QS BHD - Primary Displays

Observation Physics 

The Alert Display monitors serial and network data communication but does not concern itself with time tagging and data values. 
The Observation Physics display is useful for checking data reception and data values during the project setup phase, i.e. the correct driver is being used. 
It lists observations with their times and values.

When creating the display for the first time the Select Observations dialog is shown first.

Clicking on the double arrow moves all the available observations to the right.

Note this same dialog is shown via the Select Observations icon  .

Click on OK and the observations are listed.

Check the time and raw values to make sure that they are as you expect.

Click on View Properties   to select columns and formats to display.

If all is fine, you can close this display.

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Node QC

Another display that is very useful after defining and/or changing systems in the Database Setup program. It quickly checks that the computations you set up are actually solving.
When creating the display for the first time the Select Nodes dialog is opened first. 

  Click on the Reference Point symbol.

This conveniently moves the Reference Points of all objects to the right pane. These nodes are all you need to ensure that positions are being computed for all objects.

Single arrows move only the highlighted node. Double arrows move all nodes.

Note that the Select Nodes  icon also opens the Select Nodes dialog.

  Uncheck the Primary Computation tick box if there are multiple computations defined.

Once nodes are defined the display dialog opens.
In the example there are three computations: C-NAV, NR203 and Aquarius.
If any computation is not solving rows for the failing nodes are highlighted in red and the cause of the failure is displayed in the Status column.

Click on the View Properties  button to modify display content.

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Alert

Use the Alert Display to generate visual and/or audible warnings about failing I/O of interfaced systems, as well as received or calculated values that do not meet user-defined criteria, e.g. upper and lower limits.
Alerts for computations that are on Standby show their suspended status.

An empty dialog is shown when making a new display. If modifying the alerts of an existing display click on    in the toolbar.

Click on the add button.

Select a category. Then select the Alert Type.

Select from parameter lists and/or enter parameter values.

Pressing the View Properties   button opens this dialog:

After set up the dialog might look similar to this:

In this example:

• Rotation of the backhoe is limited to +100 deg. and -100 deg, with zero being straight ahead.

• The Trimble positioning system has dropped out of RTK Fixed mode.

• The bucket is above the design depth and no intrusion alerts are raised. 

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Navigation

Create a Navigation Display to visualize 2D positioning of one or more objects superimposed on background imagery, including ENCs, ECW files, CAD/GIS files, Line files and Sounding Grids.
Many functions are straight forward and do not need explaining in a Quickstart. A few less obvious functions are briefly addressed.

The main functions are all available from the toolbars:

Toolbar	Description
	Direct access to each of the individual layers (see below). Note that View Properties  also opens the same layers dialog box.
	Quick re-scaling of the display to user-defined precise scales. Click on the  button to enter a preset scale for each alphabet character.
	The usual tools for navigating around the display.
	The Main toolbar provides various tools: Pick Report - provides information about the ENC. Range and Bearing measurement - click once at the location from which measurements originate. A range circle and direction line are displayed. Geodetic Computation - The coordinates of a mouse-picked location are shown together with the distance along the active mainline (KP) and the offset from that line (DX). The location is shown in the Navigation screen as a small yellow marker: Range Markers - range and bearing indicators between user selected points. Waypoint Planning - creation of points, lines, polylines and areas in the display window itself. Anchor Planning - drag and drop of planned and dropped anchor locations. Target Selection - drag and drop of ARPA/AIS targets.
	Favorite displays. You can create and store particular views and quickly revert to any one of them using these tools.
	Vessel tracking button. When active all objects designated to be tracked are kept in view; the display re-scales automatically. When inactive, you are free to move the focus of the display to anywhere and/or zoom in and out without automatic re-scaling.

To set up the display click on the View Properties toolbar icon  .

This dialog opens:

The image below shows a summary of all the buttons available in the left pane. 
View, Layers and Objects are the main buttons, each with a number of secondary buttons.
Setting up the display is simply a matter of working from top to bottom.

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Profile Display

The Profile Display provides a slice view of the dredger Objects and Terrains (e.g. sounding grid) displayed from four different angles (starboard, port, aft and front).

As the Profile Display opens the program reads the active layer of the sounding grid and the design layer as set under Session Setup - Dredging - Design. 

So the initial display may look something like this:

Of course the display can be customized.

Click on the View Properties task bar button  .

Note that options in the Select menu open the same dialog as does the View Properties option.

 As with other displays, primary and secondary buttons are shown in the left pane.

Work your way from top to bottom. These are the options:

Parameters associated with Setup, Scales and Grid are all fairly self-explanatory.

Setup

Relative motion	When Relative Motion is on, the object remains in the center of the display; only the terrain, e.g. sounding grid, moves.  When Relative Motion is off, the terrain is stationary and the vessel moves across the display and may disappear.
Object tracking	Option only available when Relative motion has been activated. But the Object Tracking button   in the toolbar can be used at all times while on-line. When Object Tracking is on, the object sails to the edge of the display and is then placed back in the middle of it.  When Object Tracking is off, the terrain is stationary and the vessel moves across and off the display. When the vessel has sailed outside the display and you can not find it with the zoom functions, turn Object Tracking on to retrieve it.
Orientation	The object can be viewed relative to a line heading or to the heading of any of the calculated objects/nodes.
Origin	This is the side from which the object is viewed, projected onto the line if Orientation was set relative to a line heading.

Scales

Grid

Set the colors and line styles for the grid. 

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Objects

In the Select menu, click on Vessel.

This opens the View Properties dialog with the focus on the Objects button.

Select which Object to use as the Reference Object for the display.

Select a Node on that Object and the Computation in which the node coordinates are calculated.
Using this Object a longitudinal or a cross profile is drawn with the selected Node in the center of the screen.

Set up legend Symbols and Colors for each of the Objects.  

Multiple symbols may be shown at one time.
Symbols along the Horizontal and Vertical Legends point to the selected Node.
All other available Objects are drawn around this Object and Node.

In our example, indicator Symbols along the Horizontal and Vertical Legends are used to indicate the location of the selected Node for each Object.

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Terrains

By default the first layer defined in the active Sounding Grid is loaded as a Terrain. So too is the Design Model if it has been defined as a layer and contains data.

If further Terrains are required, the following terrain types are supported:

Sounding Grid - Select the sounding grid to use from the standard Windows browse dialog. Then select the correct layer in the next column.
If a sounding grid was selected in the 'Controller's Session Setup - Storage', the first defined layer will automatically be shown here, named Sounding Grid <Storage>.
When Under and Over Dredge Tolerances are used, these are also shown.
If necessary remove the sounding grid chosen in the Session Setup here by using the   button.

Echosounder - Single observations from echosounders can be displayed in real-time. This enables you to analyze the depth readings in comparison to a previously created terrain.
When selecting a Multibeam system, the swath must be set. 
Using direction starboard or port, the readings will show as a measured Terrain when drawn as lines.

Safety Line - It is possible to add a nominal safety line. A line is displayed at the manually entered depth (in survey units).
This line can be used in case no design is available and a depth needs to be displayed.

QPD Processing - Select *.qpd processed files. Multiple files can be selected.

QINSy Mapping - Select a *.pro file. (This is the old format. It can still be used, but will be phased out. Use the *.qgf format instead.) It is only possible to select one file at a time, but you can add more.

QGF Design Model - Select a *.qgf file. (This is the new QPS CAD format.)

Safety Line <Design> - This line was designed in the Dredging Design dialog when Design Method was set to Manual Depth.
A Storage - Sounding Grid does need to be set to show this line.

Sounding Grid <Design> - If a sounding grid with a design layer was selected in the Controller's Session Setup - Dredging - Design it will be shown here.

Sounding Grid <Storage> - If a sounding grid was selected in the 'Controller's Session Setup - Storage' it will automatically be shown here.

Water Level - Mean Actual Water Level, i.e. water surface, is shown.

Additional Terrain <Session> - A terrain from the Controller's Session Setup menu 'Additional Terrains' can be selected here.

Other settings are cosmetic and self-explanatory, except perhaps the fill type Color Banding.

Color banding - Only available when the layer type is Sounding Grid. 
Depths in the Profile Display are shown in their own color ranges, similar to depths in a sounding grid shown in the Navigation Display.

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Measurements 

Measurements are calculated from a node to a profile; they are not raw measurements.

Add a Measurement, select an Object Node and Computation, and then the Terrain to which the measurement is made.
Enter the properties of each Measurement added.

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Lines

The current active survey line is listed as well as any additional mainlines defined and activated in Session Setup - Planning.
Adjust the properties for each line separately in the Properties pane.

Similar to Objects, the position of the selected line can be shown using indicators (an open dot). 
The line can only be seen when sailing perpendicular to it. 
Use Settings - Origin - Front/Aft/Starboard/Port to get it in view. 
When the line has not been given a height, it will be shown at 0 meters. 

Sounding Grid

If a Sounding Grid is used as a Terrain, enter parameter values and make selections to determine how to show it.

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Generic 

The Generic Display is enormously powerful in that it can display virtually every parameter used in software with design of the layout completely in the hands of the operator.

When first created an empty dialog pops up. Click on the   toolbar icon.

This opens the Generic Layout Editor focused, by default, on the Display secondary button located under the primary Overview button. 
Enter values and make selections. 

To begin with, click on the Setup primary button. 

You will come back to the Overview primary button when some or all items have been added.
Work your way from top to bottom selecting each of the secondary buttons as they appear under the primary buttons.

These are all the buttons available:

To illustrate the process of selecting items you want shown in the final display take the example:

Observation System secondary button under the Raw Data primary button.

Click on  . This adds an initially undefined system under System Obs Parent Items.

For that Parent Item choose a System and an Observation.

Under Available Sub Items double click on any of the sub-items you want to appear in the display.

They are added to the Selected Sub Item list.

Click on each Selected Sub Item and modify its Properties as necessary.

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Changing the Layout via the Layout Editor

This page shows the layout of all items selected.

One way to reconfigure the layout is to highlight an item and use the   and   buttons to rearrange the layout order.

Another option is to use the mouse in the actual display to drag and drop individual or blocks of items (see Edit Layout In Display By Mouse).

By default only a limited number of columns (General columns) are shown in the layout overview.

Right clicking anywhere in the table pops up a menu with options, one of which is to add mode columns (Display columns).  

The properties for any individual item are accessed by:

• • either double clicking on an item.

  • or Highlighting an item and pressing  . All items are fairly self-explanatory.

In each case the definition page for that item is opened.
Some properties are directly editable in the layout table.

Please refer to BHD - Generic Display and  for descriptions of these Properties.

Save the layout.

An XML file is stored in the \CurrentProject\Settings\Display folder.

The initial display could look something like this:

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Changing the Layout in the Display by Mouse

Items can be moved around within the main Generic Display dialog by mouse.
The next image illustrates what happens when you click on an Item, in this case Survey Datum Name, and drag to another location; the whole block of text below this item is also picked up and moved.

This means you have to separate blocks of text.
Repeating the process is illustrated in the next image where Draft Fore Value was clicked and the block of text below was moved with it as the mouse was dragged to the left.

Of course the idea is to move items around so related data are clustered.
In order to accomplish this you may have to separate individual items so each can be moved independently.
Once an item is isolated from other items it can be moved individually from then on, even when positioned right under another item.

As an example the display could end up with the layout shown in the next image (after deleting some items and adding others).

Next it might be useful to highlight certain items with larger text and/or different colors. 
Using the right click menu select Display Properties. Modify one or more of the parameter values and notice that the changes apply to all items in the dialog.

In order to change individual items, either double-click on the item, or right click on the item and select Layout from the menu.
Each method takes you to the appropriate page of the Layout Editor. 

In the item Properties pane, modify any one or more properties.

The Display  and More Properties parameters offer the following options:

If User Defined is selected under More Properties, you can click on the button   which opens the User Defined Format Specifiers dialog where all font related items can be changed for the individual item.

Selecting User Defined under Display opens the User Defined Format Specifiers dialog for labeling:

Here you can use predefined specifiers, your own text, spaces and tabs to define the label and position of the item value.

Other Properties to try are Operators and Translations.

The final display could look something like this, although there is probably too much information in this one display.

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3D Grid

The 3D Grid Display shows multiple three dimensional objects simultaneously: 
DTMs, DTM Textures, Static Objects, Water Surface, Range Markers, Cables, Survey Lines, Anchors, and Vessels (pontoon, backhoe, bucket, etc.). 
Objects are seen moving in real-time updating DTM depths as dredging proceeds, both excavation and dumping.

Orienting the Display

Setup Display

Clicking on any icon in the   toolbar....

or clicking on the 3D Objects menu item....
or clicking on the View Properties task bar button  .... 

...all open the View Properties dialog. Which page of this multi-page dialog depends on which command is selected.

These are all the options:

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Vessels

Click on   and then on each Vessel object in turn.

For each Object, decide whether it should be shown. If Yes, select the Computation from which its position is drawn.

Then click on   to link the 3D File (*.x) from the standard Windows File Open dialog.

The 3D model can be manipulated as follows:

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Objects

DTM

Click on  .

Under DTM - Additional Terrains select the data to be used to build a 3D Wireframe.

A wireframe model represents the shape of a solid object by its characteristic lines and points.

The currently active Sounding Grid is loaded by default.

Up to 10 Additional Terrains can be loaded - see Controller's Session Setup - Planning.

Alternatively, when no data from the other selected DTM files is available, choose Create Flat Surface DTM which adds an infinite horizontal plane.

  In the Settings pane below select one of the layers from the DTM terrains list and set the properties of this layer.

DTM Textures

  Click on  .

DTM files selected in the DTM page are already visible in this list.

Click the   to add a geo-referenced image file (e.g. *.ECW) to drape on the DTM surface.
Create Texture Outside DTM adds an infinite horizontal plane where no data from the other selected DTM files is available.
This is meant as a visual aid only. 

For the sounding grid use these options to set the colors and textures for the selected DTM files.

When Use DTM Settings is checked you are electing to use the same layer and attribute that was set in the DTM dialog. 

When unchecked additional options are added to the dialog to allow definition of an alternative Layer, Attribute, and Reference Layer if applicable.

The latter could be the design layer used to show the difference between two layers in a selected color scheme.

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Static objects

There may be a need to display objects within the 3D scene that do not move. For example, offshore structures like wind turbines or pipelines. If 3D models of Static Objects are available, they can be added to the scene.

Click on  .

Use the   button to add an object.

Select object model Direct X meshes (*.x) and/or *.pro / *.qgf files, i.e. designs created with Terramodel or in the QINSy graphical format.

Make selections under Settings. 

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Water Plane

Click on  .

Choose whether to show a water surface and define how the water plane is set up.

Select either a Horizontal Plane or a Boundary. The Boundary option uses a DTM from a *.PRO / *.QGF file.
For the Boundary option use the browse button to select the *.PRO / *.QGF file which contains the DTM.

The height of the Water Plane is determined by either a Manually entered height relative to Vertical Datum or by an Object height.
In the latter case link the Water Plane to the height of the reference point of a selected object. The plane can be offset if that point is not at water level. 

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Line Planning

Click on  .

Make visible any Lines set in Controller-Settings-Session Setup-Line Planning.

Line heights are the same as those heights entered for each line when creating the Line Database file in the Processing Manager or Line Database Manager.

Decide which Line Aids to show.

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Range Markers

A Range Marker is a line between two selected points drawn with or without a label which indicates the range and bearing of the line, plus the height difference between the two points.

Click on  .

Click on   to create a new marker.

Label content depends on the Setup selection made, as depicted in the following image.

Select which Type of marker and then make the appropriate selections.

Setup	Description
	Range marker between two nodes on different objects. This type could be used to show the distance between two vessels. Type A label.
	Range marker between a node on a vessel and a fixed node as defined in the Database Setup. Type A label.
	Vertical marker between a node on a vessel and the sounding grid DTM below. Type B label.
	Vertical marker between a node on a vessel and the water plane as defined under option 'Water' above. Type B label.
	Range marker between a node on a vessel and a predefined point in a Line Database File. Type A label.
	Range marker between a node on a vessel and the location at which the left mouse button is clicked in the display. A new label is generated at each mouse click. Type A label.
	Range marker between an anchor wire and a selected waypoint. Not applicable to Backhoe dredging. This option enables the monitoring of the separation between an anchor wire and any potentially hazardous object. Label shows the range between the wire and waypoint, plus the height separation value.

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Cables - Not applicable.

Anchors - Not applicable.

View

Cameras

Cameras provide preset views of the dredging operation. Multiple cameras may be defined and the view easily switched between them.

A camera position determines from which direction and angle the data in the 3D grid display is viewed.

Cameras may be fixed or they can track an object.

Click on 

.

Click on 

 To add a Camera in addition to the Default Camera.

Default is the camera you have used thus far to zoom and pan with.

Its parameter values, shown in the bottom bar, reflect the last position it was in before entering this dialog.

Enter the Setup parameters for the new camera.

Analog

The Analog Display is used to display an observation in a Meter format or a Gauge format: 

For example:

Go to View on the menu bar and select Mode, and then Analog.

Go to View on the menu bar and select Data Type and then Observation Data.

When Observation Data is selected, there is an option in the View menu to correct for C-Os and Scale.

Go to Select on the menu bar and select Observation.

Select a Sensor system and an Observation. 

Go to View on the menu bar and select Properties in order to change the properties of the display.

To show the observation in Gauge format, go to View on the menu bar and select Mode, and then Gauge. 

Go to View on the menu bar and select Data Type and then Object Data.

Go to Select on the menu bar and select Object. Make parameter selections.

Go to View on the menu bar and select Properties in order to change the properties of the display.

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Height Aiding Driver

Height Aiding means to 'aid' the computation of the 'height' of a node position by adding an additional 'height aiding' observation to the adjustment in which the node position is determined.
All the resulting heights are still given with respect to the survey datum that has been selected in the Database Setup program.

The Height Aiding Driver Display is launched automatically when the Controller is started. 
It is useful to check the height aiding components of the various nodes to make sure they are as expected. 
You cannot close the display so, once values are checked, you are advised to minimize the window to gain screen space.

All the height component values are positive upwards, which means that positive bathy depths are displayed as negative heights. 
'N/A' means either Not Applicable or Not Available.

The object heights are computed for the object Reference Point in order to transfer height differences between objects and computations and in order to transfer object height components to other QINSy modules.
The delta height has been implemented in order to be able to combine accurate RTK heights on vessels with bathy depths on towed fish objects, in case accurate tide values (or geoid heights) are not available.
More information on the various height component settings can be found on the Help pages of the Database Setup program (Geodetic Parameters, Object Definition) and the Contoller's Computation Setup.

Proceed to: BHD - Volume Calculation.

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