Overlay
- Model Viewer 1.1 can import a line drawing to be displayed as an "overlay" on
the top surface of a grid or above the grid.
(How to import an overlay)
- The line drawing must be contained in either an ESRI Shapefile or a DXF file.
However, not all entities in a DXF file are supported. The following DXF entities are
displayed: line, polyline, circle, arc, and text.
- As illustrated below, the overlay may be "draped" on the top
surface of the grid (left figure), or displayed as a flat drawing above the grid (right figure).

To show or hide the overlay (after it has been imported)
- Click the Show menu and select Overlay. This
alternately shows or hides the overlay.