Overview
This command provides simple drivers eye view through the model relative to reference geometry with user defined offsets and a surface mesh, that can be animated at a user defined speed to help validate simple line of sight model integrity.
Finding the command
In the Civil Frontstage main toolbar, select the Drive icon
Drive Reference Element Selection
The command requires linear geometry, where the mode is Alignments (default), all alignments highlight in the model to aid selection of the control.
Drive Controller
Following section of the reference geometry the view is reset looking along the selected geometry.
The Drive Controller includes
Location along slider – this provides the current station along an the reference alignment , start and end or distance along for linear geometry
Play button – start and stop drive animation
Minimap option – this is a dockable view that provides a top down overview that tracks the eye location in the direction of travel.
[Note: where targets are defined these are also shown in the minimap in the selected colour]
Reverse Direction – views the model running from high to low station
Options – opens new, non dockable dialog that defines the Eye position relative to the reference geometry (height and lateral offset, negative indicates left) and the drive speed. All units are controlled from ‘User Settings > General > Unit Settings’
Once set the Drive options dialog can be closed and it will remember the state for the next operation.
Targets – opens a new dialog to define simple line of sight target checks that are relative to the same control geometry.
When added, Targets are displayed in the model as coloured crosshair the drive path using the distances / offsets / height define and can be used to check simple line of sight.
Where any target is not visible an obstructed in the model by any surface mesh or solid, the drive animation will pause, provide a message that the target is not visible and open a TargetZoom view window.
TargetZoom provides a slider zoom control in the model to help in the identification of the line of sight analysis failure.
Please refer to this video for details: