Open Printable/Searchable Copy - Global Mapper

Global Mapper User's Manual
which would still allow the bridge to match up (NOTE: these values assume a vertical exaggeration value of
3.0).
When extruding to the surface, the default base of the extrusion is set just below the minimum elevation, so
your extruded areas should always extend through the terrain surface.
You can provide additional control over how 3D vector features are rendered by provided attributes for those
features. The supported attributes are as follows:
• 3D_EX_HT - the value of this attribute allows you to override the default extrusion height and
extrude just that height in meters
• 3D_ZOFFSET - the value of this attribute allows you to provide an additional offset (in meters) when
rendering a 3D vector feature
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