting (whichever is smallest) in the Bitmap Size
section is set to at least 2 000 pixels.