Top View

This topic describes how the Top View behaves in relation to your equipment when it is moving.

There are two ways to show your equipment in relation to your surroundings when it is moving:

  • Relative Motion - your equipment is shown as fixed and your surroundings move along the Top View.

  • True Motion - your surroundings are fixed and your equipment moves across the Top View.

On this page:

View Settings

To check or change the settings for the Top View screen:

 Right mouse click in Top View > View Settings

Enter settings for the looks of the items in the Top View.

The Options in the right hand panel will vary depending on the type of equipment in use and on the types of devices installed on board.

Top View Settings

 

Tracking Point

 

Selection box

Use the browse button [...] to select an Offset Point as defined for this equipment in the Equipment EditorClosed Part of the VOSS.net software package, in which all parameters, dimensions, layout, arms, heads and interfacing with other equipment can be defined, normally by the surveyor.. See paragraph below: Tracking Point

Mode

Use the drop down menu to select how the screen should follow the equipment.
See paragraph below: Mode

Margin

This value indicates how close your equipment can come to the edge of the viewing screen before it will be redrawn in the middle.

Option not available for Mode: Relative Motion.

Heading

 

Mode

Use the drop down menu to select how the screen should adjust itself around the equipment.

Source

Option available for Mode: HeadClosed the tool with which Equipment performs operations, for example: drag head of a Trailer Suction Hopper Dredger, the bucket of an excavtor, a plough, Water Injection Dreger bar, etc. Up. Use the drop down menu to select an Active ArmClosed The part of Equipment between the Equipment Body and its Head. For example, the suction pipe and drag head of a Trailing Suction Hopper Dredger, or the combination of boom, stick and bucket of an excavator. as defined for this equipment in the Equipment Editor.

Offset

Option available for Modes: Head Up, Line Up and Custom Heading. How far offline from the RouteClosed Routes are aiding lines used in the construction of infrastructure. They usually correspond to the center or a standard offset to the center of that structure. A Centerline can be a Route. A Pipe or Pipeline can also be a Route. would you like to see the selected arm.

Margin

Option available for Mode: Head Up. The larger the Margin, the quicker a screen refresh is performed. Option not available for Mode: Relative Motion.

Equipment Render Settings

 

Equipment BodyClosed The main part of the Equipment; for example the hull of a vessel or the crane house of an excavator.

Select which type of drawing file to use: CADClosed Computer Aided Design - used for the technical representation of the works and also for equipment drawings. Drawing / 3D Model / Outline. Hide is not available for the Equipment Body.
Use Settings (spanner icon) to set how the equipment should be drawn in the screen:

The various settings are identical to the ones used in the 3D View.

Boom / FWD ROVClosed Remotely Operated Vehicle / Hull MBES with rotator / any arm

Select which type of drawing file to use: CAD Drawing / 3D Model / Line / Outline / Hide.
Use Settings to set how the equipment should be drawn in the screen. The items listed here depend on the arms as activated in VOSS.NET>Equipment Editor>Layout>Active Arms.

Custom Background Color

Tick to activate. Select a color using the drop down menu.

Toolbar Buttons

Add buttons to the view. This way you don't need to open the right-click context menu to carry out certain actions.

The available options depend on your type of equipment and the installed devices.

When you tick the various menu options, they will appear in the toolbar at the location as indicated:

Options

 

Show Info at Cursor

Show information at the location of your mouse, like position and levels.

Center View on Click

Wherever you click in the Top View with the left mouse button, this will be made the center of the Top View screen. If 'Follow Vessel' is active, and you click too close to the edge, the vessel will be placed in the middle again automatically.

Disable Follow on Pan

When you pan with the middle mouse button, 'Follow Vessel' will be automatically switched off when this option is activated.
To jump back to your vessel, use the Center Equipment button.

Show North Arrow

A large North Arrow will be placed in the top left hand corner of the view window.

Show GridClosed A type of DTM that is made manageable through sampling measured points into a regularly spaced raster, allowing fast and conditional access. Considered to be a secondary data set; since no original points are kept..

Small crosses and chart coordinates will be shown in the view.

Show Zoom Buttons

Two large buttons will be added to the Top View.

Show Scale Bar

A Scale Bar will be shown in the lower right hand corner of the view.

Show Safety Contour

A contour is a line through points of the same height. The Safety Contour is an aid for safe navigation, indicating the boundaries at a height that is chosen by the Master.
This option is not available for certain equipment, e.g. a horizontal chain dredger which works on land only.

Show Position History

This is the track where the Origin of your equipment has passed.

Show Vessel History

This option offers the possibility to mark the outline of your vessel during sailing or manoeuvering.

Show Dump Trace

This option is available for a Side Stone Dumping Vessel to generate traces for the active bays.
When on a Hopper Dredger, an imprint of the hopper will be shown at regular intervals.

Show Dredge Trace

Dredge Traces are markings to show where dredging has taken place.

Show Heading Arrow

The heading arrow is an arrow in the direction of the heading of your Equipment.

Show Ground Course Arrow

This is an arrow in the direction of movement over the ground at a chosen point on your equipment.

Show Navigation Target Info

When Navigate to (a Target in a Fix SetClosed A shape file that can contain fixes and/or targets. Targets are points (positions defined by an X and an Y co-ordinate) to be used in VOSS RT, for operators to perform certain actions on each target. For example, place a block, drop an anchor, install a vertical drain. In VOSS RT, at the moment of installation, automatic or manually a fix can be logged, that contains the actual co-ordinates, date & time and other parameters.) has been activated, the information box containing the information can be switched on or off here.

Show Chop Sticks

Chop Sticks are Ground Course Arrows attached to dredge heads.

Show Frustum

For use with a Swath Input device, or cable tracking with an Echoscope, the opening angle of the device can be visualized.

Show Swath History

When using a Swath Input device, the track can be shown in the graphical area.

Use the browse button [...] to enter the Swath Settings:

The maximum 'Age' to be shown is 20 seconds.

Show Range Circle

For crane use only.

Show the Range Circle of the current reach of the bucket. It can be configured in the Operation Settings.

Show Minimum / Maximum Reach

For crane use only.

The Minimum and Maximum reach will be drawn as circles on the seabed. They can be configured in the Operation Settings.

Show Bucket Fix Location

When the bucket is used to take fixes, you can show these in your view. Which point on the bucket is used to fix, is set in the Quick Access menu.

Show Tremie Pipe Info

Show all items as set in the Operation Settings.

ROV Info

When working with an ROV, show the related items.

Show Route Segment Highlight

Indicate for which part of the Route the information (heading, offset, chainage, etc.) will be calculated.

Design Visualisation

A Design is the model or fixed level to which fill, excavation or dredging should take place.

Use the drop down menu to select which Design to show:

None - No Design will be shown.

Active Design - Show only the Active Design.

All Designs - Show all Designs available in your project.

Show AIS Data

Show other vessels in your Top View, based on Automatic Identification System (AISClosed Automatic Identification System - is comprised of small transponders fitted to shipping vessels worldwide, which use short wave VHF radio signals to broadcast each vessel’s position, unique International Maritime Organisation (IMO) identity number and other useful information. The transmissions can be received by any vessel, land station or satellite in range and fitted with an AIS receiver.).

Show Excavation Line

A box will be drawn around the head, indicating the area it will cover when dredging. The box allows for a clamshell shapeClosed A geometric entity or a collection of such entities. Each entity is described by basic geometry such as a point, a line or an arc. Examples of shapes are: Route, Centerline, Waypoints, Fix Set, Dump Boxes, Progress Grid Model, Designs, etc. when open.

Show Offset Points

The Offset Points are defined in VOSS.NET Equipment Editor when creating this piece of equipment. They can be shown in the viewing area.

Click on the browse button [...] to the right.Select from the list which one(s) to show and fill in various settings for showing it/them in your screen.

Show Range Markers

Range Markers are measurements between two points which can be visualized as a line and in numerics.

Layer Visualization

This option is only available for Flexible Fall Pipe Vessels and can be used when using a Box Installation Plan. This Plan can be created in the VOSS.NET - Box Installation tool. The Plan shows how much rock is to be placed per box. The Plan can be selected at Operation Settings - Main Shapes.

  • As Planned - This shows the number of seconds that dumping should take place in a box. The Plan itself is not updated.

Design Visualisation

Option available for, e.g., a Swath Input device.

  • None - No design will be shown.

  • Active Design - Only the Active Design will be shown.

  • All Designs - All the designs as available in this project will be shown.

OK

Click to save all changed settings.

Top View Right Mouse Menu

 

Color Settings

Color Mode: Level / Dredged / Difference /Slope / Lithology / None (and many others) -

When Lithology is selected, only the top of the VoxelClosed In 3D computer graphics, a voxel represents a value on a regular grid in three-dimensional space. Voxels are a surface that can be used to integrate survey and geotechnical data in a single feature. In VOSS RT they are used for construction and dredging vessels, so the crew can see the types of soil present in various layers. Model will be shown in the Top View, as the other layers are underneath it.

When None is selected, no grid model will be shown.

Active Shapes

Lists shapes which can be (de-)activated. Remember that this changes nothing in the Operation Settings, it only turns visibility on or off.

Sounding Grid on Top

Option only available when recording Multibeam data into a Sounding Grid.

Select whether to draw the Sounding Grid or the Progress Grid on top.

Follow Vessel (or Crane, Equipment, etc.)Vessel (or Crane, Equipment, etc.)

When you turn Follow off, you can pan the view away from the equipment.
The choice of the Tracking Point defines how the equipment is centered. See paragraph below: Tracking Point

Navigate to

Select where to navigate to.

Cancel Navigate

This option is only available when 'Navigate to', above, was activated. You can cancel that option here.

Measure

Tool to get Easting/Northing and KP/Offset info of the target, as well as distance and bearing to the target (optionally via path).

Draw Profile

A support tool for online use, especially useful when discussing/explaining latest updated survey result with crew or identifying safe navigation options around the working area.

Drawing Mode

A task bar will appear, ready to be used for drawing extra items in your screen.

Set Vessel Target

The outline of your vessel can be saved in the Top View, to mark that location to come back to, for example.

Select Vessel Target

In VOSS.NET, an Equipment Plan can be created before a project starts. This plan can contain Vessel Targets, to indicate where the vessel should position itself so it can carry out its work. When the Equipment Plan has been transferred to VOSS RT, the Targets will be listed when you select this option.

Make sure you have the correct file selected in which they are stored: Menu>Operation Settings>Main Shapes>Equipment Plan.

Clear Vessel Target

The outline will remain in the Top View until 'Clear Vessel Target' is selected.

Draw Route

Draw a new CenterlineClosed An aiding line used in the construction of infrastructure. It usually corresponds to the center of that structure. here, in VOSS RT.
The route can be drawn graphically and/or coordinates can be entered numerically.

When drawing graphically, the backspace button can be used to remove the last point.

The options in the ‘New Route’ dialog allow the user to enter a name, adjust line settings and set the new route as Active Route.

When not set as active route, the route is added to the Supporting Shapes.

Tracking Point

The point on your equipment selected at Tracking Point will be kept in the middle when Relative Motion is chosen and will also be used to decide when a new screen should be built up when True Motion is used.

Mode

  • True Motion [Look Ahead] is designed for sailing forward.

  • True Motion [Look Around] is designed for maneuvering, where a screen refresh is performed all around your equipment.

  • Relative Motion - The equipment will be kept in the middle of the screen and the background will move around it.

Margin - The larger the Margin, the quicker a screen refresh is performed.

True Motion

If True Motion is chosen, your surroundings are being kept in one place, while your equipment moves across the Top View. When your equipment reaches the edge of the Top View, a new Top View will be built up. A large Margin % will perform a screen refresh more regularly. A 0 % Margin will only perform a screen refresh, when the Tracking Point reaches the very edge of the Top View.

True Motion [Look Ahead] will put your equipment on the opposite side of your sailing direction of the Top View, so you have a bigger screen area ahead of you.

True Motion [Look Around] will put your equipment in the middle of the screen, so you have screen area all around you.

 

Relative Motion

If Relative Motion is chosen, your equipment is being kept in one place while the surroundings move across the Top View. Your equipment is held in the middle of the Top View. If you zoom in a lot, you will notice that the point on your equipment that is chosen as Tracking Point will be held in the middle.

Follow Vessel (or Crane, Equipment, etc.)

Follow Vessel will always make sure your Vessel is visible in the Top View. If you want to inspect and zoom into some other area away from where your equipment is, you can un-tick the Follow option, and move around in your Top View by left mouse clicks, left, right, up and down keys and Zoom in / Zoom out.

 Right mouse click in Top View > Follow Vessel

If the tick mark is visible, the Vessel is being Followed.

Center Top View around equipment

Independent of Relative or True Motion, Follow Vessel or not, you can always inspect your surroundings in the Top View by left mouse clicks, zooming or using the left, right, up, down buttons. When you do that, the Center Equipment symbol will appear in the top right side of your Top View:

A left mouse click on this symbol will put your equipment back in the middle of the Top View, centering on the Tracking Point.
The Top View Tracking Point is set in the View Settings menu of the Top View.(See paragraph at top of page.)